原始真社会性蜜蜂中的适应性群体性别比例。

Adaptive colony sex ratios in primitively eusocial bees.

机构信息

J.J. Boomsma is at the Dept of Ecology and Genetics, University of Aarhus, DK-8000 Aarhus C, Denmark.

出版信息

Trends Ecol Evol. 1991 Mar;6(3):92-5. doi: 10.1016/0169-5347(91)90182-W.

Abstract

Colony-level predictions about sex-ratio optimization in eusocial Hymenoptera are different from the ones that apply to the population level. A recent empirical study on the sweat bee Halictus rubicundus has revealed a distinct pattern in the colony sex ratio of the summer brood: eusocial colonies produced more female-biased sex ratios and non-eusocial colonies produce more male-biased sex ratios. These data are consistent with theoretical hypotheses as put forward by Trivers and Hare and several later authors. When interpreted in the light of these theoretical contentions, the sex-ratio variation in Halictus rubicundus appears to be adaptive for workers, replacement queens and - under reasonable additional assumptions - also for foundresses.

摘要

群体水平上关于社会性膜翅目昆虫性别比例优化的预测与种群水平上的预测不同。最近对汗蜂 Halictus rubicundus 的一项实证研究揭示了夏季幼虫群体中群体性别比例的明显模式：社会性群体产生了更多的雌性偏性性别比例，而非社会性群体产生了更多的雄性偏性性别比例。这些数据与 Trivers 和 Hare 以及后来的几位作者提出的理论假设一致。根据这些理论论点进行解释时，Halictus rubicundus 的性别比例变化似乎对工蜂、替代蜂王以及——在合理的额外假设下——对创立者都是适应性的。