Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes

Detalhes bibliográficos
Autor(a) principal: Rodríguez, Daniel
Data de Publicação: 2020
Outros Autores: Reyes, Adriana, Quiñones-Guerrero, Andres, Poveda-Gómez, Fidel Ernesto, Castillo-Navarro, Yeimy, Duque, Robinson, Reyes-Amaya, Nicolás Rafael
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Papéis Avulsos de Zoologia (Online)
Texto Completo: https://www.revistas.usp.br/paz/article/view/160034
Resumo: The Andean bear (Tremarctos ornatus) population density and relative abundance within the Chingaza Massif were assessed between September 2015 and May 2016. One hundred seventeen (117) camera traps were installed at 9 grids: 13 cameras per grid, each camera separated 750 m from the other; the sampling effort was 17,057 days-trap. Two thousand seven hundred eighty-four (2,784) native fauna records were obtained, 1,456 corresponding to mammals, 183 records for Andean bear specimens, 158 of them independent bear records (at least one hour between records), and 106 effective-independent bear records (also permitting individual recognition). Fifty-seven (57) Andean bear individuals were identified according to key external morphological features. Sixteen (16) adults were recaptured (12 males and 4 females), with a maximum mean distance of 27.22 km. Bears population density was 2.9 bears per 100 km². Based on this density and the buffer area of the sampling grids, we estimated an overall number of 122 bears in 4,215.15 km². The estimated density is the first for the species in Colombia and the lowest regarding previous reports from other countries. Thus, it is necessary to better understand how integral habitat quality and the anthropic impacts on habitat quality, availability, and connectivity may affect the Andean bear population densities in Colombia, as a useful tool for assessing populations` state and focus future conservation actions.
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spelling Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andesAndean bearConservationCamera trappingPopulation densityRelative abundanceThe Andean bear (Tremarctos ornatus) population density and relative abundance within the Chingaza Massif were assessed between September 2015 and May 2016. One hundred seventeen (117) camera traps were installed at 9 grids: 13 cameras per grid, each camera separated 750 m from the other; the sampling effort was 17,057 days-trap. Two thousand seven hundred eighty-four (2,784) native fauna records were obtained, 1,456 corresponding to mammals, 183 records for Andean bear specimens, 158 of them independent bear records (at least one hour between records), and 106 effective-independent bear records (also permitting individual recognition). Fifty-seven (57) Andean bear individuals were identified according to key external morphological features. Sixteen (16) adults were recaptured (12 males and 4 females), with a maximum mean distance of 27.22 km. Bears population density was 2.9 bears per 100 km². Based on this density and the buffer area of the sampling grids, we estimated an overall number of 122 bears in 4,215.15 km². The estimated density is the first for the species in Colombia and the lowest regarding previous reports from other countries. Thus, it is necessary to better understand how integral habitat quality and the anthropic impacts on habitat quality, availability, and connectivity may affect the Andean bear population densities in Colombia, as a useful tool for assessing populations` state and focus future conservation actions.Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).2020-07-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/paz/article/view/16003410.11606/1807-0205/2020.60.30Papéis Avulsos de Zoologia; v. 60 (2020); e20206030Papéis Avulsos de Zoologia; Vol. 60 (2020); e20206030Papéis Avulsos de Zoologia; Vol. 60 (2020); e202060301807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/160034/162033Copyright (c) 2020 Papéis Avulsos de Zoologiainfo:eu-repo/semantics/openAccessRodríguez, DanielReyes, AdrianaQuiñones-Guerrero, AndresPoveda-Gómez, Fidel ErnestoCastillo-Navarro, YeimyDuque, RobinsonReyes-Amaya, Nicolás Rafael2020-07-16T12:59:16Zoai:revistas.usp.br:article/160034Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2023-01-12T16:41:57.318123Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
title Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
spellingShingle Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
Rodríguez, Daniel
Andean bear
Conservation
Camera trapping
Population density
Relative abundance
title_short Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
title_full Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
title_fullStr Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
title_full_unstemmed Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
title_sort Andean bear (Tremarctos ornatus) population density and relative abundance at the buffer zone of the Chingaza National Natural Park, cordillera oriental of the colombian andes
author Rodríguez, Daniel
author_facet Rodríguez, Daniel
Reyes, Adriana
Quiñones-Guerrero, Andres
Poveda-Gómez, Fidel Ernesto
Castillo-Navarro, Yeimy
Duque, Robinson
Reyes-Amaya, Nicolás Rafael
author_role author
author2 Reyes, Adriana
Quiñones-Guerrero, Andres
Poveda-Gómez, Fidel Ernesto
Castillo-Navarro, Yeimy
Duque, Robinson
Reyes-Amaya, Nicolás Rafael
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Rodríguez, Daniel
Reyes, Adriana
Quiñones-Guerrero, Andres
Poveda-Gómez, Fidel Ernesto
Castillo-Navarro, Yeimy
Duque, Robinson
Reyes-Amaya, Nicolás Rafael
dc.subject.por.fl_str_mv Andean bear
Conservation
Camera trapping
Population density
Relative abundance
topic Andean bear
Conservation
Camera trapping
Population density
Relative abundance
description The Andean bear (Tremarctos ornatus) population density and relative abundance within the Chingaza Massif were assessed between September 2015 and May 2016. One hundred seventeen (117) camera traps were installed at 9 grids: 13 cameras per grid, each camera separated 750 m from the other; the sampling effort was 17,057 days-trap. Two thousand seven hundred eighty-four (2,784) native fauna records were obtained, 1,456 corresponding to mammals, 183 records for Andean bear specimens, 158 of them independent bear records (at least one hour between records), and 106 effective-independent bear records (also permitting individual recognition). Fifty-seven (57) Andean bear individuals were identified according to key external morphological features. Sixteen (16) adults were recaptured (12 males and 4 females), with a maximum mean distance of 27.22 km. Bears population density was 2.9 bears per 100 km². Based on this density and the buffer area of the sampling grids, we estimated an overall number of 122 bears in 4,215.15 km². The estimated density is the first for the species in Colombia and the lowest regarding previous reports from other countries. Thus, it is necessary to better understand how integral habitat quality and the anthropic impacts on habitat quality, availability, and connectivity may affect the Andean bear population densities in Colombia, as a useful tool for assessing populations` state and focus future conservation actions.
publishDate 2020
dc.date.none.fl_str_mv 2020-07-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/paz/article/view/160034
10.11606/1807-0205/2020.60.30
url https://www.revistas.usp.br/paz/article/view/160034
identifier_str_mv 10.11606/1807-0205/2020.60.30
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/paz/article/view/160034/162033
dc.rights.driver.fl_str_mv Copyright (c) 2020 Papéis Avulsos de Zoologia
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Papéis Avulsos de Zoologia
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
dc.source.none.fl_str_mv Papéis Avulsos de Zoologia; v. 60 (2020); e20206030
Papéis Avulsos de Zoologia; Vol. 60 (2020); e20206030
Papéis Avulsos de Zoologia; Vol. 60 (2020); e20206030
1807-0205
0031-1049
reponame:Papéis Avulsos de Zoologia (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Papéis Avulsos de Zoologia (Online)
collection Papéis Avulsos de Zoologia (Online)
repository.name.fl_str_mv Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv publicacaomz@usp.br ; einicker@usp.br
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