WRESTLING PLAY IN ADULT RIVER OTTERS, LUTRA-CANADENSIS

被引:9
作者
BECKEL, AL
机构
[1] UNIV MINNESOTA, DEPT ECOL & BEHAV BIOL, MINNEAPOLIS, MN 55455 USA
[2] UNIV WISCONSIN, CTR LIMNOL, MADISON, WI 53706 USA
关键词
D O I
10.2307/1382111
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Seasonal changes in frequencies of wrestling among 16 adult river otters (Lutra canadensis) in six different captive groups (two groups of four animals and four groups of two) were investigated. Initiators of wrestling and choice of wrestling partners were identified. All otters wrestled, some as often as 15-20 bouts/h. They wrestled significantly less often during the breeding season than in months preceding the breeding season. Females and males wrestled at similar rates, but mixed-sex wrestling bouts were initiated by females almost twice as often as by males. In same-sex bouts, dominant otters initiated wrestling nearly 5 times as often as subordinates.
引用
收藏
页码:386 / 390
页数:5
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