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The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies

Medium to large rainforest mammals are key conservation flagship groups that offer non‐redundant ecosystem functions, but anthropic pressures, such as illegal hunting, may strongly affect their occupancy in Amazonia. We combined camera traps and occupancy models to assess the influence of distance f...

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Autores principales: de Souza Ferreira Neto, Gilson, Baccaro, Fabricio Beggiato, Phillips, Matthew J., Massara, Rodrigo Lima
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10694382/
http://dx.doi.org/10.1002/ece3.10783
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author de Souza Ferreira Neto, Gilson
Baccaro, Fabricio Beggiato
Phillips, Matthew J.
Massara, Rodrigo Lima
author_facet de Souza Ferreira Neto, Gilson
Baccaro, Fabricio Beggiato
Phillips, Matthew J.
Massara, Rodrigo Lima
author_sort de Souza Ferreira Neto, Gilson
collection PubMed
description Medium to large rainforest mammals are key conservation flagship groups that offer non‐redundant ecosystem functions, but anthropic pressures, such as illegal hunting, may strongly affect their occupancy in Amazonia. We combined camera traps and occupancy models to assess the influence of distance from human settlements, the number of families per settlement and the synergetic effect of the average weight of 27 species on the occupancy probability of mammals. Specifically, we classified mammal species according to the game preferences of hunters (i.e. a group of species depleted for bushmeat, a group of species hunted for retaliation and a group of non‐hunted species). We also accounted for the influence on the detection probability of each group of both the number of days each camera operated and the body weight of mammals. The occupancy probability of the bushmeat group (i.e. deer, peccaries, agoutis, pacas and armadillos) was lower at locations closer to human settlements. Still, the number of families correlated positively with occupancy, with the occupancy probability of the group being slightly higher at sites with more families. This difference was probably due to larger and more abundant crops and fruiting trees attracting wildlife at such sites. Conversely, the occupancy probability of the retaliation group (i.e. carnivores) and the non‐hunted group (i.e. opossums, spiny rats, squirrels and anteaters) were indifferent to anthropogenic stressors. The detection probability of the non‐hunted and particularly the most depleted species correlated negatively with body weight. This may suggest that larger species, especially those from the bushmeat group, are rarer or less abundant in the system, possibly because they are the preferable target of hunters. In the long term, locals will likely need to travel long distances to find harvest meat. Poaching also threatens food security since game bushmeat is an essential source of protein for isolated rural Amazonians.
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spelling pubmed-106943822023-12-05 The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies de Souza Ferreira Neto, Gilson Baccaro, Fabricio Beggiato Phillips, Matthew J. Massara, Rodrigo Lima Ecol Evol Research Articles Medium to large rainforest mammals are key conservation flagship groups that offer non‐redundant ecosystem functions, but anthropic pressures, such as illegal hunting, may strongly affect their occupancy in Amazonia. We combined camera traps and occupancy models to assess the influence of distance from human settlements, the number of families per settlement and the synergetic effect of the average weight of 27 species on the occupancy probability of mammals. Specifically, we classified mammal species according to the game preferences of hunters (i.e. a group of species depleted for bushmeat, a group of species hunted for retaliation and a group of non‐hunted species). We also accounted for the influence on the detection probability of each group of both the number of days each camera operated and the body weight of mammals. The occupancy probability of the bushmeat group (i.e. deer, peccaries, agoutis, pacas and armadillos) was lower at locations closer to human settlements. Still, the number of families correlated positively with occupancy, with the occupancy probability of the group being slightly higher at sites with more families. This difference was probably due to larger and more abundant crops and fruiting trees attracting wildlife at such sites. Conversely, the occupancy probability of the retaliation group (i.e. carnivores) and the non‐hunted group (i.e. opossums, spiny rats, squirrels and anteaters) were indifferent to anthropogenic stressors. The detection probability of the non‐hunted and particularly the most depleted species correlated negatively with body weight. This may suggest that larger species, especially those from the bushmeat group, are rarer or less abundant in the system, possibly because they are the preferable target of hunters. In the long term, locals will likely need to travel long distances to find harvest meat. Poaching also threatens food security since game bushmeat is an essential source of protein for isolated rural Amazonians. John Wiley and Sons Inc. 2023-12-03 /pmc/articles/PMC10694382/ http://dx.doi.org/10.1002/ece3.10783 Text en © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
de Souza Ferreira Neto, Gilson
Baccaro, Fabricio Beggiato
Phillips, Matthew J.
Massara, Rodrigo Lima
The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies
title The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies
title_full The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies
title_fullStr The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies
title_full_unstemmed The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies
title_short The distribution of bushmeat mammals in unflooded forests of the Central Amazon is influenced by poaching proxies
title_sort distribution of bushmeat mammals in unflooded forests of the central amazon is influenced by poaching proxies
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10694382/
http://dx.doi.org/10.1002/ece3.10783
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