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Melanistic leopards reveal their spots: Infrared camera traps provide a population density estimate of leopards in malaysia
The Journal of wildlife management, 2015-07, Vol.79 (5), p.846-853
Hedges, Laurie
Lam, Wai Yee
Campos-Arceiz, Ahimsa
Rayan, D. Mark
Laurance, William F.
Latham, Chris J.
Saaban, Salman
Clements, Gopalasamy Reuben
2015
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Hedges, Laurie
Lam, Wai Yee
Campos-Arceiz, Ahimsa
Rayan, D. Mark
Laurance, William F.
Latham, Chris J.
Saaban, Salman
Clements, Gopalasamy Reuben
Titel
Melanistic leopards reveal their spots: Infrared camera traps provide a population density estimate of leopards in malaysia
Ist Teil von
The Journal of wildlife management, 2015-07, Vol.79 (5), p.846-853
Ort / Verlag
Bethesda: Blackwell Publishing Ltd
Erscheinungsjahr
2015
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
To date, leopards (Panthera pardus) in Peninsular Malaysia have been overlooked by large carnivore researchers. This is in part due to the country's unique population of individuals that are almost all melanistic, which makes it nearly impossible to identify individuals using camera traps for estimating leopard density. We discovered a novel modification to infrared flash camera traps, which forces the camera into night mode, that allows us to consistently and clearly see the spots of a melanistic leopard. The aim of this project was 1) to determine the feasibility of identifying melanistic leopards with confidence using infrared flash camera traps, and 2) to establish a density estimate for the leopard population in a wildlife corridor in Malaysia using maximum likelihood and Bayesian spatially explicit capture-recapture (SECR) models. Both SECR approaches yielded a leopard density of approximately 3 individuals/100 km2. Our estimates represent the first density estimate of leopards in Malaysia and arguably, the world's first successful attempt to estimate the population size of a species with melanistic phenotypes. Because we have demonstrated that melanistic leopards can be monitored with confidence using infrared cameras, future studies should employ our approach instead of relying on scars or body shape for identification. Ultimately, our approach can facilitate more accurate assessments of leopard population trends, particularly in regions where melanistic phenotypes largely occur. © 2015 The Wildlife Society.
Sprache
Englisch
Identifikatoren
ISSN: 0022-541X
eISSN: 1937-2817
DOI: 10.1002/jwmg.901
Titel-ID: cdi_proquest_miscellaneous_1701478076
Format
–
Schlagworte
Animal populations
,
Animal traps
,
camera trap
,
Cameras
,
corridor
,
density estimate
,
Density estimation
,
Forest conservation
,
Habitat conservation
,
leopard
,
logged forest
,
mark-recapture
,
Maximum likelihood estimation
,
National parks
,
Panthera pardus
,
Peninsular Malaysia
,
Population estimates
,
Quantitative Approaches
,
Tigers
,
Wildcats
,
Wildlife conservation
,
Wildlife management
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