Shriner WM
Animal Behavior Graduate Group and White Mountain Research Station, University of California at Davis
Anim Behav. 1998 Mar;55(3):529-36. doi: 10.1006/anbe.1997.0623.
When two species have predators in common, animals might be able to obtain important information about predation risk from the alarm calls produced by the other species. The behavioural responses of adult yellow-bellied marmots, Marmota flaviventris, and golden-mantled ground squirrels, Spermophilus lateralis, to conspecific and heterospecific alarm calls were studied to determine whether interspecific call recognition occurs in sympatric species that rarely interact. In a crossed design, marmot and squirrel alarm calls were broadcast to individuals of both species, using the song of a sympatric bird as a control. Individuals of both species responded similarly to conspecific and heterospecific anti-predator calls, and distinguished both types of alarms from the bird song. These results indicate that both marmots and squirrels recognized not only their own species' anti-predator vocalizations, but also the alarm calls of another species, and that these vocalizations were discriminated from an equally loud non-threatening sound. These findings suggest that researchers ought to think broadly when considering the sources of information available to animals in their natural environment. Copyright 1998 The Association for the Study of Animal Behaviour Copyright 1998 The Association for the Study of Animal Behaviour.
当两个物种有共同的捕食者时，动物或许能够从其他物种发出的警报叫声中获取有关捕食风险的重要信息。研究了成年黄腹土拨鼠（Marmota flaviventris）和金背地松鼠（Spermophilus lateralis）对同种和异种警报叫声的行为反应，以确定在很少相互作用的同域物种中是否存在种间叫声识别。在交叉设计中，将土拨鼠和松鼠的警报叫声播放给两个物种的个体，同时使用同域鸟类的歌声作为对照。两个物种的个体对同种和异种的反捕食者叫声反应相似，并能将这两种警报叫声与鸟鸣声区分开来。这些结果表明，土拨鼠和松鼠不仅能识别自己物种的反捕食者叫声，还能识别另一个物种的警报叫声，并且这些叫声能与同样响亮的无威胁声音区分开来。这些发现表明，研究人员在考虑动物在自然环境中可获取的信息来源时，应该进行广泛的思考。版权所有1998动物行为研究协会 版权所有1998动物行为研究协会。
