Título
Connectivity among jaguar populations in the Sierra Madre Oriental, México
Conectividad entre las poblaciones de jaguar en la Sierra Madre Oriental, México
Autor
GMELINA DUEÑAS LOPEZ
OCTAVIO CESAR ROSAS ROSAS
LEONARDO CHAPA VARGAS
LUIS ANTONIO TARANGO ARAMBULA
JUAN FELIPE MARTINEZ MONTOYA
JOSE LUIS ALCANTARA CARBAJAL
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.12933/therya-15-257
Materias
Resumen o descripción
"Introduction: The jaguar (Panthera onca) is an apex carnivore that is vulnerable to habitat fragmentation, and some of its populations are believed to be isolated in México where it is classed as endangered. The main the objective of our study was to evaluate connectivity of available jaguar habitat from the Sierra Madre Oriental of México (SMO) towards southern México.
Methods: We determined least-cost pathways for jaguar movements among habitat patches in the SMO and identified potential corridors from the SMO. We used recent jaguar presence data and maximum entropy modeling to identify habitat patches in the SMO. We then used the Analytical Hierarchy Process to generate input values for a resistance (landscape permeability) matrix for jaguar movements that we generated using Multi-Criteria-Evaluation with a weighted linear combination. We then modeled least-cost pathways for both dispersal and local movements of jaguars.
Results: We identified 581 potential highly suitable habitat patches for the jaguar. Of these, three were > 100 km2 and thus met the criteria for fundamental (i. e. capable of supporting a viable jaguar population) patches. The resistance matrix contained 3 % of low cost and 49 % intermediate cost areas for jaguar movements. Least-cost pathways analysis showed 61 dispersal routes totaling > 2,000 km and > 200 travel routes, with the largest number of both route types in Hidalgo. We also identified potentially five significant corridors for jaguar movement within the SMO and south towards southern México populations.
Discussion and implications: We determined that the SMO contains significant jaguar habitat with multiple biological corridors for connectivity with more southern populations of jaguar in México. Based on this, we recommend development of management strategies to facilitate exchange of individuals from the SMO with other known jaguar populations in southern states (i. e. Oaxaca, Tabasco, Guerrero). Principal strategies may focus on habitat management of fundamental patches and habitat restoration between or around stepping-stones. Promoting connectivity among patches and populations which inhabit the SMO will increase its potential as a biodiversity conservation area."
Editor
Asociación Mexicana de Mastozoología A. C.
Fecha de publicación
2015
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Relación
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Rosas-Rosas, O.,
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Chapa-Vargas, L.,
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Bender, L.,
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Tarango- Arámbula, L.,
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Martinez-Montoya, J.,
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Alcántara-Carbajal, J. (2015). Connectivity among jaguar populations in the Sierra Madre Oriental, México. Therya, 6 (2), 449-467.
Sugerencia de citación
Dueñas-López, G.,
Repositorio Orígen
Repositorio IPICYT
Descargas
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