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首页> 外文期刊>Canadian Journal of Zoology >Individually distinctive pup vocalizations fail to prevent allo-suckling in grey seals
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Individually distinctive pup vocalizations fail to prevent allo-suckling in grey seals

机译：个别独特的幼崽发声无法阻止灰海豹的同种异体

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摘要

In crowded aggregations that occur in breeding colonies, female pinnipeds commonly become separated from their pups and may use spatial, olfactory, or auditory cues to locate them. A system of mutual recognition based on vocalizations is known for otariids. Female phocids are known to use location and olfaction to help identify pups, but evidence for vocal recognition is weak. During the 1997 breeding season on the Isle of May, Scotland, vocalizations were recorded from grey seal, Halichoerus grypus, pups; playback experiments were carried out; and nursing of non-filial pups was observed. Pup vocalizations were found to be both stereotyped and individually distinctive, features normally associated with a system of individual recognition. However,playback experiments revealed that mothers did not respond more to vocalizations of their own pups than to those of non-filial pups. Furthermore, 17 cases of allo-suckling were observed during 68 h of observation on the colony. High densities of animalsand frequent separations present challenges to identification of pups by their mothers.
机译：在繁殖群体中发生的拥挤聚集中，雌性nip鱼通常会与它们的幼崽分开，并可能使用空间，嗅觉或听觉线索来定位它们。基于发声的相互识别系统对于otariids是已知的。众所周知，女性怪兽会使用位置和嗅觉来帮助识别幼崽，但是语音识别的证据却很少。在1997年苏格兰五月岛的繁殖季节期间，从灰海豹，长嘴猴，幼崽中记录了发声。进行回放实验;观察非孝仔的护理。发现幼崽发声既定型又具有独特性，这些特征通常与个人识别系统相关。但是，回放实验显示，母亲对自己幼崽发声的反应比非孝顺幼崽的发声要多。此外，在菌落观察68小时期间观察到17例同种异体哺乳。高密度的动物和频繁的分离为母犬识别幼犬带来了挑战。

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