Observations of flipper rubbing in mother-calf pairs of captive bottlenose dolphins (Tursiops truncatus) suggest a body-surface care function
Observations of flipper rubbing in mother-calf pairs of captive bottlenose dolphins (Tursiops truncatus) suggest a body-surface care function
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对圈养宽吻海豚（Tursiops truncatus）母幼海豚鳍状肢摩擦的观察表明，它们具有体表护理功能
DOI：
10.1007/s10164-022-00754-1
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发表时间：
2022
影响因子：
0.9
通讯作者：
Kohshima Shiro
中科院分区：
文献类型：
--
作者：
Sakai Mai;Katsumata Hiroshi;Kohshima Shiro
宽吻海豚执行鳍摩擦，他们摩擦他们的合作伙伴与他们的胸鳍。认为类似于灵长类动物的社会梳理，具有社会和卫生功能，摩擦鳍状肢被认为具有一定的社会功能。然而，没有基于定量数据的报告来支持这种行为的卫生功能。在这项研究中，鳍摩擦和自我摩擦观察在一组三个圈养的母亲和小牛海豚对。在观察到的806次脚蹼对身体的摩擦中，有19.2%和276次自我摩擦中，有54%的死皮从摩擦的身体部位脱落。受试者接受的脚蹼与身体摩擦次数与他们的自我摩擦表现之间存在显著的负相关。这些结果表明，鳍状肢摩擦的功能是维护和照顾身体表面。在所有的母子配对中，母亲摩擦她的小牛比小牛摩擦母亲的次数要多得多。此外，当自己的孩子是他们的摩擦伙伴时，每个母亲成为橡胶的频率明显高于当伙伴是任何其他个体时。这些发现表明，摩擦鳍状肢是一种母亲对小牛的照顾行为。
Bottlenose dolphins perform flipper rubbing in which they rub their partners with their pectoral fins. Considered similar to social grooming in primates, which have social and hygienic functions, flipper rubbing has been suggested to possess certain social functions. However, there are no reports based on quantitative data to support a hygienic function of this behavior. In this study, flipper rubbing and self-rubbing were observed in a group of three captive mother–calf dolphin pairs. In 19.2% of the observed 806 flipper-to-body rubbings and 54% of the 276 self-rubbings, dead skin was shed from the rubbed body part. There was a significant negative correlation between the number of flipper-to-body rubbing episodes the subjects received and their performance of self-rubbing. These results suggest that a function of flipper rubbing is to maintain and care for the body surface. In all mother–calf pairs, the mother rubbed her calf significantly more often than the calf rubbed the mother. Furthermore, each mother became a rubber significantly more often when their own offspring was their rubbing partner than when the partner was any other individual. These findings suggest that flipper rubbing is a mother-to-calf caring behavior.