Evaluation of Camera Trapping for Estimating Red Fox Abundance
Identifieur interne : 000596 ( Main/Exploration ); précédent : 000595; suivant : 000597Evaluation of Camera Trapping for Estimating Red Fox Abundance
Auteurs : Pedro Sarmento [Portugal] ; Joana Cruz [Portugal] ; Catarina Eira [Portugal] ; Carlos Fonseca [Portugal]Source :
- The Journal of Wildlife Management [ 0022-541X ] ; 2009-09.
English descriptors
- KwdEn :
Abstract
ABSTRACT The nature reserve Serra da Malcata, Portugal, was recently considered a site for Iberian lynx (Lynx pardinus) reintroduction. Because of potential disease risk posed by red foxes (Vulpes vulpes) in the area, a reliable estimate of fox abundance was critical for a dependable reintroduction program. We adapted camera‐trapping techniques for estimating red fox abundance in the reserve. From July 2005 to August 2007, we conducted 7 camera‐trapping sessions, allowing for individual identification of foxes by physical characteristics. We estimated abundance using the heterogeneity (Mh) model of the software program CAPTURE. Estimated density ranged from 0.91 ± 0.12 foxes/km2to 0.74 ± 0.02 foxes/km2. By estimating red fox density, it is possible to define the number of foxes that must be sampled to assess the presence of potential fox‐transmitted diseases that may affect lynx reintroduction.
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DOI: 10.2193/2008-288
Affiliations:
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Le document en format XML
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<front><div type="abstract">ABSTRACT The nature reserve Serra da Malcata, Portugal, was recently considered a site for Iberian lynx (Lynx pardinus) reintroduction. Because of potential disease risk posed by red foxes (Vulpes vulpes) in the area, a reliable estimate of fox abundance was critical for a dependable reintroduction program. We adapted camera‐trapping techniques for estimating red fox abundance in the reserve. From July 2005 to August 2007, we conducted 7 camera‐trapping sessions, allowing for individual identification of foxes by physical characteristics. We estimated abundance using the heterogeneity (Mh) model of the software program CAPTURE. Estimated density ranged from 0.91 ± 0.12 foxes/km2to 0.74 ± 0.02 foxes/km2. By estimating red fox density, it is possible to define the number of foxes that must be sampled to assess the presence of potential fox‐transmitted diseases that may affect lynx reintroduction.</div>
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