Isotopic evidence for dietary ecology of cave lion (Panthera spelaea) in North-Western Europe: Prey choice, competition and implications for extinction
Isotopic evidence for dietary ecology of cave lion (Panthera spelaea) in North-Western Europe: Prey choice, competition and implications for extinction
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DOI：
10.1016/j.quaint.2011.02.023
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发表时间：
2011-12-06
影响因子：
2.2
通讯作者：
Ziegler, Reinhard
中科院分区：
文献类型：
--
作者：
Bocherens, Herve;Drucker, Dorothee G.;Ziegler, Reinhard
已灭绝的洞穴狮Panthera spelaea的猎物选择是使用骨胶原同位素特征在比利时阿登和施瓦本汝拉之间40，000和25，000年前，以及在晚冰期的阿尔卑斯山西北部前陆和巴黎盆地。本文分析了来自25个地点的与洞狮同时代的370多件大型食肉和草食哺乳动物标本。同位素结果表明，洞穴狮子的猎物选择具有个人主义倾向，一些个体更倾向于驯鹿，另一些则更倾向于年轻的洞穴熊。洞穴狮子的同位素特征和饮食选择与洞穴鬣狗没有重叠，表明大型捕食者之间的竞争性排斥。最近的西欧洞穴狮子似乎主要以驯鹿为食，直到这种猎物物种在当地灭绝，这与它们自己的灭绝时间一致。这种有限的猎物选择可能与这种大型捕食者在西欧的灭绝有关。(C)2011 Elsevier Ltd和INQUA。
The prey choice of extinct cave lions Panthera spelaea was determined using bone collagen isotopic signatures in the Belgian Ardennes and the Swabian Jura between 40,000 and 25,000 years ago as well as in the Late-glacial of the northwestern Alp foreland and of the Paris Basin. More than 370 specimens of large carnivorous and herbivorous mammals from 25 sites coeval with cave lion were analyzed. The isotopic results point to an individualistic prey choice for cave lions, with some individuals more oriented on reindeer and others on young cave bears. The isotopic signatures and therefore dietary choice of cave lions did not overlap with those of cave hyenas, indicating competitive exclusion between the large predators. The most recent western European cave lions seem to have been consuming mainly reindeer until the local extirpation of this prey species, which coincides chronologically with their own extinction. This restricted prey choice may be involved in the extinction of this large predator in Western Europe. (C) 2011 Elsevier Ltd and INQUA.