Intraspecific predation on a subadult brown bear in Greece
Intraspecific predation on a subadult brown bear in Greece
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DOI：
10.2192/ursus-d-15-00003.1
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发表时间：
2015-01-01
期刊：
影响因子：
1.3
通讯作者：
Papakostas, Giorgos
中科院分区：
文献类型：
--
作者：
Karamanlidis, Alexandros A.;Beecham, John J.;Papakostas, Giorgos
种内捕食（同类相食）在棕熊（熊）是一种行为很少记录，它仍然知之甚少。2010年4月，我们记录了一只亚成年雄性熊可能杀死并部分消耗了一只亚成年雌性熊;这两只熊都是在希腊北方进行遥测研究时捕获的。雄性犬类之间的距离、雌性身上的致命伤口以及陷阱地点没有其他熊的踪迹之间的匹配支持了种内杀戮;诱捕小组直接目睹了亚成年雄性对亚成年雌性的消耗。这是第一次报告的情况下，可能种内杀害和捕食的亚成年女性的亚成年男性棕熊。虽然种内捕食似乎是一种罕见的现象，诱捕团队应始终努力减少动物被捕获在陷阱中的时间，如使用陷阱警报。
Intraspecific predation (cannibalism) in brown bears (Ursus arctos) is a behavior rarely documented, and it remains poorly understood. In April 2010 we documented the probable killing and partial consumption of a subadult female bear by a subadult male bear; both bears had been captured during a telemetry study in northern Greece. Intraspecific killing was supported by a match between the inter-canine distance of the male, fatal wounds on the female, and the absence of other bear tracks at the trap site; consumption of the subadult female by the subadult male was witnessed directly by the trapping team. This is the first reported case of probable intraspecific killing and predation of a subadult female by a subadult male brown bear. Though intraspecific predation appears to be a rare phenomenon, trapping teams should always strive to reduce the time an animal is captured in a trap, such as by using trap alarms.