A paradox of local abundance amidst regional rarity: the value of montane refugia for Persian leopard conservation

The population densities of leopards vary widely across their global range, influenced by prey availability, intraguild competition and human persecution. In Asia, particularly the Middle East and the Caucasus, they generally occur at the lower extreme of densities recorded for the species. Reliable...

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Bibliographic Details
Published in:Scientific reports 2019-10, Vol.9 (1), p.14622-12, Article 14622
Main Authors: Farhadinia, Mohammad S., McClintock, Brett T., Johnson, Paul J., Behnoud, Pouyan, Hobeali, Kaveh, Moghadas, Peyman, Hunter, Luke T. B., Macdonald, David W.
Format: Article
Language:English
Subjects:
631/158/1745
631/158/672
Abundance
Bayesian analysis
Cameras
Capture-recapture studies
Conservation
Humanities and Social Sciences
Mountain regions
multidisciplinary
National parks
Panthera pardus saxicolor
Pelage
Population density
Prey
Refugia
Science
Science (multidisciplinary)
Water resources
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Summary:The population densities of leopards vary widely across their global range, influenced by prey availability, intraguild competition and human persecution. In Asia, particularly the Middle East and the Caucasus, they generally occur at the lower extreme of densities recorded for the species. Reliable estimates of population density are important for understanding their ecology and planning their conservation. We used a photographic spatial capture-recapture (SCR) methodology incorporating animal movement to estimate density for the endangered Persian leopard Panthera pardus saxicolor in three montane national parks, northeastern Iran. We combined encounter history data arising from images of bilaterally asymmetrical left- and right-sided pelage patterns using a Bayesian spatial partial identity model accommodating multiple “non-invasive” marks. We also investigated the effect of camera trap placement on detection probability. Surprisingly, considering the subspecies’ reported low abundance and density based on previous studies, we found relatively high population densities in the three national parks, varying between 3.10 ± SD 1.84 and 8.86 ± SD 3.60 individuals/100 km 2 . The number of leopards detected in Tandoureh National Park (30 individuals) was larger than estimated during comparable surveys at any other site in Iran, or indeed globally. Capture and recapture probabilities were higher for camera traps placed near water resources compared with those placed on trails. Our results show the benefits of protecting even relatively small mountainous areas, which accommodated a high density of leopards and provided refugia in a landscape with substantial human activity.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-50605-2