title: Sex differences in spatial ability: a test of the range size hypothesis in the order Carnivora.
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.
authors.affiliation: Georgia Institute of Technology, School of Psychology, 654 Cherry Street, Atlanta, GA 30332, USA. bonnie.perdue@gatech.edu
authors.forename: Bonnie M
authors.initials: BM
authors.lastname: Perdue
authors.forename: Rebecca J
authors.initials: RJ
authors.lastname: Snyder
authors.forename: Zhang
authors.initials: Z
authors.lastname: Zhihe
authors.forename: M Jackson
authors.initials: MJ
authors.lastname: Marr
authors.forename: Terry L
authors.initials: TL
authors.lastname: Maple
mesh_terms: D000818:Animals; D005260:Female; D008297:Male; D010041:Otters / Q000523:psychology*; D012727:Sex Characteristics; D013037:Spatial Behavior; D013731:Territoriality; D001503:Ursidae / Q000523:psychology*