KIN RECOGNITION

被引：50

作者：

PFENNIG, DW ^{[1
]}

SHERMAN, PW ^{[1
]}

机构：

[1] CORNELL UNIV,ITHACA,NY 14853

来源：

SCIENTIFIC AMERICAN | 1995年 / 272卷 / 06期

关键词：

D O I：

10.1038/scientificamerican0695-98

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This review looks at the mechanisms for distinguishing kin. Initially two theories for explaining kin recognition are outlined: inclusive fitness; and optimal outbreeding theory. Next, how organisms distinguish their relatives, is covered. Two mechanisms are involved: physical features (phenotypes); cues related to time or place; or a combination of the two. For instance bank swallows (Riparia riparia) use both direct and indirect methods, whereas Sea squirts (Botryllus schlosseri) rely exclusively on genetic labels. The authors then discuss how organisms use recognition cues to assess relatedness. Finally, one reasons for kin recognition is advanced, viz cannibalistic kin. It has been shown that cannibalistic spadefoot toad tadpoles (Scaphiopus bombifrons) avoid eating kin (depending on hunger level). They manage this avoidance by taking an exploratory bite, either then eating, or releasing if the tadpole is a sibling. -S.R.Harris

引用

页码：98 / 103

页数：6