期刊
ECOLOGY LETTERS
卷 3, 期 4, 页码 300-308出版社
WILEY-BLACKWELL
DOI: 10.1046/j.1461-0248.2000.00155.x
关键词
dispersal; kin recognition; Laceita vivipara
类别
Kin competition is known to strongly influence the spacing behaviour of juveniles in the common lizard, a species which is only weakly social and has no parental care. We examined whether variation in offspring dispersal propensity was associated with variation in their ability to discriminate odours of their mothers versus unknown females. We caught pregnant females in two populations and reared them in the laboratory until parturition. Just after birth, we recorded the juvenile response to the odour of either their mother or an unrelated female. Mothers and offspring were then released at the mother's last capture point, and juvenile movement was monitored by recapture for 2 years. Philopatric individuals were more attracted to the odour of their mother and more repulsed by the odour of an unrelated female than dispersers. In this species, ability to discriminate maternal cues appears to be implied in the spacing behaviour of juveniles. Since juvenile males and females reacted in the same way, the main role of mother discrimination is likely to be the avoidance of kin competition by promoting juvenile dispersal. This does not necessary require mother discrimination to imply mother recognition, or not to be implied in other functions such as inbreeding avoidance. Further research is needed to clarify these points. We suggest that context-dependent kin discrimination may be involved in the spacing behaviour of a large number of species, even for those species where ether social functions for kin discrimination have been proposed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据