All Outputs (164)

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., 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 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.

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
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.

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.

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.

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.

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?.

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.