La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Detecting declines of apex carnivores and evaluating their causes: An example with Zambian lions
Auteurs :	Elias Rosenblatt, Auteur ; Matthew S. Becker, Auteur ; Scott Creel, Auteur ; Egil Droge, Auteur ; Thandiwe Mweetwa, Auteur ; Paul A. Schuette, Auteur ; Fred Watson, Auteur ; Johnathan Merkle, Auteur ; Henry Mwape, Auteur
Type de document :	Article
Dans :	Biological Conservation (180 DEC 2014)
Article en page(s) :	176-186
Langues:	Anglais
Résumé :	Large carnivores are in rapid global decline, with a broad array of consequences for the ecosystems they inhabit. To efficiently detect and address these declines requires unbiased and precise demographic data. Unfortunately, the characteristics that make large carnivores extinction-prone also pose serious challenges to obtaining these data. Rapid survey methods exist, but provide only relative measures of abundance, cannot detect declines before they become large, and provide little or no information about the causes of decline. African lions (Panthera leo) are declining throughout their range, making accurate monitoring of remaining populations urgent. We provide statistically rigorous estimates of population size, trends, survival rate and age-sex structure from Zambia's South Luangwa lion population from 2008 to 2012, just prior to cessation of hunting in 2013. Mark-recapture models fit to data from intensive monitoring of 210 individual lions in 18 prides and

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