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Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade

Commercial hunting for the international trade in animal hides in the 20(th) century decimated many populations of aquatic wildlife in Amazonia. However, impacts varied significantly between different species and regions, depending upon hunting intensity, accessibility of habitat, and the inherent r...

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Autores principales: Pimenta, Natalia C., Antunes, André P., Barnett, Adrian A., Macedo, Valêncio W., Shepard, Glenn H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5877832/
https://www.ncbi.nlm.nih.gov/pubmed/29601590
http://dx.doi.org/10.1371/journal.pone.0193984
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author Pimenta, Natalia C.
Antunes, André P.
Barnett, Adrian A.
Macedo, Valêncio W.
Shepard, Glenn H.
author_facet Pimenta, Natalia C.
Antunes, André P.
Barnett, Adrian A.
Macedo, Valêncio W.
Shepard, Glenn H.
author_sort Pimenta, Natalia C.
collection PubMed
description Commercial hunting for the international trade in animal hides in the 20(th) century decimated many populations of aquatic wildlife in Amazonia. However, impacts varied significantly between different species and regions, depending upon hunting intensity, accessibility of habitat, and the inherent resilience of various species and their habitats. We investigated the differential responses of two Amazonian Mustelid species, the neotropical otter and giant otter, to commercial hunting pressure along the upper Rio Negro in Brazil, and examined historical factors that influenced spatial and temporal variation in commercial exploitation. We analyzed previously unanalyzed data from historical records of hide shipments to track changes in hide sales and prices for the two species in the late 20(th) century. We also gathered oral histories from older Baniwa people who had witnessed or participated in commercial otter hunting. These complimentary data sources reveal how intrinsic biological and social characteristics of the two otter species interacted with market forces and regional history. Whereas giant otter populations were driven to local or regional extinction during the late 20(th) century by commercial hunting, neotropical otters persisted. In recent decades, giant otter populations have returned to some parts of the upper Rio Negro, a development which local people welcome as part of a generalized recovery of the ecosystems in their territory as a result of the banning of animal pelt exports and indigenous land demarcation. This paper expands the scope of the field historical ecology and reflects on the role of local knowledge in biodiversity conservation.
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spelling pubmed-58778322018-04-13 Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade Pimenta, Natalia C. Antunes, André P. Barnett, Adrian A. Macedo, Valêncio W. Shepard, Glenn H. PLoS One Research Article Commercial hunting for the international trade in animal hides in the 20(th) century decimated many populations of aquatic wildlife in Amazonia. However, impacts varied significantly between different species and regions, depending upon hunting intensity, accessibility of habitat, and the inherent resilience of various species and their habitats. We investigated the differential responses of two Amazonian Mustelid species, the neotropical otter and giant otter, to commercial hunting pressure along the upper Rio Negro in Brazil, and examined historical factors that influenced spatial and temporal variation in commercial exploitation. We analyzed previously unanalyzed data from historical records of hide shipments to track changes in hide sales and prices for the two species in the late 20(th) century. We also gathered oral histories from older Baniwa people who had witnessed or participated in commercial otter hunting. These complimentary data sources reveal how intrinsic biological and social characteristics of the two otter species interacted with market forces and regional history. Whereas giant otter populations were driven to local or regional extinction during the late 20(th) century by commercial hunting, neotropical otters persisted. In recent decades, giant otter populations have returned to some parts of the upper Rio Negro, a development which local people welcome as part of a generalized recovery of the ecosystems in their territory as a result of the banning of animal pelt exports and indigenous land demarcation. This paper expands the scope of the field historical ecology and reflects on the role of local knowledge in biodiversity conservation. Public Library of Science 2018-03-30 /pmc/articles/PMC5877832/ /pubmed/29601590 http://dx.doi.org/10.1371/journal.pone.0193984 Text en © 2018 Pimenta et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Pimenta, Natalia C.
Antunes, André P.
Barnett, Adrian A.
Macedo, Valêncio W.
Shepard, Glenn H.
Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade
title Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade
title_full Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade
title_fullStr Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade
title_full_unstemmed Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade
title_short Differential resilience of Amazonian otters along the Rio Negro in the aftermath of the 20(th) century international fur trade
title_sort differential resilience of amazonian otters along the rio negro in the aftermath of the 20(th) century international fur trade
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5877832/
https://www.ncbi.nlm.nih.gov/pubmed/29601590
http://dx.doi.org/10.1371/journal.pone.0193984
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