性别的空间能力差异：在食肉目动物中检验范围大小假说。
Sex differences in spatial ability: a test of the range size hypothesis in the order Carnivora.
机构信息
Georgia Institute of Technology, School of Psychology, 654 Cherry Street, Atlanta, GA 30332, USA.
出版信息
Biol Lett. 2011 Jun 23;7(3):380-3. doi: 10.1098/rsbl.2010.1116. Epub 2011 Jan 26.
Abstract
Sex differences in spatial cognition have been reported for many species ranging from voles to humans. The range size hypothesis predicts that sex differences in spatial ability will only occur in species in which the mating system selects for differential range size. Consistent with this prediction, we observed sex differences in spatial ability in giant pandas, a promiscuous species in which males inhabit larger ranges than females, but did not observe sex differences in Asian small-clawed otters, a related monogamous species in which males and females share home ranges. These results provide the first evidence of sex differences in spatial ability in the order Carnivora, and are consistent with the range size hypothesis.
摘要
性别的空间认知差异在从田鼠到人类等多种物种中都有报道。范围大小假说预测，只有在交配系统选择不同范围大小的物种中，才会出现空间能力的性别差异。与这一预测一致，我们观察到大熊猫（一种滥交物种，雄性的活动范围比雌性大）的空间能力存在性别差异，但在亚洲小爪水獭（一种亲缘关系密切的一夫一妻制物种，雄性和雌性共享活动范围）中没有观察到性别差异。这些结果首次提供了在食肉目动物中空间能力存在性别差异的证据，并且与范围大小假说一致。
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