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All Outputs (152)

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.

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?.