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Outputs (164)

Examining Human Wild-carnivore conflicts in Kargil Trans-Himalayas, India (2024)
Thesis
Ali, I. (2024). Examining Human Wild-carnivore conflicts in Kargil Trans-Himalayas, India. (Thesis). University of Salford

The inevitable human interaction with wildlife often gives rise to human-wildlife conflicts inflicting tangible (e.g., financial, persecutions) and intangible (e.g., emotional) losses on both sides. Despite the lack of scientific records in Kargil... Read More about Examining Human Wild-carnivore conflicts in Kargil Trans-Himalayas, India.

The trouble with a cuddle: Families’ experiences of supervising interactions between children in middle childhood and the family dog (2023)
Journal Article
Baatz, A., Bidgood, A., Taylor, G., & Young, R. (in press). The trouble with a cuddle: Families’ experiences of supervising interactions between children in middle childhood and the family dog. Human-Animal Interactions, https://doi.org/10.1079/hai.2023.0042

Background: There is growing scientific interest in the benefits for children of interacting with and engaging with domestic dogs. Since the effects of such pairings on the dog are under explored, this study aimed to explore the lived experiences of... Read More about The trouble with a cuddle: Families’ experiences of supervising interactions between children in middle childhood and the family dog.

Habitats: Developments in managing the ecological impacts of noise on wildlife habitats for sustainable development (2023)
Conference Proceeding
Waddington, D., Wood, M., Davies, W., Young, R., & Engel, M. (in press). Habitats: Developments in managing the ecological impacts of noise on wildlife habitats for sustainable development.

The Habitats project integrates research in the fields of ecological impacts and environmental noise to facilitate development of management tools and processes needed for sustainable development. This conference paper summarises the content and outc... Read More about Habitats: Developments in managing the ecological impacts of noise on wildlife habitats for sustainable development.

What do we know about noise impacts on birds? A systematic review focusing on acoustic methodology (2023)
Conference Proceeding
Engel, M., Scott, A., Davies, W., Waddington, D., Wood, M., & Young, R. (in press). What do we know about noise impacts on birds? A systematic review focusing on acoustic methodology.

In recent years, several studies have shown how anthropogenic noise impacts wildlife. The methodologies used to quantify noise appear to influence data reliability and subsequent findings. Therefore, it is appropriate to review the robustness of acou... Read More about What do we know about noise impacts on birds? A systematic review focusing on acoustic methodology.

Impacts of anthropogenic sounds on bird call activities: A case study in Aachen, Germany (2023)
Journal Article
Engel, M., Leedale, A., Young, R., Davies, W., & Wood, M. (2023). Impacts of anthropogenic sounds on bird call activities: A case study in Aachen, Germany. https://doi.org/10.61782/fa.2023.0912

Since the definition of the Environmental Noise Directive 2002/49/EC, various tools, reports, and action plans have been developed to assess and improve the sonic environment according to human perception and well-being. Few methodologies and report... Read More about Impacts of anthropogenic sounds on bird call activities: A case study in Aachen, Germany.

Behavioural effects of noise on Linnaeus's two-toed sloth ( (2023)
Journal Article
de Abreu Rezende, Y. G., Queiroz, M. B., Young, R. J., & da Silva Vasconcellos, A. (in press). Behavioural effects of noise on Linnaeus's two-toed sloth (. Animal Welfare Journal, 32, e40. https://doi.org/10.1017/awf.2023.34

Anthropogenic noise has been related to stress in captive animals; despite this there have been few studies on animal welfare assessment in walk-through zoo enclosures. We aimed to investigate the behavioural effects of noise on a male-female pair of... Read More about Behavioural effects of noise on Linnaeus's two-toed sloth (.

Testing the accuracy of wearable technology to assess sleep behaviour in domestic dogs: a prospective tool for animal welfare assessment in kennels (2023)
Journal Article
Schork, I. G., Manzo, I. A., Oliveira, M. R. B. D., Costa, F. V., Young, R. J., & De Azevedo, C. S. (in press). Testing the accuracy of wearable technology to assess sleep behaviour in domestic dogs: a prospective tool for animal welfare assessment in kennels. Animals, 13(9), 1467. https://doi.org/10.3390/ani13091467

Sleep is a physiological process that has been shown to impact both physical and psychological heath of individuals when compromised; hence, it has the potential to be used as an indicator of animal welfare. Nonetheless, evaluating sleep in non-human... Read More about Testing the accuracy of wearable technology to assess sleep behaviour in domestic dogs: a prospective tool for animal welfare assessment in kennels.

Review of the effects of enclosure complexity and design on the behaviour and physiology of zoo animals (2023)
Journal Article
de Azevedo, C. S., Cipreste, C. F., Pizzutto, C. S., & Young, R. J. (2023). Review of the effects of enclosure complexity and design on the behaviour and physiology of zoo animals. Animals, 13(8), 1277. https://doi.org/10.3390/ani13081277

The complexity of the habitat refers to its physical geometry, which includes abiotic and biotic elements. Habitat complexity is important because it allows more species to coexist and, consequently, more interactions to be established among them. Th... Read More about Review of the effects of enclosure complexity and design on the behaviour and physiology of zoo animals.

Understanding natural sound sources in urban soundscapes through psychoacoustic and bioacoustic indicators (2023)
Conference Proceeding
Engel, M., Davies, W., & Young, R. (2023). Understanding natural sound sources in urban soundscapes through psychoacoustic and bioacoustic indicators. In Fortschritte der Akustik - DAGA 2023

Over the recent years, it became more evident in soundscape studies realised in urban parks the importance of natural sound sources as a restorative resource for human health and well-being. This study investigates psychoacoustic and bioacoustics pat... Read More about Understanding natural sound sources in urban soundscapes through psychoacoustic and bioacoustic indicators.

Noise interfere on feeding behaviour but not on food preference of saffron finches (Sicalis flaveola) (2023)
Journal Article
Duarte, R. H. L., de Oliveira Passos, M. F., Beirão, M. V., Midamegbe, A., Young, R. J., & de Azevedo, C. S. (2023). Noise interfere on feeding behaviour but not on food preference of saffron finches (Sicalis flaveola). Behavioural Processes, 206, 104844. https://doi.org/10.1016/j.beproc.2023.104844

Noise pollution exerts negative well-being effects on animals, especially for captive individuals. A decrease in feeding, reproduction, attention, and an increase in stress are examples of negative effects of noise pollution on animals. Noise polluti... Read More about Noise interfere on feeding behaviour but not on food preference of saffron finches (Sicalis flaveola).

Acoustic monitoring of black-tufted marmosets in a tropical forest disturbed by mining noise (2023)
Journal Article
Bittencourt, E., Vasconcellos, A., Sousa-Lima, R., Young, R., & Duarte, M. (2023). Acoustic monitoring of black-tufted marmosets in a tropical forest disturbed by mining noise. Animals, 13(3), https://doi.org/10.3390/ani13030352

Simple Summary: Communication is one way that animals use to obtain and defend resources, escape predators and attract sexual partners. However, this process can be disrupted by anthropogenic noise, which often differs from natural sounds in frequenc... Read More about Acoustic monitoring of black-tufted marmosets in a tropical forest disturbed by mining noise.

Snapshot of the Atlantic Forest canopy: surveying arboreal mammals in a biodiversity hotspot (2022)
Journal Article
Kaizer, M. C., Alvim, T. H., Novaes, C. L., McDevitt, A. D., & Young, R. J. (2022). Snapshot of the Atlantic Forest canopy: surveying arboreal mammals in a biodiversity hotspot. Oryx, 56(6), 825-836. https://doi.org/10.1017/s0030605321001563

The Atlantic Forest of South America supports a rich terrestrial biodiversity but has been reduced to only a small extent of its original forest cover. It hosts a large number of endemic mammalian species but our knowledge of arboreal mammal ecology... Read More about Snapshot of the Atlantic Forest canopy: surveying arboreal mammals in a biodiversity hotspot.

Habitats : managing the ecological impacts of noise on wildlife habitats for sustainable development (2022)
Presentation / Conference
Waddington, D., Wood, M., Davies, W., & Young, R. (2022, August). Habitats : managing the ecological impacts of noise on wildlife habitats for sustainable development. Presented at Internoise 2022, Glasgow, Scotland

The objective of the Habitats project is to integrate research in the fields of ecological impacts and of environmental noise, developing management tools and processes to enable sustainable development. Rapid population expansion and economic deve... Read More about Habitats : managing the ecological impacts of noise on wildlife habitats for sustainable development.

Callout analysis in relation to wild birds in a tropical city: implications for urban species management (2022)
Journal Article
Hinchcliffe, D., Young, R., & Teixeira, C. (2022). Callout analysis in relation to wild birds in a tropical city: implications for urban species management. Urban Ecosystems, 25(6), 1643-1652. https://doi.org/10.1007/s11252-022-01256-1

Urbanisation is changing landscapes at an unprecedented rate, which consequently changes species compositions. We investigate problems faced by urban birds in a neotropical city by analysing the responses made to callouts by the environmental police... Read More about Callout analysis in relation to wild birds in a tropical city: implications for urban species management.

To pet or to enrich? Increasing dogs’ welfare in veterinary clinics/shelters: a pilot study (2022)
Journal Article
Lopes, J., Daud, N., Young, R., & de Azevedo, C. (2022). To pet or to enrich? Increasing dogs’ welfare in veterinary clinics/shelters: a pilot study. Journal of Veterinary Behavior: Clinical Applications and Research, 52, 31-36. https://doi.org/10.1016/j.jveb.2022.05.005

Undesirable and problematic behaviors such as an increase in aggressiveness and attempts to escape are frequently provoked when a pet dog is maintained for long periods in stressful environments such as veterinary clinics or shelters. Environmental e... Read More about To pet or to enrich? Increasing dogs’ welfare in veterinary clinics/shelters: a pilot study.

How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) (2022)
Journal Article
Schork, I., Manzo, I., Beiral De Oliveira, M., Costa, F., Palme, R., Young, R., & de Azevedo, C. (2022). How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris). Behavioural Processes, 199, 104662. https://doi.org/10.1016/j.beproc.2022.104662

Studies with humans and some other animal species have shown that sleep is compromised when the presence of external factors such as light, sound, and temperature surpass normal levels. This study investigated the effects of these environmental condi... Read More about How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris).

Environmental enrichment for collared peccaries Dicotyles tajacu, Tayassuidae in managed care: Different items provoke different behavioural responses (2022)
Journal Article
de Faria, C., Fa, F., Costa, D., da Silva, M., da Silva, B., Young, R., & Azevado, C. (2022). Environmental enrichment for collared peccaries Dicotyles tajacu, Tayassuidae in managed care: Different items provoke different behavioural responses. ˜The œJournal of zoo and aquarium research, 10(2), 82-90. https://doi.org/10.19227/jzar.v10i2.61082OPEN

Being in human care often modifies the behaviour of animals, mainly because of the lack of environmental stimuli, and the ease of finding food and reproductive partners. Animals in human care may have a poorer behavioural repertoire and lower welfare... Read More about Environmental enrichment for collared peccaries Dicotyles tajacu, Tayassuidae in managed care: Different items provoke different behavioural responses.

Flashy male Jamaican anoles Anolis grahami show accelerated telomere attrition (2022)
Journal Article
Passos, L., Young, R., & Garcia, G. (2022). Flashy male Jamaican anoles Anolis grahami show accelerated telomere attrition. Herpetological journal, 32(2), 80-84. https://doi.org/10.33256/32.2.8084

Secondary sexual traits have evolved through sexual selection, many species have developed signals that can indicate their level of other fitness-relevant traits such as fight ability. Previous studies have shown that male sexual signals are honest s... Read More about Flashy male Jamaican anoles Anolis grahami show accelerated telomere attrition.

The cyclic interaction between daytime behavior and the sleep behavior of laboratory dogs (2022)
Journal Article
Schork, I., Manzo, I., De Oliveira, M., da Costa, F., Young, R., & de Azevedo, C. (2022). The cyclic interaction between daytime behavior and the sleep behavior of laboratory dogs. Scientific reports, 12(1), 478. https://doi.org/10.1038/s41598-021-04502-2

Sleep deprivation has been found to negatively affect an individual´s physical and psychological health. Sleep loss affects activity patterns, increases anxiety-like behaviors, decreases cognitive performance and is associated with depressive states.... Read More about The cyclic interaction between daytime behavior and the sleep behavior of laboratory dogs.

Temperature and exudativory as drivers of the marmoset (Callithrix spp.) daily activity period (2021)
Journal Article
Hilário, R. R., Silvestre, S. M., Abreu, F., Beltrão‐Mendes, R., de Castro, C. S. S., Chagas, R. R. D., …Souza‐Alves, J. P. (2021). Temperature and exudativory as drivers of the marmoset (Callithrix spp.) daily activity period. American Journal of Primatology, 84(6), e23341. https://doi.org/10.1002/ajp.23341

Primates are affected by fluctuations in ambient temperatures, mostly through thermoregulatory costs and changes in the availability of food. In the present study, we investigate whether the ambient temperature and proxies of food availability affect... Read More about Temperature and exudativory as drivers of the marmoset (Callithrix spp.) daily activity period.

What is better for animal conservation translocation programmes: Soft‐ or hard‐release? A phylogenetic meta‐analytical approach (2021)
Journal Article
Resende, P. S., Viana‐Junior, A. B., Young, R. J., & Azevedo, C. S. (2021). What is better for animal conservation translocation programmes: Soft‐ or hard‐release? A phylogenetic meta‐analytical approach. Journal of Applied Ecology, 58(6), 1122-1132. https://doi.org/10.1111/1365-2664.13873

Animal conservation translocation is an important tool available to conservation biologists to address problems of isolated, declining or endangered populations. This approach includes both captive‐bred and free‐ranging origin animals, which are used... Read More about What is better for animal conservation translocation programmes: Soft‐ or hard‐release? A phylogenetic meta‐analytical approach.

Animal personality and conservation : basics for inspiring new research (2021)
Journal Article
de Azevedo, C., & Young, R. (2021). Animal personality and conservation : basics for inspiring new research. Animals, 11(4), e1019. https://doi.org/10.3390/ani11041019

The number of animal species threatened with extinction are increasing every year, and biologists are conducting animal translocations, as one strategy, to try to mitigate this situation. Furthermore, researchers are evaluating methods to increase tr... Read More about Animal personality and conservation : basics for inspiring new research.

Do captive golden mantella frogs recognise wild conspecifics calls? Responses to the playback of captive and wild calls (2021)
Journal Article
Passos, L., Garcia, G., & Young, R. (2021). Do captive golden mantella frogs recognise wild conspecifics calls? Responses to the playback of captive and wild calls. #Journal not on list, 9(1), 49-54. https://doi.org/10.19227/jzar.v9i1.476

With so many species being threatened with extinction, captive breeding programmes are becoming an important aspect of ex-situ conservation. Captive populations are important for species conservation and for reintroduction back into the wild. Some of... Read More about Do captive golden mantella frogs recognise wild conspecifics calls? Responses to the playback of captive and wild calls.

Changes on soundscapes reveal impacts of wildfires in the fauna of a Brazilian savanna (2021)
Journal Article
Duarte, M., Sousa-Lima, R., Young, R., Vasconcelos, M., Bittencourt, E., Scarpelli, M., …Pieretti, N. (2021). Changes on soundscapes reveal impacts of wildfires in the fauna of a Brazilian savanna. Science of the Total Environment, 769, 144988. https://doi.org/10.1016/j.scitotenv.2021.144988

Wildfire is a natural process in Brazilian savannas, but human activities alter fire regimes and threaten biodiversity. In this study, we used an ecoacoustics approach to assess fauna responses and recovery after wildfire in a Brazilian savanna. Six... Read More about Changes on soundscapes reveal impacts of wildfires in the fauna of a Brazilian savanna.

Biophony in a noisy tropical urban forest fragment (2021)
Journal Article
Gonçalves Santos, S., Pieretti, N., Young, R., & Duarte, M. (2021). Biophony in a noisy tropical urban forest fragment. Biota Colombiana, 22(1), 96-107. https://doi.org/10.21068/c2021.v22n01a06

Anthropogenic noise, which is part of an urban soundscape, can negatively affect the behaviour of wild animals. Here we investigated how biophony (animal sounds) was affected by noise in an urban Brazilian forest frag-ment. Our hypothesis was that no... Read More about Biophony in a noisy tropical urban forest fragment.

Ethogram and time-activity budget of the collared peccary (Pecari tajacu, Tayassuidae) : implications for husbandry and welfare (2020)
Journal Article
da Silva, M., de Faria, C., de Souza Sá, F., Lovestain Costa, D., da Silva, B., de Deus, G., …de Azevedo, C. (2020). Ethogram and time-activity budget of the collared peccary (Pecari tajacu, Tayassuidae) : implications for husbandry and welfare. Journal of Natural History, 54(25-26), 1617-1635. https://doi.org/10.1080/00222933.2020.1819453

The collared peccary, Pecari tajacu, is a mammal in the family Tayassuidae from the Americas that occurs from the United States to north Argentina and throughout Brazil. They are very sociable animals, living in groups of six to nine individuals. In... Read More about Ethogram and time-activity budget of the collared peccary (Pecari tajacu, Tayassuidae) : implications for husbandry and welfare.

Validating the use of oral swabs for telomere length assessment in dogs (2020)
Journal Article
Dutra, L., Souza, F., Friberg, I., Araújo, M., Vasconcellos, A., & Young, R. (2020). Validating the use of oral swabs for telomere length assessment in dogs. Journal of Veterinary Behavior: Clinical Applications and Research, 40, 16-20. https://doi.org/10.1016/j.jveb.2020.07.011

The relative telomere length, a biomarker of cellular aging, can be influenced by the cumulative effects of positive and negative events experienced by an individual. For this reason, it has been used to assess the welfare of nonhuman species. Ensuri... Read More about Validating the use of oral swabs for telomere length assessment in dogs.

Impacts of noise pollution on the agonistic interactions of the saffron finch (Sicalis flaveola Linnaeus, 1766) (2020)
Journal Article
de Oliveira Passos, M., Beirão, M., Midamegbe, A., Duarte, R., Young, R., & de Azevedo, C. (2020). Impacts of noise pollution on the agonistic interactions of the saffron finch (Sicalis flaveola Linnaeus, 1766). Behavioural Processes, 180, 104222. https://doi.org/10.1016/j.beproc.2020.104222

Impacts of noise pollution are recognized as a source of stress for animals and as a form of environmental degradation. Behavioural changes associated with noise, such as reduction of reproductive success, reduction in feeding behaviour, increase in... Read More about Impacts of noise pollution on the agonistic interactions of the saffron finch (Sicalis flaveola Linnaeus, 1766).

A global review of animal translocation programs (2020)
Journal Article
Resende, P., Viana–Junior, A., Young, R., & de Azevedo, C. (2020). A global review of animal translocation programs. Animal Biodiversity and Conservation, 43(2), 221-232. https://doi.org/10.32800/abc.2020.43.0221

We performed a bibliometric analysis to investigate the efficiency of release techniques (soft and hard–release), to analyse the characteristics and outcomes of the translocation programs, to identify knowledge gaps, and to provide recommendations. A... Read More about A global review of animal translocation programs.

How does captivity affect skin colour reflectance of golden mantella frogs? (2020)
Journal Article
Figueiredo Passos, L., Garcia, G., & Young, R. (2020). How does captivity affect skin colour reflectance of golden mantella frogs?. Herpetological journal, 30(1), 13-19. https://doi.org/10.33256/hj30.1.1319

Coloration is an important trait for social communication in amphibians, being used in intra- and intersexual signalling to express information about individual body condition and health state, amongst other things. The striking colour pattern exhibi... Read More about How does captivity affect skin colour reflectance of golden mantella frogs?.

Is mare sexual behavior affected by age and can it predict ovulation? (2020)
Journal Article
Rocha, C., de Carvalho, E. D. C., de Castro, F., de Sena Xavier, I., Young, R., Palhares, M., …Valle, G. (2020). Is mare sexual behavior affected by age and can it predict ovulation?. Applied Animal Behaviour Science, 224, 104937. https://doi.org/10.1016/j.applanim.2020.104937

Although discontinued with the introduction of ultrasonography, the study of mare sexual behavior may provide useful information for herds that lack technical assistance. In order to investigate how mare sexual behavior is associated with ovulation a... Read More about Is mare sexual behavior affected by age and can it predict ovulation?.

Systematics, biogeography and conservation of Bald Uakaris (Cacajao Lesson, 1840) (2020)
Thesis
Silva, F. Systematics, biogeography and conservation of Bald Uakaris (Cacajao Lesson, 1840). (Thesis). University of Salford

Uakaris, genus Cacajao, possess adaptations to their unripe seed-focused diet and habitat preference for Amazonian flooded forest habitats. These include large procumbent canines (shared by the other 2 Pitheciinae, Chiropotes and Pithecia, large home... Read More about Systematics, biogeography and conservation of Bald Uakaris (Cacajao Lesson, 1840).

Captive-born collared peccaries learning about their predators : lessons learnt but not remembered (2019)
Journal Article
de Faria, C., de Souza Sá, F., Lovenstain Costa, D., da Silva, M., da Silva, B., Young, R., & de Azevedo, C. (2020). Captive-born collared peccaries learning about their predators : lessons learnt but not remembered. Behavioural Processes, 171, 104031. https://doi.org/10.1016/j.beproc.2019.104031

Captive-born animals frequently lose their anti-predatory abilities due to the absence of encounters with their predators, but these abilities can be regained through specific training. Anti-predator training can, thus, enhance the success of reintro... Read More about Captive-born collared peccaries learning about their predators : lessons learnt but not remembered.

Environmental Enrichment : the creation of opportunities for informal learning (2019)
Book Chapter
Young, R., Schetini, C., & Cipreste, C. (2020). Environmental Enrichment : the creation of opportunities for informal learning. In V. Melfi, N. Dorey, & S. Ward (Eds.), Zoo Animal Learning and Training (101-118). West Sussex, UK: John Wiley & Sons. https://doi.org/10.1002/9781118968543.ch6

This chapter focuses on the informal learning opportunities that arise from environmental enrichment and what their consequences are for the animal. Environmental enrichment typically involves the addition of novel stimuli to a captive animal's envir... Read More about Environmental Enrichment : the creation of opportunities for informal learning.

Gaps in terrestrial soundscape research : it’s time to focus on tropical wildlife (2019)
Journal Article
Scarpelli, M., Ribeiro, M., Teixeira, F., Young, R., & Teixeira, C. (2020). Gaps in terrestrial soundscape research : it’s time to focus on tropical wildlife. Science of the Total Environment, 707, 135403. https://doi.org/10.1016/j.scitotenv.2019.135403

There has been a body of research examining the sounds produced in landscapes. These sounds are commonly defined as soundscapes, however, the term is often used in different contexts. To understand the various meanings attributed to soundscapes, we i... Read More about Gaps in terrestrial soundscape research : it’s time to focus on tropical wildlife.

Terrestrial behavior in titi monkeys (Callicebus, Cheracebus, and Plecturocebus) : potential correlates, patterns, and differences between genera (2019)
Journal Article
Souza-Alves, J., Young, R., & Barnett, A. (2019). Terrestrial behavior in titi monkeys (Callicebus, Cheracebus, and Plecturocebus) : potential correlates, patterns, and differences between genera. International Journal of Primatology, 40, 553-572. https://doi.org/10.1007/s10764-019-00105-x

For arboreal primates, ground use may increase dispersal opportunities, tolerance to habitat change, access to ground-based resources, and resilience to human disturbances, and so has conservation implications. We collated published and unpublished d... Read More about Terrestrial behavior in titi monkeys (Callicebus, Cheracebus, and Plecturocebus) : potential correlates, patterns, and differences between genera.

Effects of mining truck traffic on cricket calling activity (2019)
Journal Article
Duarte, M., Cailari, E., Scarpelli, M., Lobregat, G., Young, R., & Sousa-Lima, R. (2019). Effects of mining truck traffic on cricket calling activity. ˜The œJournal of the Acoustical Society of America (Online), 146(1), 656-664. https://doi.org/10.1121/1.5119125

Anthropogenic noise is a global pollutant and several studies have identified its impact on wildlife. This research shows how the noise produced by mining affects crickets' acoustic communication. Two passive acoustic monitoring devices (SMII) were i... Read More about Effects of mining truck traffic on cricket calling activity.

Impacts of food-based enrichment on behaviour and physiology of male greater rheas (Rhea Americana, Rheidae, Aves) (2019)
Journal Article
Lima, M., de Azevedo, C., Young, R., & Viau, P. (2019). Impacts of food-based enrichment on behaviour and physiology of male greater rheas (Rhea Americana, Rheidae, Aves). Papéis Avulsos de Zoologia, 59, https://doi.org/10.11606/1807-0205/2019.59.11

Distress can be defined as a biological response of an individual to long-term threats to its homeostasis and it should be avoided from an animal welfare perspective. High levels of stress hormones and the expression of abnormal behaviours are respon... Read More about Impacts of food-based enrichment on behaviour and physiology of male greater rheas (Rhea Americana, Rheidae, Aves).

Effects of the neutral household detergent on the behaviour and personality of guppy Poecilia reticulata (Peters, 1859) (Osteichthyes: Poeciliidae) (2019)
Journal Article
Lopes, J., Young, R., & de Azevedo, C. (2019). Effects of the neutral household detergent on the behaviour and personality of guppy Poecilia reticulata (Peters, 1859) (Osteichthyes: Poeciliidae). Acta ethologica, 22(2), 113-123. https://doi.org/10.1007/s10211-019-00313-x

Chemical pollution of aquatic environments has been increasing in recent times, causing great damage to the ecosystems and to the fishery sector. Pollutants can negatively alter an animals’ life, and in this investigation, we verify if a neutral hous... Read More about Effects of the neutral household detergent on the behaviour and personality of guppy Poecilia reticulata (Peters, 1859) (Osteichthyes: Poeciliidae).

Non-invasive monitoring for population assessments of a critically endangered Neotropical primate (2019)
Thesis
Da Cruz Kaizer, M. Non-invasive monitoring for population assessments of a critically endangered Neotropical primate. (Thesis). University of Salford

The northern muriqui (Brachyteles hypoxanthus), is a Critically Endangered primate endemic to the Atlantic Forest of Brazil. Remnant populations of muriquis suffer from a wide range of anthropogenic pressures and face a high risk of extinction due... Read More about Non-invasive monitoring for population assessments of a critically endangered Neotropical primate.

Comparing the bacterial communities of wild and captive golden mantella frogs: Implications for amphibian conservation (2018)
Journal Article
Passos, L. F., Garcia, G., & Young, R. J. (2018). Comparing the bacterial communities of wild and captive golden mantella frogs: Implications for amphibian conservation. PloS one, 13(10), https://doi.org/10.1371/journal.pone.0205652

Bacterial communities are frequently found in symbiotic associations with most animal species. The characteristically moist amphibian skin provides a good environment for the growth of some species of bacteria; among these a few can act as a first li... Read More about Comparing the bacterial communities of wild and captive golden mantella frogs: Implications for amphibian conservation.

Comparing the bacterial communities of wild and captive golden mantella frogs : implications for amphibian conservation (2018)
Journal Article
Passos, L., Garcia, G., & Young, R. (2018). Comparing the bacterial communities of wild and captive golden mantella frogs : implications for amphibian conservation. PLoS ONE, 13(10), https://doi.org/10.1371/journal.pone.0205652

Bacterial communities are frequently found in symbiotic associations with most animal species. The characteristically moist amphibian skin provides a good environment for the growth of some species of bacteria; among these a few can act as a first li... Read More about Comparing the bacterial communities of wild and captive golden mantella frogs : implications for amphibian conservation.

Personality, abnormal behaviour, and health : an evaluation of the welfare of police horses (2018)
Journal Article
Schork, I., Schetini de Azevedo, C., & Young, R. (2018). Personality, abnormal behaviour, and health : an evaluation of the welfare of police horses. PLoS ONE, 13(9), e0202750. https://doi.org/10.1371/journal.pone.0202750

An animal’s welfare depends on an individual’s capacity to adapt to the environment in which it lives. This adaptation is directly associated with the quality of the environment and to the possibility of expressing natural behaviours. Horses kept in... Read More about Personality, abnormal behaviour, and health : an evaluation of the welfare of police horses.

Captive-born collared peccary (Pecari tajacu, Tayassuidae) fails to discriminate between predator and non-predator models (2018)
Journal Article
Magno de Faria, C., de Souza Sá, F., Costa, D., da Silva, M., da Silva, B., Young, R., & Schetini, C. (2018). Captive-born collared peccary (Pecari tajacu, Tayassuidae) fails to discriminate between predator and non-predator models. Acta ethologica, 21(3), 175-184. https://doi.org/10.1007/s10211-018-0298-3

Captive animals may lose the ability to recognize their natural predators, making conservation programs more susceptible to failure if such animals are released into the wild. Collared peccaries are American tayassuids that are vulnerable to local... Read More about Captive-born collared peccary (Pecari tajacu, Tayassuidae) fails to discriminate between predator and non-predator models.

The different physical and behavioural characteristics of zoo mammals that influence their response to visitors (2018)
Journal Article
Queiroz, M., & Young, R. (2018). The different physical and behavioural characteristics of zoo mammals that influence their response to visitors. Animals, 8(139), https://doi.org/10.3390/ani8080139

The factors underlying the ‘zoo visit effect’ (changes in animal behaviour/physiology in response to visitor presence) are still poorly understood, despite it being widely investigated. The present study examined the effect of zoo visitors on the beh... Read More about The different physical and behavioural characteristics of zoo mammals that influence their response to visitors.

Low welfare impact of noise : assessment in an experimental model of mice infected by Herpes simplex-1 (2018)
Journal Article
Araújo, F., Espírito Santo, L., Teixeira, A., Santos, B., Filho, B., Silva, T., …Campos, M. (2018). Low welfare impact of noise : assessment in an experimental model of mice infected by Herpes simplex-1. Applied Animal Behaviour Science, 207, 79-88. https://doi.org/10.1016/j.applanim.2018.07.010

The breeding practices adopted and the equipment typically found in animal facilities produce sounds at frequencies within the auditory range of the mice (1 to 100 kHz), which can cause hearing and other non-hearing effects. Another aspect that could... Read More about Low welfare impact of noise : assessment in an experimental model of mice infected by Herpes simplex-1.

Urban sloths : public knowledge, opinions, and interactions (2018)
Journal Article
Pereira, K., Young, R., Boere, V., & Silva, I. (2018). Urban sloths : public knowledge, opinions, and interactions. Animals, 8(6), #90. https://doi.org/10.3390/ani8060090

Free-range sloths living in an urban environment are rare. In this study, the opinions, attitudes, and interactions with a population of Bradypus variegatus were investigated through short, structured interviews of people in the pubic square where th... Read More about Urban sloths : public knowledge, opinions, and interactions.

Comparing the bacterial communities of wild and captive golden mantella frogs: Implications for amphibian conservation (2018)
Journal Article
Passos, L., Garcia, G., & Young, R. (2018). Comparing the bacterial communities of wild and captive golden mantella frogs: Implications for amphibian conservation. PLoS ONE, 13(10), https://doi.org/10.1371/journal.pone.0205652

Bacterial communities are frequently found in symbiotic associations with most animal species. The characteristically moist amphibian skin provides a good environment for the growth of some species of bacteria; among these a few can act as a first li... Read More about Comparing the bacterial communities of wild and captive golden mantella frogs: Implications for amphibian conservation.

Comparing contact calling between black tufted-ear marmosets (Callithrix penicillata) in a noisy urban environment and in a quiet forest (2017)
Journal Article
Santos, S., Duarte, M., Sousa-Lima, R., & Young, R. (2017). Comparing contact calling between black tufted-ear marmosets (Callithrix penicillata) in a noisy urban environment and in a quiet forest. International Journal of Primatology, 38, 1130-1137. https://doi.org/10.1007/s1076

All habitats have some level of noise but anthropogenic sounds such as those produced by traffic are structurally different from natural sounds, and could cause organisms living in noisy urban areas to modify their vocal communication. We compared te... Read More about Comparing contact calling between black tufted-ear marmosets (Callithrix penicillata) in a noisy urban environment and in a quiet forest.

Comparing contact calling between black tufted-ear marmosets (Callithrix penicillata) in a noisy urban environment and in a quiet forest (2017)
Journal Article
quiet forest. International Journal of Primatology, 38(6), 1130-1137. https://doi.org/10.1007/s10764-017-0002-x

All habitats have some level of noise but anthropogenic sounds such as those produced by traffic are structurally different from natural sounds, and could cause organisms living in noisy urban areas to modify their vocal communication. We compared te... Read More about Comparing contact calling between black tufted-ear marmosets (Callithrix penicillata) in a noisy urban environment and in a quiet forest.

Social spacing of the montane lizard Tropidurus montanus (2017)
Journal Article
Galdino, C., Ventura, S., Lisboa, C., & Young, R. (2017). Social spacing of the montane lizard Tropidurus montanus. Herpetological journal, 27(4), 333-338

The way in which individuals use their surrounding space can be key to understanding species’ sociobiology. We studied the social spacing of the lizard Tropidurus montanus. Males were found to have larger home ranges than females. Male body size was... Read More about Social spacing of the montane lizard Tropidurus montanus.

Mining noise affects loud call structures and emission patterns of wild black-fronted titi monkeys (2017)
Journal Article
of wild black-fronted titi monkeys. Primates, 59(1), 89-97. https://doi.org/10.1007/s10329-017-0629-4

Anthropogenic noise pollution is increasing and can constrain acoustic communication in animals. Our aim was to investigate if the acoustic parameters of loud calls and their diurnal pattern in the black-fronted titi monkey (Callicebus nigrifrons... Read More about Mining noise affects loud call structures and emission patterns of wild black-fronted titi monkeys.

Medium/Long wavelength sensitive opsin diversity in Pitheciidae (2017)
Journal Article
Goulart, V., Boubli, J., & Young, R. (2017). Medium/Long wavelength sensitive opsin diversity in Pitheciidae. Scientific reports, 7(7737), https://doi.org/10.1038/s41598-017-08143-2

New World primates feature a complex colour vision system. Most species have polymorphic colour vision where males have a dichromatic colour perception and females can be either ichromatic or trichromatic. The adaptive value of high allelic diversity... Read More about Medium/Long wavelength sensitive opsin diversity in Pitheciidae.

The tonic immobility test : do wild and captive golden mantella frogs (Mantella aurantiaca) have the same response? (2017)
Journal Article
have the same response?. PLoS ONE, 12(7), https://doi.org/10.1371/journal.pone.0181972

Adaptations to captivity that reduce fitness are one of many reasons, which explain the low success rate of reintroductions. One way of testing this hypothesis is to compare an important behavioural response in captive and wild members of the same sp... Read More about The tonic immobility test : do wild and captive golden mantella frogs (Mantella aurantiaca) have the same response?.

Neglecting the call of the wild : captive frogs like the sound of their own voice (2017)
Journal Article
like the sound of their own voice. PLoS ONE, 12(7), https://doi.org/10.1371/journal.pone.0181931

Acoustic communication is highly influential in the expression of social behavior by anuran amphibians, transmitting information about the individual's physical condition and motivation. We studied the phonotactic (approach movements) responses of wi... Read More about Neglecting the call of the wild : captive frogs like the sound of their own voice.

Anthropogenic noise reduces bird species richness and diversity in urban parks (2017)
Journal Article
and diversity in urban parks. Ibis, 159(3), 638-646. https://doi.org/10.1111/ibi.12481

Anthropogenic noise is becoming more prevalent in the world and has been shown to affect many animal species, including birds. The impact of such noise was measured in Neotropical urban parks to assess how the noise affects avifauna diversity and spe... Read More about Anthropogenic noise reduces bird species richness and diversity in urban parks.

Street trees reduce the negative effects of urbanization on birds (2017)
Journal Article
urbanization on birds. PLoS ONE, 12(e01744), https://doi.org/10.1371/journal.pone.0174484

The effects of streets on biodiversity is an important aspect of urban ecology, but it has been neglected worldwide. Several vegetation attributes (e.g. street tree density and diversity) have important effects on biodiversity and ecological proces... Read More about Street trees reduce the negative effects of urbanization on birds.

Human commercial models’ eye colour shows negative frequency-dependent selection (2016)
Journal Article
frequency-dependent selection. PLoS ONE, 11(12), e0168458. https://doi.org/10.1371/journal.pone.0168458

In this study we investigated the eye colour of human commercial models registered in the UK (400 female and 400 male) and Brazil (400 female and 400 male) to test the hypothesis that model eye colour frequency was the result of negative frequency de... Read More about Human commercial models’ eye colour shows negative frequency-dependent selection.

Environmental enrichment effect on fecal glucocorticoid metabolites and captive maned wolf (chrysocyon brachyurus) behavior (2016)
Journal Article
Coelho, C., de Azevedo, C., Guimarães, M., & Young, R. (2016). Environmental enrichment effect on fecal glucocorticoid metabolites and captive maned wolf (chrysocyon brachyurus) behavior. Journal of Applied Animal Welfare Science, 19(4), 353-362. https://doi.org/10.1080/10888705.2016.1161512

Environmental enrichment is a technique that may reduce the stress of nonhuman animals in captivity. Stress may interfere with normal behavioral expression and affect cognitive decision making. Noninvasive hormonal studies can provide important info... Read More about Environmental enrichment effect on fecal glucocorticoid metabolites and captive maned wolf (chrysocyon brachyurus) behavior.

Do apprehended saffron finches know how to survive predators? A careful look at reintroduction candidates (2016)
Journal Article
Dutra, L., Young, R., Galdino, C., & Vasconcellos, A. (2016). Do apprehended saffron finches know how to survive predators? A careful look at reintroduction candidates. Behavioural Processes, 125, 6-12. https://doi.org/10.1016/j.beproc.2016.01.007

Wildlife trafficking is a major factor contributing to the reduction of biological diversity. In Brazil, traf-ficked animals are apprehended by environmental agencies and released in the wild. The maintenance ofwild animals in captivity may jeopardiz... Read More about Do apprehended saffron finches know how to survive predators? A careful look at reintroduction candidates.

Evaluating patterns of human–reptile conflicts in an urban environment (2016)
Journal Article
environment. Wildlife Research, 42(7), https://doi.org/10.1071/WR15143

Context. Reptiles, especially snakes, can cause a fear reaction in the public and are, therefore, a good model to examine human–wildlife conflicts. Human city dwellers often respond to the presence of snakes or other reptiles by calling out the respo... Read More about Evaluating patterns of human–reptile conflicts in an urban environment.

The green infrastructure of a highly-urbanized neotropical city : the role of the urban vegetation in preserving native biodiversity (2016)
Journal Article
Pena, J., Magalhaes, D., Mourao, A., Young, R., & Rodrigues, M. (2016). The green infrastructure of a highly-urbanized neotropical city : the role of the urban vegetation in preserving native biodiversity. Revista da Sociedade Brasileira de Arborização Urbana, 11(4), 66-78

The composition of the urban vegetation that comprises the green infrastructure of a highly urbanized Neotropical city was mapped and described in order to assess how it can be used to preserve and maintain urban biodiversity. Supervised classificati... Read More about The green infrastructure of a highly-urbanized neotropical city : the role of the urban vegetation in preserving native biodiversity.

The impact of noise from open-cast mining on Atlantic forest biophony (2015)
Journal Article
Duarte, M., Sousa-Lima, R., Young, R., Farina, A., Vasconcelos, M., Rodrigues, M., & Pieretti, N. (2015). The impact of noise from open-cast mining on Atlantic forest biophony. Biological Conservation, 191, 623-631. https://doi.org/10.1016/j.biocon.2015.08.006

The sound produced by human-made machinery (technophony) is known to exert negative effects on animal communication and well-being. Mining is an important economic activity in Brazil, which is often conducted close to forested areas and produces a... Read More about The impact of noise from open-cast mining on Atlantic forest biophony.

Good neighbours : distribution of black-tufted marmoset (Callithrix penicillata) in an urban environment (2015)
Journal Article
(Callithrix penicillata) in an urban environment. Wildlife Research, 42(7), https://doi.org/10.1071/WR14148

Context: Primates are one of the most charismatic and widely studied vertebrate groups. However, the study of new world primates in green patches within urban areas has been neglected. Such primates have been viewed as a source of human–animal conf... Read More about Good neighbours : distribution of black-tufted marmoset (Callithrix penicillata) in an urban environment.

Determining temporal sampling schemes for passive acoustic studies in different tropical ecosystems (2015)
Journal Article
acoustic studies in different tropical ecosystems. Tropical Conservation Science, 8(1), 215-234. https://doi.org/10.1177/194008291500800117

Among different approaches to exploring and describing the ecological complexity of natural environments, soundscape analyses have recently provided useful proxies for understanding and interpreting dynamic patterns and processes in a landscape. Nev... Read More about Determining temporal sampling schemes for passive acoustic studies in different tropical ecosystems.

Do wild titi monkeys show empathy? (2014)
Journal Article
Clyvia, A., Kaizer, M., Vale, R., Young, R., & Casar, C. (2014). Do wild titi monkeys show empathy?. Primate Biology, 1, 23-28. https://doi.org/10.5194/pb-1-23-2014

We observed a putative case of empathy among wild black-fronted titi monkeys (Callicebus nigrifrons) from two different groups (D and R). In over 10 years of behavioural observations of five habituated groups of this species, only low levels of int... Read More about Do wild titi monkeys show empathy?.

Demographic and growth analysis of broad snouted caiman (Caiman latirostris) in a disturbed environment in southeastern Brazil (2014)
Journal Article
southeastern Brazil. Herpetological journal, 24(4), 223-228

Crocodilian life history traits exhibit strong size and age dependence, which is determined, ultimately, by how fast individuals grow. Crocodilian population dynamics are dependent on environmental conditions such as local temperatures and hydrology... Read More about Demographic and growth analysis of broad snouted caiman (Caiman latirostris) in a disturbed environment in southeastern Brazil.

Exercising for food : bringing the laboratory closer to nature (2014)
Journal Article
Fonseca, I., Passos, R., Araujo, F., Lima, M., Lacerada, D., Pires, W., …Rodrigues, L. (2014). Exercising for food : bringing the laboratory closer to nature. Journal of Experimental Biology, 217, 3274-3281. https://doi.org/10.1242/jeb.108191

Traditionally, exercise physiology experiments have borne little resemblance to how animals express physical activity in the wild. In this experiment, 15 adult male rats were divided into three equalsized groups: exercise contingent (CON), non-exe... Read More about Exercising for food : bringing the laboratory closer to nature.

Rapid animal welfare assessment : an archaeological approach (2014)
Journal Article
Schork, I., & Young, R. (2014). Rapid animal welfare assessment : an archaeological approach. Biology Letters, 10, 20140390. https://doi.org/10.1098/rsbl.2014.0390

The welfare of an individual depends on its capacity to overcome suboptimal conditions in its environment; otherwise, its physical and psychological health becomes compromised. A situation that clearly indicates lack of control of the environment... Read More about Rapid animal welfare assessment : an archaeological approach.

Can enrichment make Brazilian tapir spend more time on view to the public? (2014)
Journal Article
more time on view to the public?. Journal of Applied Animal Welfare Science, 18, 74-81. https://doi.org/10.1080/10888705.2014.945177

One common visitor complaint in zoos is that the nonhuman animals are not visible. This problem needs to be resolved without compromising the animals’ welfare; environmental enrichment could solve the problem. This study investigated whether enrich... Read More about Can enrichment make Brazilian tapir spend more time on view to the public?.

Behavioural and ecological aspects of black tufted-ear marmosets, Callithrix penicillata (Geoffroy, 1812) (Primates: Callitrichidae) in a semi- urban environment (2014)
Journal Article
Nogueira, M., Santos, D., Henriques, M., Duarte, L., & Young, R. J. (2014). Behavioural and ecological aspects of black tufted-ear marmosets, Callithrix penicillata (Geoffroy, 1812) (Primates: Callitrichidae) in a semi- urban environment. #Journal not on list, 13, 37-46

O mico-estrela (Callithrix penicillata) é uma pequena espécie de primata neotropical que vive em vários tipos de ambientes como Cerrado e Mata Atlântica, podendo também ocupar áreas urbanas. Pesquisas já mostraram que a disponibilidade de recurso ali... Read More about Behavioural and ecological aspects of black tufted-ear marmosets, Callithrix penicillata (Geoffroy, 1812) (Primates: Callitrichidae) in a semi- urban environment.

Enriching Tortoises: assessing color preference (2014)
Journal Article
Passos, L., Melo, H., & Young, R. (2014). Enriching Tortoises: assessing color preference. Journal of Applied Animal Welfare Science, 17(3), 274-281. https://doi.org/10.1080/10888705.2014.917556

Environmental enrichment is a principle that is used to enhance the quality of care for nonhuman animals in captivity. To achieve this, it is necessary to understand the animal’s needs. This study focused on color preference to provide food stimuli... Read More about Enriching Tortoises: assessing color preference.

Behavioural and ecological aspects of black tufted-ear marmosets, Callithrix penicillata (Geoffroy, 1812) (Primates: Callitrichidae) in a semi-urban environment (2014)
Journal Article
Santos, M., Duarte, M., & Young, R. (2014). Behavioural and ecological aspects of black tufted-ear marmosets, Callithrix penicillata (Geoffroy, 1812) (Primates: Callitrichidae) in a semi-urban environment. Revista de Etologia (Impresso), 13(1), 37-46

The black tufted-ear marmoset (Callithrix penicillata) is a small Neotropical primate, which lives in various types of environments from Cerrado (Brazilian savannah), Atlantic forest to urban areas. Research shows that food availability influences ho... Read More about Behavioural and ecological aspects of black tufted-ear marmosets, Callithrix penicillata (Geoffroy, 1812) (Primates: Callitrichidae) in a semi-urban environment.

Zoo visitor effect on mammal behaviour : does noise matter? (2014)
Journal Article
Quadros, S., Goulart, V., Passos, L., Vecci, M., & Young, R. (2014). Zoo visitor effect on mammal behaviour : does noise matter?. Applied Animal Behaviour Science, 156, 78-84. https://doi.org/10.1016/j.applanim.2014.04.002

The zoo visitor effect is the change in animal behaviour and physiology in response to the presence of a viewing public. It is thought to result from, amongst other things, visitor generated sound (i.e., noise), but this hypothesis has never been e... Read More about Zoo visitor effect on mammal behaviour : does noise matter?.

Titi monkey call sequences vary with predator location and type (2013)
Journal Article
Casar, C., Zuberbulher, K., Young, R., & Byrne, R. (2013). Titi monkey call sequences vary with predator location and type. Biology Letters, 9(5), 20130535. https://doi.org/10.1098/rsbl.2013.0535

Animal alarm calls can encode information about a predator’s category, size, distance or threat level. In non-human primates, alarm calls typically refer to broad classes of disturbances, in some instances to specific predators. Here, we present t... Read More about Titi monkey call sequences vary with predator location and type.

Comportamento de caça da coruja buraqueira, Athene cunicularia (Molina, 1782) (Aves: Strigiformes) em ambiente urbano em Belo Horizonte, Minas Gerais, Brasil (2013)
Journal Article
Specht, G. V. A., Gonçalves, G. L., & Young, R. J. (2013). Comportamento de caça da coruja buraqueira, Athene cunicularia (Molina, 1782) (Aves: Strigiformes) em ambiente urbano em Belo Horizonte, Minas Gerais, Brasil. #Journal not on list, 11(1), 17-20. https://doi.org/10.35699/2675-5327.2013.23835

The burrowing-owl, Athene cunicularia (Molina, 1782) has a wide distribution, which extends from western North America to southern South America. They are an opportunistic plunderer species preying on insects and small mammals. Data on hunting tactic... Read More about Comportamento de caça da coruja buraqueira, Athene cunicularia (Molina, 1782) (Aves: Strigiformes) em ambiente urbano em Belo Horizonte, Minas Gerais, Brasil.

Effect of passage through the gut of Greater Rheas on the germination of seeds of plants of cerrado and caatinga grasslands (2013)
Journal Article
de Azevedo, C. S., da Silva, M. C., Teixeira, T. P., Young, R. J., Garcia, Q. S., & Rodrigues, M. (2013). Effect of passage through the gut of Greater Rheas on the germination of seeds of plants of cerrado and caatinga grasslands. Emu, 113(2), 177-182. https://doi.org/10.1071/mu12070

Frugivorous seed-dispersers play an important role in the maintenance or regeneration of plant populations and communities. Greater Rheas are potentially one of the most import dispersers of seeds in South American grassland biomes owing to their cap... Read More about Effect of passage through the gut of Greater Rheas on the germination of seeds of plants of cerrado and caatinga grasslands.

Selfish behaviour as an anti-predator response in schooling fish? (2013)
Journal Article
Goulart, V. D. R., & Young, R. J. (2013). Selfish behaviour as an anti-predator response in schooling fish?. Animal Behaviour, 86(2), 443-450. https://doi.org/10.1016/j.anbehav.2013.05.041

One widely acknowledged benefit of group living is an increase in the efficiency of predator avoidance. Experiments have demonstrated a variety of mechanisms involved, such as ‘the selfish herd’. In this experiment we exposed groups of two-spot astya... Read More about Selfish behaviour as an anti-predator response in schooling fish?.

Can captive-bred American bullfrogs learn to avoid a model avian predator? (2013)
Journal Article
Teixeira, B., & Young, R. (2013). Can captive-bred American bullfrogs learn to avoid a model avian predator?. Acta ethologica, 17(1), 15-22. https://doi.org/10.1007/s10211-013-0150-8

Animals that are isolated from their natural predators may lose the ability to express antipredator behavior. The aim of this study was to test whether it would be possible to train captive-bred North American bullfrogs (Rana catesbeiana) to avoid a... Read More about Can captive-bred American bullfrogs learn to avoid a model avian predator?.

Visitor influence on the behavior of captive greater rheas (Rhea americana, Rheidae Aves) (2012)
Journal Article
de Azevedo, C., Lima, M., da Silva, V., Young, R., & Rodrigues, M. (2012). Visitor influence on the behavior of captive greater rheas (Rhea americana, Rheidae Aves). Journal of Applied Animal Welfare Science, 15(2), https://doi.org/10.1080/10888705.2012.624895

Visitors can affect and reduce the welfare of nonhuman animals. The Belo Horizonte Zoo, Brazil, had a group of greater rheas intended for reintroduction to the wild. Because this group received public visitation, evaluating its effect on the birds' b... Read More about Visitor influence on the behavior of captive greater rheas (Rhea americana, Rheidae Aves).

Using environmental enrichment to reduce the expression of abnormal behaviours in Greater rheaRhea americanaat Belo Horizonte Zoo: Short Report: Belo Horizonte Zoo: Greater Rhea: Environmental Enrichment & Behavioural Changes (2012)
Journal Article
de Azevedo, C. S., Lima, M. F. F., Cipreste, C. F., Young, R. J., & Rodrigues, M. (2013). Using environmental enrichment to reduce the expression of abnormal behaviours in Greater rheaRhea americanaat Belo Horizonte Zoo: Short Report: Belo Horizonte Zoo: Greater Rhea: Environmental Enrichment & Behavioural Changes. International Zoo Yearbook, 47(1), 163-170. https://doi.org/10.1111/j.1748-1090.2012.00195.x

Animals kept by zoos may express abnormal behaviours that are indicators of poor welfare. Environmental enrichment is a technique of providing items to animals that stimulate the expression of normal behaviours. The aim of this study was to evaluate... Read More about Using environmental enrichment to reduce the expression of abnormal behaviours in Greater rheaRhea americanaat Belo Horizonte Zoo: Short Report: Belo Horizonte Zoo: Greater Rhea: Environmental Enrichment & Behavioural Changes.

Using environmental enrichment to reduce the expression of abnormal behaviours in Greater rhea Rhea americana at Belo Horizonte Zoo (2012)
Journal Article
de Azevedo, C., Lima, M., Cipreste, C., Young, R., & Rodrigues, M. (2013). Using environmental enrichment to reduce the expression of abnormal behaviours in Greater rhea Rhea americana at Belo Horizonte Zoo. International Zoo Yearbook, 47(1), 163-170. https://doi.org/10.1111/j.1748-1090.2012.00195.x

Animals kept by zoos may express abnormal behaviours that are indicators of poor welfare. Environmental enrichment is a technique of providing items to animals that stimulate the expression of normal behaviours. The aim of this study was to evaluate... Read More about Using environmental enrichment to reduce the expression of abnormal behaviours in Greater rhea Rhea americana at Belo Horizonte Zoo.

Evidence for semantic communication in titi monkey alarm calls (2012)
Journal Article
Casar, C., Byrne, R., Hoppitt, W., Young, R., & Zuberbuhler, K. (2012). Evidence for semantic communication in titi monkey alarm calls. Animal Behaviour, 84(2), 405-411. https://doi.org/10.1016/j.anbehav.2012.05.010

Black-fronted titi monkeys, Callicebus nigrifrons, produce acoustically distinct vocalizations in response to several predator species. Compared to other primates, the calls are remarkably quiet, high-pitched and structurally simple, suggesting that... Read More about Evidence for semantic communication in titi monkey alarm calls.

The welfare of an unwanted guest in an urban environment: the case of the white-eared opossum (Didelphis albiventris) (2012)
Journal Article
Sousa, C., Teixeria, C., & Young, R. (2012). The welfare of an unwanted guest in an urban environment: the case of the white-eared opossum (Didelphis albiventris). Animal Welfare Journal, 21(2), https://doi.org/10.7120/09627286.21.2.177

One major problem facing wildlife is urbanisation, and the increasing contact between human city dwellers and animals. In this study, we investigated the problems of urban opossums (Didelphis albiventris), through the analysis involving responses to... Read More about The welfare of an unwanted guest in an urban environment: the case of the white-eared opossum (Didelphis albiventris).

Does people’s knowledge about an endangered bird species differ between rural and urban communities? The case of the Greater Rhea (Rhea americana, Rheidae) in Minas Gerais, Brazil (2012)
Journal Article
de Azevedo, C., Silva, K., Ferraz, J., Tinoco, H., Young, R., & Rodrigues, M. (2012). Does people’s knowledge about an endangered bird species differ between rural and urban communities? The case of the Greater Rhea (Rhea americana, Rheidae) in Minas Gerais, Brazil. #Journal not on list, 20(47), 8-18

Failure of captive-born greater rheas (Rhea americana, Rheidae, Aves) to discriminate between predator and nonpredator models (2012)
Journal Article
de Azevedo, C., Young, R., & Rodrigues, M. (2012). Failure of captive-born greater rheas (Rhea americana, Rheidae, Aves) to discriminate between predator and nonpredator models. Acta ethologica, 15, 179-185. https://doi.org/10.1007/s10211-012-0124-2

The capacity to recognize and respond to predators can be lost by captive animals. Habituation to humans caused by the captive environment can be transferred to other stimuli, such as predators, a situation that conservation biologists wish to avoid.... Read More about Failure of captive-born greater rheas (Rhea americana, Rheidae, Aves) to discriminate between predator and nonpredator models.

The diet of wild black-fronted titi monkeys Callicebus nigrifrons during a bamboo masting year (2012)
Journal Article
los Santos, G., Galvao, C., & Young, R. (2012). The diet of wild black-fronted titi monkeys Callicebus nigrifrons during a bamboo masting year. Primates, 53, 265-272. https://doi.org/10.1007/s10329-012-0295-5

Black-fronted titi monkeys, Callicebus nigrifrons, are endemic primates of the Atlantic forest of Brazil, and little is known about their diet and how it is affected by seasonal changes. The aim of this study is to analyze the diet of C. nigrifrons d... Read More about The diet of wild black-fronted titi monkeys Callicebus nigrifrons during a bamboo masting year.

The alarm call system of wild black-fronted titi monkeys, Callicebus nigrifrons (2012)
Journal Article
Casar, C., Byrne, R., Young, R., & Zuberbuhler, K. (2012). The alarm call system of wild black-fronted titi monkeys, Callicebus nigrifrons. Behavioral Ecology and Sociobiology, 66, 653-667. https://doi.org/10.1007/s00265-011-1313-0

Upon encountering predators, many animals produce specific vocalisations that alert others and sometimes dissuade the predators from hunting. Callicebus monkeys are known for their large vocal repertoire, but little is known about the function and me... Read More about The alarm call system of wild black-fronted titi monkeys, Callicebus nigrifrons.

Feeding and social behavior of the piabanha, Brycon devillei (Castelnau, 1855)(Characidae: Bryconinae) in the wild, with a note on following behavior (2011)
Journal Article
Azevedo, P., Melo, R., & Young, R. (2011). Feeding and social behavior of the piabanha, Brycon devillei (Castelnau, 1855)(Characidae: Bryconinae) in the wild, with a note on following behavior. #Journal not on list, 9(4), https://doi.org/10.1590/S1679-62252011005000046

Knowledge concerning the behavior of wild freshwater fishes in Brazil is restricted to a few studies, despite such studies being able to answer fundamental questions about conservation. Species of Brycon are amongst the most threatened in the Neotrop... Read More about Feeding and social behavior of the piabanha, Brycon devillei (Castelnau, 1855)(Characidae: Bryconinae) in the wild, with a note on following behavior.

Designing laboratory marmoset housing: What can we learn from urban marmosets? (2011)
Journal Article
Duarte, M., Goulart, V., & Young, R. (2012). Designing laboratory marmoset housing: What can we learn from urban marmosets?. Applied Animal Behaviour Science, 137(3-4), 127-136. https://doi.org/10.1016/j.applanim.2011.11.013

How to house animals in captivity, so as to maximise their level of well-being, is one of the greatest practical challenges facing animal welfare scientists. Laboratory animal housing can, necessarily, be very restrictive in terms of the facilities b... Read More about Designing laboratory marmoset housing: What can we learn from urban marmosets?.

Behavioral responses of maned wolves (Chrysocyon brachyurus, Canidae) to different categories of environmental enrichment stimuli and their implications for successful reintroduction (2011)
Journal Article
Coelho, C., de Azevedo, C., & Young, R. (2012). Behavioral responses of maned wolves (Chrysocyon brachyurus, Canidae) to different categories of environmental enrichment stimuli and their implications for successful reintroduction. Zoo Biology, 31(4), 453-469. https://doi.org/10.1002/zoo.20410

The maned wolf (Chrysocyon brachyurus, Illiger, 1815, Canidae) is a threatened species that inhabits the cerrados of Brazil, Argentina, Peru, Bolivia, Paraguay, and Uruguay. Captive maned wolves could be potentially used in reintroduction programs fo... Read More about Behavioral responses of maned wolves (Chrysocyon brachyurus, Canidae) to different categories of environmental enrichment stimuli and their implications for successful reintroduction.

Noisy human neighbours affect where urban monkeys live (2011)
Journal Article
Duarte, M., Vecci, M., Hirsch, A., & Young, R. (2011). Noisy human neighbours affect where urban monkeys live. Biology Letters, 7(6), https://doi.org/10.1098/rsbl.2011.0529

Urban areas and many natural habitats are being dominated by a new selection pressure: anthropogenic noise. The ongoing expansion of urban areas, roads and airports throughout the world makes the noise almost omnipresent. Urbanization and the increas... Read More about Noisy human neighbours affect where urban monkeys live.

Human--marmoset interactions in a city park (2011)
Journal Article
Leite, G., Duarte, M., & Young, R. (2011). Human--marmoset interactions in a city park. Applied Animal Behaviour Science, 132(3-4), 187-192. https://doi.org/10.1016/j.applanim.2011.03.013

Urban wildlife, frequently, comes into contact with human city dwellers and these interactions can be viewed positively or negatively by people. In the city of Belo Horizonte (Minas Gerais, Brazil) many city parks have groups of black-tufted marmoset... Read More about Human--marmoset interactions in a city park.

Cortisol Circadian Rhythm Ratio: A Simple Method to Detect Stressed Horses at Higher Risk of Colic? (2011)
Journal Article
Leal, B., Alves, G., Douglas, R., Bringel, B., Young, R., Haddad, J., …Faleiros, R. (2011). Cortisol Circadian Rhythm Ratio: A Simple Method to Detect Stressed Horses at Higher Risk of Colic?. Journal of Equine Veterinary Science, 31(4), 188-190. https://doi.org/10.1016/j.jevs.2011.02.005

With the hypothesis that police horses with abnormal cortisol circadian rhythm (CCR) had more chance to develop colic, the aim of this study was to determine the CCR ratio in horses subjected to different housing and work conditions and to associate... Read More about Cortisol Circadian Rhythm Ratio: A Simple Method to Detect Stressed Horses at Higher Risk of Colic?.

Sleeping site selection by urban marmosets (Callithrix penicillata) under conditions of exceptionally high predator density (2010)
Journal Article
Duarte, M., & Young, R. (2011). Sleeping site selection by urban marmosets (Callithrix penicillata) under conditions of exceptionally high predator density. International Journal of Primatology, 32, 329-334. https://doi.org/10.1007/s10764-010-9468-5

Domestic cats are known to kill small mammals and birds, and represent a predatory threat to all small wildlife. We investigated whether a high cat density affects the choice of sleeping sites of urban marmosets (Callithrix penicillata). One group of... Read More about Sleeping site selection by urban marmosets (Callithrix penicillata) under conditions of exceptionally high predator density.

Role of Brazilian zoos in ex situ bird conservation: from 1981 to 2005 (2010)
Journal Article
Azevedo, C., Young, R., & Rodrigues, M. (2011). Role of Brazilian zoos in ex situ bird conservation: from 1981 to 2005. Zoo Biology, 30(6), 655-671. https://doi.org/10.1002/zoo.20361

Zoos may play an important role in conservation when they maintain and breed large numbers of animals that are threatened with extinction. Bird conservation is in a privileged situation owing to the extensive biological information available about th... Read More about Role of Brazilian zoos in ex situ bird conservation: from 1981 to 2005.

Time--activity budget of greater rheas (Rhea americana, Aves) on a human-disturbed area: the role of habitat, time of the day, season and group size (2010)
Journal Article
de Azevedo, C., Ferraz, J., Tinoco, H., Young, R., & Rodrigues, M. (2010). Time--activity budget of greater rheas (Rhea americana, Aves) on a human-disturbed area: the role of habitat, time of the day, season and group size. Acta ethologica, 13, 109-117. https://doi.org/10.1007/s10211-010-0080-7

The aim of this study was to evaluate activity–time budget, habitat use and how seasonality and group size influence the expression of greater rhea behaviours. Greater rheas are threatened South American birds; habitat loss, predation and hunting are... Read More about Time--activity budget of greater rheas (Rhea americana, Aves) on a human-disturbed area: the role of habitat, time of the day, season and group size.

Fishing for gaps in science: a bibliographic analysis of Brazilian freshwater ichthyology from 1986 to 2005 (2010)
Journal Article
Azevedo, P., Mesquita, F., & Young, R. (2010). Fishing for gaps in science: a bibliographic analysis of Brazilian freshwater ichthyology from 1986 to 2005. Journal of Fish Biology, 76(9), 2177-2193. https://doi.org/10.1111/j.1095-8649.2010.02668.x

To investigate Brazilian freshwater ichthyology, from 1986 to 2005, a bibliometric analysis was conducted using abstracts downloaded from The Web of Science database searching for the keywords ‘fish’, ‘pisces’, ‘teleostei’ and the address field havin... Read More about Fishing for gaps in science: a bibliographic analysis of Brazilian freshwater ichthyology from 1986 to 2005.

How to Develop a Zoo-Based Environmental Enrichment Program: Incorporating Environmental Enrichment into Exhibits (2010)
Journal Article
Cipreste, C., de Azevedo, C., & Young, R. (2010). How to Develop a Zoo-Based Environmental Enrichment Program: Incorporating Environmental Enrichment into Exhibits. #Journal not on list,

Research, conservation, leisure, and education are the main goals of zoos. To achieve these aims, zoos need to maintain a high level of animal welfare. One action undertaken to improve the psychological aspects of the captive animal’s life has bee... Read More about How to Develop a Zoo-Based Environmental Enrichment Program: Incorporating Environmental Enrichment into Exhibits.

Analysis of callouts made in relation to wild urban marmosets (Callithrix penicillata) and their implications for urban species management (2010)
Journal Article
Goulart, V., Teixeira, C., & Young, R. (2010). Analysis of callouts made in relation to wild urban marmosets (Callithrix penicillata) and their implications for urban species management. European Journal of Wildlife Research, 56, 641-649. https://doi.org/10.1007/s10344-009-0362-4

In this study, we investigated what problems urban marmosets (Callithrix penicillata) face in a city environment through the analysis of responses to callouts (N = 348) made by the environmental police of Belo Horizonte, Minas Gerais, Brazil, in the... Read More about Analysis of callouts made in relation to wild urban marmosets (Callithrix penicillata) and their implications for urban species management.

GAPs in the study of zoo and wild animal welfare (2009)
Journal Article
Goulart, V., Azevedo, P., van de Schepop, J., Teixeira, C., Barcante, L., Azevedo, C., & Young, R. (2009). GAPs in the study of zoo and wild animal welfare. Zoo Biology, 28(6), 561-573. https://doi.org/10.1002/zoo.20285

To investigate the science of animal welfare for zoo and wild animals in the period from 1966 to 2007, we conducted a bibliometric analysis of abstracts downloaded from The Web of Science© database using the keyword combination “Animal welfare, Zoo*... Read More about GAPs in the study of zoo and wild animal welfare.

Genetic composition, population structure and phylogeography of the loggerhead sea turtle: colonization hypothesis for the Brazilian rookeries (2009)
Journal Article
Reis, E., Soares, L., Vargas, S., Santos, F., Young, R., Bjorndal, K., …Lobo-Hajdu, G. (2010). Genetic composition, population structure and phylogeography of the loggerhead sea turtle: colonization hypothesis for the Brazilian rookeries. Conservation Genetics, 11, 1467-1477. https://doi.org/10.1007/s10592-009-9975-0

The loggerhead sea turtle, Caretta caretta, is the most common species of sea turtle nesting in Brazil and is listed as endangered by the IUCN. Our study characterizes the genetic structure of loggerheads in Brazil based on mitochondrial DNA control... Read More about Genetic composition, population structure and phylogeography of the loggerhead sea turtle: colonization hypothesis for the Brazilian rookeries.

First observations of nest attendance behavior by wild maned wolves, Chrysocyon brachyurus (2009)
Journal Article
Melo, L., Sabato, M., Magni, E., Young, R., & Coelho, C. (2009). First observations of nest attendance behavior by wild maned wolves, Chrysocyon brachyurus. Zoo Biology, 28(1), 69-74. https://doi.org/10.1002/zoo.20213

In many species of canids the male's role in reproduction extends to providing extensive or some parental care to his offspring. Maned wolves are a monogamous canid species whose males have been observed providing parental care to their offspring in... Read More about First observations of nest attendance behavior by wild maned wolves, Chrysocyon brachyurus.

Estimating the diet of urban birds: the problems of anthropogenic food and food digestibility (2008)
Journal Article
Ottoni, I., de Oliveria, F., & Young, R. (2009). Estimating the diet of urban birds: the problems of anthropogenic food and food digestibility. Applied Animal Behaviour Science, 117(1-2), 42-46. https://doi.org/10.1016/j.applanim.2008.11.002

A variety of methods exist for assessing the diets of wild birds, each of which has its strengths and weaknesses. The objective of this study was to compare diet data collected in parallel by behavioural observations and faecal analysis from an urban... Read More about Estimating the diet of urban birds: the problems of anthropogenic food and food digestibility.

Comparison of methods for obtaining population estimates for Red Squirrels in relation to damage due to bark stripping. (2008)
Journal Article
Bryce, J., Pritchard, S., Waran, N., & Young, R. (2008). Comparison of methods for obtaining population estimates for Red Squirrels in relation to damage due to bark stripping. Mammal Review, 27(4), 165-170. https://doi.org/10.1111/j.1365-2907.1997.tb00445.x

The relation between population density and the extent of damage incurred by bark stripping behaviour was investigated in a Scots Pine plantation known to have suffered considerable damage. Population density was estimated by three non-interventionis... Read More about Comparison of methods for obtaining population estimates for Red Squirrels in relation to damage due to bark stripping..

A case of adoption in a wild group of black-fronted titi monkeys (Callicebus nigrifrons) (2007)
Journal Article
Casar, C., & Young, R. (2008). A case of adoption in a wild group of black-fronted titi monkeys (Callicebus nigrifrons). Primates, 49, 146-148. https://doi.org/10.1007/s10329-007-0066-x

We observed a case of infant adoption in an unprovisioned group of wild black-fronted titi monkeys (Callicebus nigrifrons). During our long-term field study we noticed that an infant had moved from one of our study groups (“Desbotado”) to another (“R... Read More about A case of adoption in a wild group of black-fronted titi monkeys (Callicebus nigrifrons).

Observed case of maternal infanticide in a wild group of black-fronted titi monkeys (Callicebus nigrifrons) (2007)
Journal Article
Casar, C., Franco, E., Soares, G., & Young, R. (2007). Observed case of maternal infanticide in a wild group of black-fronted titi monkeys (Callicebus nigrifrons). Primates, 49, 143-145. https://doi.org/10.1007/s10329-007-0067-9

A maternal infanticide was observed in a group of unprovisioned wild black-fronted titi monkeys (Callicebus nigrifrons). An approximately 3-day-old male infant was killed by his mother. A post-mortem revealed the infant to be clinically healthy. We c... Read More about Observed case of maternal infanticide in a wild group of black-fronted titi monkeys (Callicebus nigrifrons).

The behavioural responses of Nile tilapia (< i> Oreochromis niloticus</i>) to anti-predator training (2007)
Journal Article
Mesquita, F., & Young, R. (2007). The behavioural responses of Nile tilapia (< i> Oreochromis niloticus) to anti-predator training. Applied Animal Behaviour Science, 106(1-3), 144-154. https://doi.org/10.1016/j.applanim.2006.06.013

Globally millions of fishes are released, each year, into the wild to supplement diminishing populations. However, research indicates that less than 5% of these individuals survive, and that one of the major causes of mortality is predation. The obje... Read More about The behavioural responses of Nile tilapia (< i> Oreochromis niloticus</i>) to anti-predator training.

A preliminary study into the effectiveness of stroboscopic light as an aversive stimulus for fish (2007)
Journal Article
Mesquita, F., Godinho, H., de Azevedo, P., & Young, R. (2008). A preliminary study into the effectiveness of stroboscopic light as an aversive stimulus for fish. Applied Animal Behaviour Science, 111(3-4), 402-407. https://doi.org/10.1016/j.applanim.2007.06.014

To reduce fish mortality in nature it is often necessary to expel individuals from areas modified by humans (e.g., dams) where they could be injured or killed. We tested the effectiveness of stroboscopic light as an aversive stimulus for zebrafish (D... Read More about A preliminary study into the effectiveness of stroboscopic light as an aversive stimulus for fish.

A note on the use of GPS collars to monitor wild maned wolves< i> Chrysocyon brachyurus</i>(Illiger 1815)(Mammalia, Canidae) (2007)
Journal Article
Coelho, C., de Melo, L., Sabato, M., Rizel, D., & Young, R. (2007). A note on the use of GPS collars to monitor wild maned wolves< i> Chrysocyon brachyurus(Illiger 1815)(Mammalia, Canidae). Applied Animal Behaviour Science, 105(1-3), 259-264. https://doi.org/10.1016/j.applanim.2006.04.024

Increasingly, problems of animal conservation are being solved with the aid of technology. One recent advance in monitoring the spatial location of wild animals is the GPS collar. In this study we evaluate the use of such technology with three wild m... Read More about A note on the use of GPS collars to monitor wild maned wolves< i> Chrysocyon brachyurus</i>(Illiger 1815)(Mammalia, Canidae).

Environmental enrichment: a GAP analysis (2007)
Journal Article
de Azevedo, C., Cipreste, C., & Young, R. (2007). Environmental enrichment: a GAP analysis. Applied Animal Behaviour Science, 102(3-4), 329-343. https://doi.org/10.1016/j.applanim.2006.05.034

GAP analyses are tools used to inform us about the short-comings of a scientific area or necessities in social–economic problems. In the last 20 years, environmental enrichment as an area of scientific investigation has come of age; this can be clear... Read More about Environmental enrichment: a GAP analysis.

Socio-sexual behavior of female northern muriquis (Brachyteles hypoxanthus) (2007)
Journal Article
Possamai, C., Young, R., Mendes, S., & Strier, K. (2007). Socio-sexual behavior of female northern muriquis (Brachyteles hypoxanthus). American Journal of Primatology, 69(7), 766-776. https://doi.org/10.1002/ajp.20399

Female northern muriquis (Brachyteles hypoxanthus) are known to engage in frequent copulations with multiple partners, a pattern that in other primates has been attributed to various functions such as confusing paternity, reducing male aggression, or... Read More about Socio-sexual behavior of female northern muriquis (Brachyteles hypoxanthus).

Revisiting translocation and reintroduction programmes: the importance of considering stress (2006)
Journal Article
Teixeira, C., de Azevedo, C., Mendl, M., Cipreste, C., & Young, R. (2007). Revisiting translocation and reintroduction programmes: the importance of considering stress. Animal Behaviour, 73(1), 1-13. https://doi.org/10.1016/j.anbehav.2006.06.002

It is widely known that the adverse effects of stress must be considered in animal conservation programmes. However, a full consideration of how and where stress occurs in animal conservation programmes has not been undertaken, especially in transloc... Read More about Revisiting translocation and reintroduction programmes: the importance of considering stress.

Secret lives of maned wolves (Chrysocyon brachyurus Illiger 1815): as revealed by GPS tracking collars (2006)
Journal Article
de Melo, L., Sabato, M., Magni, E., Young, R., & Coelho, M. (2007). Secret lives of maned wolves (Chrysocyon brachyurus Illiger 1815): as revealed by GPS tracking collars. Journal of Zoology, 271(1), 27-36. https://doi.org/10.1111/j.1469-7998.2006.00176.x

The maned wolf Chrysocyon brachyurus is a nocturnal and shy species, which has proven difficult to study in the field; consequently, data about its behavioural biology are almost absent from the scientific literature. However, recent advances in glob... Read More about Secret lives of maned wolves (Chrysocyon brachyurus Illiger 1815): as revealed by GPS tracking collars.

A note on the effect of the full moon on the activity of wild maned wolves,< i> Chrysocyon brachyurus</i> (2006)
Journal Article
Sabato, M., de Melo, L., Magni, E., Young, R., & Coelho, C. (2006). A note on the effect of the full moon on the activity of wild maned wolves,< i> Chrysocyon brachyurus. Behavioural Processes, 73(2), 228-230. https://doi.org/10.1016/j.beproc.2006.05.012

It is well established in the scientific literature that animal prey species reduce their activity at times of high predation risk. In the case of nocturnal animals this occurs when there is a full moon; however, the response of predators to the chan... Read More about A note on the effect of the full moon on the activity of wild maned wolves,< i> Chrysocyon brachyurus</i>.

Behavioural responses of captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) submitted to antipredator training (2006)
Journal Article
de Azevedo, C., & Young, R. (2006). Behavioural responses of captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) submitted to antipredator training. #Journal not on list, 23(1), https://doi.org/10.1590/S0101-81752006000100010

Human activities have been diminishing greater rhea Rhea americana (Linnaeus, 1758) populations throughout their natural distribution. The reintroductions of captive-born greater rheas have been tried but without success; since the individuals reintr... Read More about Behavioural responses of captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) submitted to antipredator training.

Do captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) remember antipredator training? (2006)
Journal Article
de Azevedo, C., & Young, R. (2006). Do captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) remember antipredator training?. #Journal not on list, 23(1), https://doi.org/10.1590/S0101-81752006000100011

The antipredator training is a powerful tool now being used to help the reintroduced animals to recognise and escape from their predators. Testing the memory capacity of the animals after antipredator training is important to evaluate if the applicat... Read More about Do captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) remember antipredator training?.

Shyness and boldness in greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae): the effects of antipredator training on the personality of the birds (2006)
Journal Article
de Azevedo, C., & Young, R. (2006). Shyness and boldness in greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae): the effects of antipredator training on the personality of the birds. #Journal not on list, 23(1), https://doi.org/10.1590/S0101-81752006000100012

The shy-bold continuum is an axis of behavioural variation for some species, but the consequences of shyness and boldness in antipredatory behaviour is unknown. Bold animals have the tendency to be predated first after release in comparison to shy an... Read More about Shyness and boldness in greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae): the effects of antipredator training on the personality of the birds.

Marsupials from space: fluctuating asymmetry, geographical information systems and animal conservation (2006)
Journal Article
Teixeira, C., Hirsch, A., Perini, H., & Young, R. (2006). Marsupials from space: fluctuating asymmetry, geographical information systems and animal conservation. Proceedings of the Royal Society B: Biological Sciences, 273(1589), https://doi.org/10.1098/rspb.2005.3386

We report the development of a new quantitative method of assessing the effects of anthropogenic impacts on living beings; this method allows us to assess actual impacts and to travel backwards in time to assess impacts. In this method, we have cross... Read More about Marsupials from space: fluctuating asymmetry, geographical information systems and animal conservation.

Applying animal learning theory: Training captive animals to comply with veterinary and husbandry procedures (2004)
Journal Article
Young, R., & Cipreste, C. (2004). Applying animal learning theory: Training captive animals to comply with veterinary and husbandry procedures. Animal Welfare Journal, 13(2), 225-232. https://doi.org/10.1017/S0962728600026968

Animals within zoo environments are learning continuously: they learn signals that predict when food is going to arrive or that the presence of a certain person means that something unpleasant may happen. They may learn to control their environment a... Read More about Applying animal learning theory: Training captive animals to comply with veterinary and husbandry procedures.

Trends in the captive breeding of threatened and endangered birds in British zoos, 1988--1997 (2004)
Journal Article
Whitfort, H., & Young, R. (2004). Trends in the captive breeding of threatened and endangered birds in British zoos, 1988--1997. Zoo Biology, 23(1), 85-89. https://doi.org/10.1002/zoo.10122

The aim of this study was to assess trends in captive breeding of threatened and endangered bird species in British zoos. The measures we recorded were: 1) the total number of species held, 2) the percentage of species held that are listed in the IUC... Read More about Trends in the captive breeding of threatened and endangered birds in British zoos, 1988--1997.

Do domestic pigs in controlled environments contrafreeload? (2003)
Journal Article
Young, R., & Lawrence, A. (2003). Do domestic pigs in controlled environments contrafreeload?. Journal of Applied Animal Welfare Science, 6(4), 309-318. https://doi.org/10.1207/s15327604jaws0604_5

Many experiments report that animals will work (lever press) for food in the presence of freely available identical food. This phenomenon has attracted the attention of applied ethologists because it seems to prove that animals have a need to express... Read More about Do domestic pigs in controlled environments contrafreeload?.

A note on the climbing abilities of giant anteaters, Myrmecophaga tridactyla (Xenarthra, Myrmecophagidae) (2003)
Journal Article
Young, R., Coelho, C., & Wieloch, D. (2003). A note on the climbing abilities of giant anteaters, Myrmecophaga tridactyla (Xenarthra, Myrmecophagidae). #Journal not on list, 15, 41-46

In this note we provide seven observations of climbing behaviour by giant anteaters. Five observations were recorded in the field: three of giant anteaters climbing on top of 1.5 to 2.0 metre high termite mounds, and two observations of giant anteate... Read More about A note on the climbing abilities of giant anteaters, Myrmecophaga tridactyla (Xenarthra, Myrmecophagidae).

The efficacy of the model--rival method when compared with operant conditioning for training domestic dogs to perform a retrieval--selection task (2003)
Journal Article
McKinley, S., & Young, R. (2003). The efficacy of the model--rival method when compared with operant conditioning for training domestic dogs to perform a retrieval--selection task. Applied Animal Behaviour Science, 81(4), 357-365. https://doi.org/10.1016/S0168-1591%2802%2900277-0

Traditionally, dogs have been trained by operant conditioning techniques; that is, dogs make a desired behavioural response and this response is reinforced by a reward such as food. This type of training is very effective in training dogs to perform... Read More about The efficacy of the model--rival method when compared with operant conditioning for training domestic dogs to perform a retrieval--selection task.

Uncloaking the magician: Contributions of comparative psychology to understanding animal training (2002)
Journal Article
Young, R. (2002). Uncloaking the magician: Contributions of comparative psychology to understanding animal training. #Journal not on list, 15(2), https://doi.org/10.46867/C47G75

The training of animals is an ancient anthropogenic process; however, it was not until the birth of comparative psychology, as a science, that the mysterious ways of the animal trainer were formally explained. In this review I will discuss the contri... Read More about Uncloaking the magician: Contributions of comparative psychology to understanding animal training.

Do domestic dogs show any evidence of being able to count? (2002)
Journal Article
West, R., & Young, R. (2002). Do domestic dogs show any evidence of being able to count?. Animal Cognition, 5, 183-186. https://doi.org/10.1007/s10071-002-0140-0

Numerical competence has been demonstrated in a wide range of animal species. The level of numerical abilities shown ranges from simple relative numerousness judgements to true counting. In this study we used the preferential looking technique to... Read More about Do domestic dogs show any evidence of being able to count?.

Maracas for Macaca? Evaluation of three potential enrichment objects in two species of zoo-housed macaques (2000)
Journal Article
Vick, S., Anderson, J., & Young, R. (2000). Maracas for Macaca? Evaluation of three potential enrichment objects in two species of zoo-housed macaques. Zoo Biology, 19(3), 181-191. https://doi.org/10.1002/1098-2361%282000%2919%3A3%3C181%3A%3AAID-ZOO2%3E3.0.CO%3B2-W

One group each of Barbary macaques and stump-tailed macaques, both zoo-housed, received hard replica fruits in three experimental conditions: as empty (“unresponsive”) objects, as maracas that rattled when manipulated (“simple responsive”), and as ob... Read More about Maracas for Macaca? Evaluation of three potential enrichment objects in two species of zoo-housed macaques.

Environmental enrichment for Australian mammals (1998)
Journal Article
Murray, A., Waran, N., & Young, R. (1998). Environmental enrichment for Australian mammals. Animal Welfare Journal, 7(4), 415-425. https://doi.org/10.1017/S0962728600020959

Many of Australia's nocturnal mammals are rare or endangered in the wild. The behavioural integrity of captive populations of endangered species can be maintained through the application of environmental enrichment techniques. This study investigated... Read More about Environmental enrichment for Australian mammals.

Behavioural studies of guenons Cercopithecus spp at Edinburgh Zoo (1998)
Journal Article
Young, R. (1998). Behavioural studies of guenons Cercopithecus spp at Edinburgh Zoo. International Zoo Yearbook, 36(1), 49-56. https://doi.org/10.1111/j.1748-1090.1998.tb02883.x

Several species of guenon Cercopithecus are threatened in the wild and European Endangered Species Programmes (EEPs) have been established for the Diana monkey Cercopithecus diana diana, Roloway monkey Cercopithecus diana roloway, L'Hoest's monkey Ce... Read More about Behavioural studies of guenons Cercopithecus spp at Edinburgh Zoo.

Attitude of zoo visitors to the idea of feeding live prey to zoo animals (1997)
Journal Article
Ings, R., Waran, N., & Young, R. (1997). Attitude of zoo visitors to the idea of feeding live prey to zoo animals. Zoo Biology, 16(4), 343-347. https://doi.org/10.1002/%28SICI%291098-2361%281997%2916%3A4%3C343%3A%3AAID-ZOO6%3E3.0.CO%3B2-A

Two hundred UK zoo visitors were asked about their attitudes regarding the feeding of live prey to zoo animals. All visitors agreed with live insects being fed to lizards, providing it was done off-exhibit, and only 4% objected if done on-exhibit. Se... Read More about Attitude of zoo visitors to the idea of feeding live prey to zoo animals.

The effects of physical characteristics of the environment and feeding regime on the behavior of captive felids (1997)
Journal Article
Lyons, J., Young, R., & Deag, J. (1997). The effects of physical characteristics of the environment and feeding regime on the behavior of captive felids. Zoo Biology, 16(1), 71-83. https://doi.org/10.1002/%28SICI%291098-2361%281997%2916%3A1%3C71%3A%3AAID-ZOO8%3E3.0.CO%3B2-8

The behavior of captive felids is influenced by enclosure design and management regime. The behavior of nine felid species housed in 11 enclosures was recorded using instantaneous scan sampling. Stereotypic pacing was observed in 15 out of 19 individ... Read More about The effects of physical characteristics of the environment and feeding regime on the behavior of captive felids.

Effects of foraging enrichment on the behaviour of parrots (1997)
Journal Article
Coulton, L., Waran, N., & Young, R. (1997). Effects of foraging enrichment on the behaviour of parrots. Animal Welfare Journal, 6(4), 357-363. https://doi.org/10.1017/S0962728600020066

The purpose of this study was to enrich parrot enclosures by creating foraging opportunities appropriate for the species and to investigate the possible preference for a variable versus a constant food supply. The foraging device comprised of a lengt... Read More about Effects of foraging enrichment on the behaviour of parrots.

Effect of wood-pile feeders on the behaviour of captive bush dogs (Speothos venaticus) (1997)
Journal Article
Ings, R., Waran, N., & Young, R. (1997). Effect of wood-pile feeders on the behaviour of captive bush dogs (Speothos venaticus). Animal Welfare Journal, 6(2), 145-152. https://doi.org/10.1017/S0962728600019618

The influence of an environmental enrichment programme on the searching behaviour of separate groups of male and female bush dogs at Edinburgh Zoo was evaluated. The enrichment programme involved hiding food in specially constructed wood-piles and ot... Read More about Effect of wood-pile feeders on the behaviour of captive bush dogs (Speothos venaticus).

The effects of high and low rates of food reinforcement on the behaviour of pigs (1996)
Journal Article
Young, R., & Lawrence, A. (1996). The effects of high and low rates of food reinforcement on the behaviour of pigs. Applied Animal Behaviour Science, 49(4), 365-374. https://doi.org/10.1016/0168-1591%2896%2901052-0

The expression of one behaviour by an animal limits the amount of time available to express other behaviours. In this experiment the amount of time animals had to forage was manipulated by decreasing the rate of food reinforcement available from a fo... Read More about The effects of high and low rates of food reinforcement on the behaviour of pigs.

The effect of a moving bait on the behaviour of captive cheetahs (Acinonyx jubatus) (1996)
Journal Article
Williams, B., Waran, N., Carruthers, J., & Young, R. (1996). The effect of a moving bait on the behaviour of captive cheetahs (Acinonyx jubatus). Animal Welfare Journal, 5(3), 271-281. https://doi.org/10.1017/S0962728600018856

Members of the cat family are highly motivated to hunt, but in captivity are unable to do so for a variety of reasons. This inability to hunt may reduce their welfare. In this study we used a moving bait to stimulate and release hunting motivation in... Read More about The effect of a moving bait on the behaviour of captive cheetahs (Acinonyx jubatus).

The effect of a foraging device (a modified ‘Edinburgh Foodball’) on the behaviour of the stabled horse (1996)
Journal Article
Winskill, L., Waran, N., & Young, R. (1996). The effect of a foraging device (a modified ‘Edinburgh Foodball’) on the behaviour of the stabled horse. Applied Animal Behaviour Science, 48(1-2), 25-35. https://doi.org/10.1016/0168-1591%2895%2901021-1

Horses that are stabled under confined conditions may develop stereotypies (e.g. stall-walking), which may be caused by the inability of horses to express foraging behaviour. The objective of this study was to determine whether horses will use a fora... Read More about The effect of a foraging device (a modified ‘Edinburgh Foodball’) on the behaviour of the stabled horse.

On Comparing the Behaviour of Zoo Housed Animals with Wild Conspecifics as a Welfare Indicator, Using the Giraffe (Glraffa Camelopardalis) as a Model (1996)
Journal Article
Veasey, J., Waran, N., & Young, R. (1996). On Comparing the Behaviour of Zoo Housed Animals with Wild Conspecifics as a Welfare Indicator, Using the Giraffe (Glraffa Camelopardalis) as a Model. Animal Welfare Journal, 5(2), 139-153. https://doi.org/10.1017/S0962728600018571

To assess the validity of using wild behavioural data as a welfare indicator for zoo animals, the time budgets of 19 captive giraffe (Giraffa camelopardalis), from four zoos were compared with the time budgets of wild giraffe from Hwange National Par... Read More about On Comparing the Behaviour of Zoo Housed Animals with Wild Conspecifics as a Welfare Indicator, Using the Giraffe (Glraffa Camelopardalis) as a Model.

Assessment of motivation in the lizard, Chalcides ocellatus (1996)
Journal Article
Skelton, T., Waran, N., & Young, R. (1996). Assessment of motivation in the lizard, Chalcides ocellatus. Animal Welfare Journal, 5(1), 63-69. https://doi.org/10.1017/S0962728600018340

The purpose of this study was to assess whether running an alleyway can be used to measure the motivation of lizards. Six, eyed skinks, Chalcides ocellatus, were trained to run an alleyway to reach sand in which to hide. Each skink was deprived of sa... Read More about Assessment of motivation in the lizard, Chalcides ocellatus.

On Comparing the Behaviour of Zoo Housed Animals with Wild Conspecifics as a Welfare Indicator (1996)
Journal Article
Veasey, J. S., Waran, N. K., & Young, R. J. (1996). On Comparing the Behaviour of Zoo Housed Animals with Wild Conspecifics as a Welfare Indicator. Animal Welfare Journal, 5(1), 13-24. https://doi.org/10.1017/s0962728600018297

It is commonly assumed that animals suffer if they cannot perform behaviours seen in wild conspecifics. Although comparisons with the behaviour of wild conspecifics are a popular method of assessing the welfare of captive animals, their validity has... Read More about On Comparing the Behaviour of Zoo Housed Animals with Wild Conspecifics as a Welfare Indicator.

The effect of a foraging device (The ‘Edinburgh Foodball’) on the behaviour of pigs (1994)
Journal Article
Young, R., Carruthers, J., & Lawrence, A. (1994). The effect of a foraging device (The ‘Edinburgh Foodball’) on the behaviour of pigs. Applied Animal Behaviour Science, 39(3-4), 237-247. https://doi.org/10.1016/0168-1591%2894%2990159-7

Sows housed under conditions of food and physical restriction often perform behaviours indicative of poor welfare (e.g. repetitive chain chewing), one cause of which may be the inability of sows to express foraging behaviour under confined conditions... Read More about The effect of a foraging device (The ‘Edinburgh Foodball’) on the behaviour of pigs.

Feeding behaviour of pigs in groups monitored by a computerized feeding system (1994)
Journal Article
Young, R., & Lawrence, A. (1994). Feeding behaviour of pigs in groups monitored by a computerized feeding system. Animal Science, 58(1), 145-152. https://doi.org/10.1017/S0003356100007182

Electronic feeding systems for progeny testing pigs, allow selection to occur under conditions found on commercial farms. This paper reports on the feeding behaviour of six groups of 10 pigs, balanced for sex and initial body weight (mean starting an... Read More about Feeding behaviour of pigs in groups monitored by a computerized feeding system.

Risk-sensitive foraging in bitterlings Rhodeus sericus: effects of food requirement and breeding site quality (1990)
Journal Article
Young, R., Clayton, H., & Barnard, C. (1990). Risk-sensitive foraging in bitterlings Rhodeus sericus: effects of food requirement and breeding site quality. Animal Behaviour, 40(2), 288-297. https://doi.org/10.1016/S0003-3472%2805%2980923-6

Risk-sensitive foraging preferences in bitterlings were examined in relation to changing food deprivation and intake relative to estimated requirement. When running above estimated requirement and presented with a choice of constant and variable feed... Read More about Risk-sensitive foraging in bitterlings Rhodeus sericus: effects of food requirement and breeding site quality.

Analysis of dogs’ sleep patterns using convolutional neural networks
Presentation / Conference
Zamansky, A., Sinitca, A., Kaplun, D., Plazner, M., Schork, I., Young, R., & de Azevedo, C. Analysis of dogs’ sleep patterns using convolutional neural networks. Presented at 28th International Conference on Artificial Neural Networks, Munich, Germany

Video-based analysis is one of the most important tools of animal behavior and animal welfare scientists. While automatic analysis systems exist for many species, this problem has not yet been adequately addressed for one of the most studied species... Read More about Analysis of dogs’ sleep patterns using convolutional neural networks.

What studbooks can tell us about captive breeding programmes : a case study of cheetahs (Acinonyx jubatus)
Thesis
Rodrigues Nogueira Forti, I. (in press). What studbooks can tell us about captive breeding programmes : a case study of cheetahs (Acinonyx jubatus). (Thesis). University of Salford

The success of captive breeding programmes demands planning and communication among zoos, national parks, conservation organizations and political institutions. To avoid inbreeding and enhance the likelihood of finding suitable partners, target indiv... Read More about What studbooks can tell us about captive breeding programmes : a case study of cheetahs (Acinonyx jubatus).

How does the zoo soundscape affect the zoo experience for animals and visitors?
Thesis
Bonde de Queiroz, M. (in press). How does the zoo soundscape affect the zoo experience for animals and visitors?. (Thesis). University of Salford

This project aims to evaluate the zoo soundscape from the animals and visitors perspective. A complete acoustic environment study in zoological parks should involve these two different, but equally important, characters. This thesis presents the resu... Read More about How does the zoo soundscape affect the zoo experience for animals and visitors?.