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Northern Jaguar Online Database
Author(s): Kim Fisher, Eric Sanderson and Mario Giampieri
Year: 2014
Description/Abstract: This report provides an over view of the Northern Jaguar Online Database developed by WCS for theUS Fish and Wildlife Service.
Publisher: WCS
Full Citation: Fisher, K., Sanderson, E., and M. Giamperi. 2014. Northern Jaguar Online Database. WCS.
Jaguar Habitat Modelling and Data Base Update
Author(s): Eric Sanderson and Kim Fisher
Year: 2013
Description/Abstract: This report provides an update of the WCS jaguar habitat modeling and data base project.
Publisher: WCS
Full Citation: Sanderson, E.W. and K. Fisher. 2013. Jaguar Habitat Modelling and Data Base Update
Recommendations of Road Passage Designs for Jaguars
Author(s): Sean M. Matthews, Jon P. Beckmann, and Amanda R. Hardy
Year: 2015
Description/Abstract: Transportation networks fragment the natural landscape and create barriers that interfere with animals’ ability to move across landscapes to meet biological needs such as finding food, water, cover, and dispersing to new areas to secure access to mates to increase genetic diversity. Mortality of wildlife due to collisions with vehicles can have direct impacts at the population level. For many imperiled or sensitive species, the impacts of roads may be uncertain. The U.S. Fish and Wildlife Service Recovery Outline for the jaguar (Panthera onca) identified the need to assess the impact of roads on jaguars and measures to enable these rare carnivores to safely cross roads for the recovery of this species. This document addresses these measures by offering recommendations drawn from a growing body of literature and case studies on techniques that have high potential to facilitate safe movements of jaguar across roads at the northern extent of their historical range in Mexico and in the southwest United States (i.e., the Northwestern Recovery Unit).
Publisher: WCS
Full Citation: Matthews, S. M., J. P. Beckmann, and A. R Hardy. 2015. Recommendations of road passage designs for jaguars. Wildlife Conservation Society final report to the U.S. Fish and Wildlife Service in response to Solicitation F14PX00340, submitted 23 January 2015. 56 pp.
Recomendaciones para el Diseño de Cruces de Caminos para Jaguares
Author(s): Sean M. Matthews, Jon P. Beckmann, y Amanda R. Hardy
Year: 2015
Description/Abstract: Matthews et al 2014 Recommendations of road passage designs for jaguars Transportation networks fragment the natural landscape and create barriers that interfere with animals’ ability to move across landscapes to meet biological needs such as finding food, water, cover, and dispersing to new areas to secure access to mates to increase genetic diversity. Mortality of wildlife due to collisions with vehicles can have direct impacts at the population level. For many imperiled or sensitive species, the impacts of roads may be uncertain. The U.S. Fish and Wildlife Service Recovery Outline for the jaguar (Panthera onca) identified the need to assess the impact of roads on jaguars and measures to enable these rare carnivores to safely cross roads for the recovery of this species. This document addresses these measures by offering recommendations drawn from a growing body of literature and case studies on techniques that have high potential to facilitate safe movements of jaguar across roads at the northern extent of their historical range in Mexico and in the southwest United States (i.e., the Northwestern Recovery Unit).
Publisher: WCS
Full Citation: Matthews, S. M., J. P. Beckmann, y A. R Hardy. 2015. Recomendaciones para el diseño de cruces de caminos para jaguares. Reporte Final de Wildlife Conservation Society para U.S. Fish and Wildlife Service en respuesta a la Solicitud F14PX00340, enviada el 23 de enero de 2015. 56 pp.
Status and ecological effects of the world’s largest carnivores
Author(s): Ripple, W.J., Estes, J.A., Beschta, R.L., Wilmers, C.C., Ritchie, E.G., Hebblewhite, M., Berger, J., Elmhagen, B., Letnic, M., Nelson, M.P., Schmitz, O.J., Smith, D.W., Wallach, A.D., and A.J. Wirsing
Year: 2014
Description/Abstract: Consistent with theory, empirical studies increasingly show that large carnivores have substantial effects on the structure and function of diverse ecosystems. Large carnivores face serious threats and are experiencing massive declines in their populations and geographic ranges around the world. This study highlights how these threats have affected the conservation status and ecological functioning of the 31 largest mammalian carnivores on Earth.
Journal/Source: Science
Full Citation: Ripple, W.J., Estes, J.A., Beschta, R.L., Wilmers, C.C., Ritchie, E.G., Hebblewhite, M., Berger, J., Elmhagen, B., Letnic, M., Nelson, M.P., Schmitz, O.J., Smith, D.W., Wallach, A.D., and A.J. Wirsing (2014). “Status and ecological effects of the world’s largest carnivores.” Science 343(6167).
Conectividad entre habitats del jaguar y identificacion de lugares potenciales para mitigacion de impactos carreteros
Author(s): Kelly J. Stoner, Amanda R. Hardy, Kim Fisher, Eric W. Sanderson
Year: 2015
Description/Abstract: The loss and fragmentation of habitat due to anthropogenic activity is a major threat to the persistence of the jaguar (Panthera onca) across its range. In this report, we identify places where mitigation efforts such as road crossing structures may be used to prevent fragmentation and promote habitat connectivity in the NRU, an area identified in the Recovery Outline for the Jaguar. We used electrical circuit theory to predict important jaguar corridors and locations where jaguar movement may be obstructed by transportation infrastructure. Our analysis revealed 10 locations where road crossing structures would protect and enhance habitat connectivity for jaguars in the NRU. Based on these results, we offer suggestions and considerations for next steps in planning for the incorporation of measures to maintain connectivity and safe passage of jaguar across these landscapes.
Publisher: Wildlife Conservation Society
Full Citation: Stoner, K. J., A. R. Hardy, K. Fisher, and E. W. Sanderson. 2015. Jaguar habitat connectivity and identification of potential road mitigation locations in the Northwestern Recovery Unit for the Jaguar. Wildlife Conservation Society final draft report to the U.S. Fish and Wildlife Service in response to Solicitation F14PX00340, submitted 16 March 2015. 29 pp.
Técnicas y Metodologías para el Estudio de Jaguares Una Revisión.
Author(s): John Polisar, Tim G. O’Brien, Sean M. Matthews, Jon P. Beckmann, Eric W. Sanderson, Octavio Cesar Rosas-Rosas, and Carlos A. López-González
Year: 2014
Description/Abstract: Jaguars (Panthera onca L.) have lived in the America’s for more than 2 million years, but thousands of years of range expansion were reversed in the last few hundred years, particularly on the northern margin of their range. The USFWS contracted the Wildlife Conservation Society to: 1) conduct a literature review of jaguar survey and monitoring techniques and methodologies; and 2) draft a jaguar survey and monitoring protocol for application in the NRU, and with relevance for monitoring the species range wide. In this first half of the task, we present the basics of jaguar monitoring. A monitoring program for jaguars and other large cats may have a number of objectives, with the most obvious and important being changes in area (range/habitat) occupied, and changes in abundance (numbers). Herein, we review literature pertinent to surveys and monitoring in general, and to jaguars in particular, addressing the conceptual and statistical frameworks for the most commonly applied survey and monitoring designs used by biologists and statisticians (this document).
Publisher: WCS
Full Citation: John Polisar, Tim G. O’Brien, Sean M. Matthews, Jon P. Beckmann, Eric W. Sanderson, Octavio Cesar Rosas-Rosas, and Carlos A. López-González. 2014. Técnicas y Metodologías para el Estudio de Jaguares Una Revisión. Wildlife Conservation Society. 135 pp
Evaluando densidades de jaguares con trampas camara
Author(s): Noss, A., Polisar, J., Maffei, L., Garcia, R., Silver, S.
Year: 2013
Journal/Source: N/A
Publisher: Wildlife Conservation Society
Full Citation: Noss, A., Polisar, J., Maffei, L., Garcia, R., Silver, S., 2013. Evaluando densidades de jaguares con trampas camara. Wildlife Conservation Society.
Jaguar Habitat Connectivity and Identification of Potential Road Mitigation Locations in the Northwestern Recovery Unit for the Jaguar
Author(s): Kelly J. Stoner, Amanda R. Hardy, Kim Fisher, Eric W. Sanderson
Year: 2015
Description/Abstract: The loss and fragmentation of habitat due to anthropogenic activity is a major threat to the persistence of the jaguar (Panthera onca) across its range. In this report, we identify places where mitigation efforts such as road crossing structures may be used to prevent fragmentation and promote habitat connectivity in the NRU, an area identified in the Recovery Outline for the Jaguar. We used electrical circuit theory to predict important jaguar corridors and locations where jaguar movement may be obstructed by transportation infrastructure. Our analysis revealed 10 locations where road crossing structures would protect and enhance habitat connectivity for jaguars in the NRU. Based on these results, we offer suggestions and considerations for next steps in planning for the incorporation of measures to maintain connectivity and safe passage of jaguar across these landscapes.
Publisher: Wildlife Conservation Society
Full Citation: Stoner, K. J., A. R. Hardy, K. Fisher, and E. W. Sanderson. 2015. Jaguar habitat connectivity and identification of potential road mitigation locations in the Northwestern Recovery Unit for the Jaguar. Wildlife Conservation Society final draft report to the U.S. Fish and Wildlife Service in response to Solicitation F14PX00340, submitted 16 March 2015. 29 pp.
Review of Jaguar Survey and Monitoring Techniques and Methodologies
Author(s): John Polisar, Tim G. O’Brien, Sean M. Matthews, Jon P. Beckmann, Eric W. Sanderson, Octavio Cesar Rosas-Rosas, and Carlos A. López-González
Year: 2014
Description/Abstract: Jaguars (Panthera onca L.) have lived in the America’s for more than 2 million years, but thousands of years of range expansion were reversed in the last few hundred years, particularly on the northern margin of their range. The USFWS contracted the Wildlife Conservation Society to: 1) conduct a literature review of jaguar survey and monitoring techniques and methodologies; and 2) draft a jaguar survey and monitoring protocol for application in the NRU, and with relevance for monitoring the species range wide. In this first half of the task, we present the basics of jaguar monitoring. A monitoring program for jaguars and other large cats may have a number of objectives, with the most obvious and important being changes in area (range/habitat) occupied, and changes in abundance (numbers). Herein, we review literature pertinent to surveys and monitoring in general, and to jaguars in particular, addressing the conceptual and statistical frameworks for the most commonly applied survey and monitoring designs used by biologists and statisticians (this document).
Publisher: WCS
Full Citation: John Polisar, Tim G. O’Brien, Sean M. Matthews, Jon P. Beckmann, Eric W. Sanderson, Octavio Cesar Rosas-Rosas, and Carlos A. López-González. 2014. Review of Jaguar Survey and Monitoring Techniques and Methodologies A Submission to the U.S. Fish and Wildlife Service in Partial Fulfillment of Contract F13PX01563, submitted 27 March 2014. 135 pp.
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