Neotropical understory birds and mammals show divergent behaviour responses to human pressure

Human pressures such as hunting and habitat destruction can generate a deep fear in animals and this fear can influence their diel activity patterns and use of space. However, whether these behavioural responses to human pressure are consistent among key functional groups has been poorly studied. Fo...

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Main Authors: Negret, Pablo Jose, Luskin, Mathew Scott, Gomez-Valencia, Bibiana, Diaz-Pulido, Angelica, Romero, Luis Hernando, Restrepo, Adriana, Zaehringer, Julie G., Jones, Kendall R., Ochoa-Quintero, Jose Manuel, Mendes, Calebe Pereira
Other Authors: Asian School of the Environment
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/173635
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1736352024-02-26T15:30:48Z Neotropical understory birds and mammals show divergent behaviour responses to human pressure Negret, Pablo Jose Luskin, Mathew Scott Gomez-Valencia, Bibiana Diaz-Pulido, Angelica Romero, Luis Hernando Restrepo, Adriana Zaehringer, Julie G. Jones, Kendall R. Ochoa-Quintero, Jose Manuel Mendes, Calebe Pereira Asian School of the Environment Earth and Environmental Sciences Ecosystem fragmentation Ecosystem degradation Human pressures such as hunting and habitat destruction can generate a deep fear in animals and this fear can influence their diel activity patterns and use of space. However, whether these behavioural responses to human pressure are consistent among key functional groups has been poorly studied. For example, while mammal species tend to become more nocturnal in areas with high human pressure, it is unclear if co-occurring birds display similar or opposite patterns. Here we used information from camera trapping (367 camera stations and 16,939 camera/days) along a gradient of human pressure in the Colombian Llanos to assess diel activity changes in understory birds and mammals. We found that diel activity significantly changed with higher human pressure for 45% of the birds (five species) and 36% of the mammals (five species) assessed, with four of five birds becoming more diurnal and all five mammals becoming more nocturnal. The average increase in nocturnality for the mammals was 11.3% while the average increase in diurnality for the birds was 7%. There was high variation in body size and dietary guild within impacted species, and only some were directly persecuted or hunted, suggesting that there are different pathways through which human pressure can affect vertebrates’ activity patterns. The contrasting behavioural responses to humans among vertebrate functional groups has significant repercussions for the fields of community ecology, including intraguild predation and competition, and should be a significant ecosystem-level conservation consideration. Published version 2024-02-20T04:48:03Z 2024-02-20T04:48:03Z 2023 Journal Article Negret, P. J., Luskin, M. S., Gomez-Valencia, B., Diaz-Pulido, A., Romero, L. H., Restrepo, A., Zaehringer, J. G., Jones, K. R., Ochoa-Quintero, J. M. & Mendes, C. P. (2023). Neotropical understory birds and mammals show divergent behaviour responses to human pressure. Perspectives in Ecology and Conservation, 21(2), 180-188. https://dx.doi.org/10.1016/j.pecon.2023.04.002 2530-0644 https://hdl.handle.net/10356/173635 10.1016/j.pecon.2023.04.002 2-s2.0-85152960900 2 21 180 188 en Perspectives in Ecology and Conservation © 2023 Associação Brasileira de Ciência Ecológica e Conservação. Published by Elsevier B.V.. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Earth and Environmental Sciences
Ecosystem fragmentation
Ecosystem degradation
spellingShingle Earth and Environmental Sciences
Ecosystem fragmentation
Ecosystem degradation
Negret, Pablo Jose
Luskin, Mathew Scott
Gomez-Valencia, Bibiana
Diaz-Pulido, Angelica
Romero, Luis Hernando
Restrepo, Adriana
Zaehringer, Julie G.
Jones, Kendall R.
Ochoa-Quintero, Jose Manuel
Mendes, Calebe Pereira
Neotropical understory birds and mammals show divergent behaviour responses to human pressure
description Human pressures such as hunting and habitat destruction can generate a deep fear in animals and this fear can influence their diel activity patterns and use of space. However, whether these behavioural responses to human pressure are consistent among key functional groups has been poorly studied. For example, while mammal species tend to become more nocturnal in areas with high human pressure, it is unclear if co-occurring birds display similar or opposite patterns. Here we used information from camera trapping (367 camera stations and 16,939 camera/days) along a gradient of human pressure in the Colombian Llanos to assess diel activity changes in understory birds and mammals. We found that diel activity significantly changed with higher human pressure for 45% of the birds (five species) and 36% of the mammals (five species) assessed, with four of five birds becoming more diurnal and all five mammals becoming more nocturnal. The average increase in nocturnality for the mammals was 11.3% while the average increase in diurnality for the birds was 7%. There was high variation in body size and dietary guild within impacted species, and only some were directly persecuted or hunted, suggesting that there are different pathways through which human pressure can affect vertebrates’ activity patterns. The contrasting behavioural responses to humans among vertebrate functional groups has significant repercussions for the fields of community ecology, including intraguild predation and competition, and should be a significant ecosystem-level conservation consideration.
author2 Asian School of the Environment
author_facet Asian School of the Environment
Negret, Pablo Jose
Luskin, Mathew Scott
Gomez-Valencia, Bibiana
Diaz-Pulido, Angelica
Romero, Luis Hernando
Restrepo, Adriana
Zaehringer, Julie G.
Jones, Kendall R.
Ochoa-Quintero, Jose Manuel
Mendes, Calebe Pereira
format Article
author Negret, Pablo Jose
Luskin, Mathew Scott
Gomez-Valencia, Bibiana
Diaz-Pulido, Angelica
Romero, Luis Hernando
Restrepo, Adriana
Zaehringer, Julie G.
Jones, Kendall R.
Ochoa-Quintero, Jose Manuel
Mendes, Calebe Pereira
author_sort Negret, Pablo Jose
title Neotropical understory birds and mammals show divergent behaviour responses to human pressure
title_short Neotropical understory birds and mammals show divergent behaviour responses to human pressure
title_full Neotropical understory birds and mammals show divergent behaviour responses to human pressure
title_fullStr Neotropical understory birds and mammals show divergent behaviour responses to human pressure
title_full_unstemmed Neotropical understory birds and mammals show divergent behaviour responses to human pressure
title_sort neotropical understory birds and mammals show divergent behaviour responses to human pressure
publishDate 2024
url https://hdl.handle.net/10356/173635
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