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一种多胚跳小蜂寄生蜂(Copidosoma属:膜翅目)中的孤雌生殖窝及性别比例

Unisexual broods and sex ratios in a polyembryonic encyrtid parasitoid (Copidosoma sp.: Hymenoptera).

作者信息

Walter G H, Clarke A R

机构信息

Department of Entomology, The University of Queensland, 4072, Brisbane, Queensland, Australia.

出版信息

Oecologia. 1992 Jan;89(1):147-149. doi: 10.1007/BF00319027.

Abstract

We examined brood sex ratios of an undetermined species of Copidosoma. Most broods (65%) were unisexual, with a greater proportion of female broods. Some mixed broods contained extremely small proportions of wasps of the opposite sex. Our results imply that the female-biased sex rations in this species cannot be explained by local mate competition theory.

摘要

我们研究了一种未确定种类的丽蝇蛹集金小蜂的育雏性别比例。大多数育雏(65%)是单性的,雌性育雏的比例更高。一些混合育雏中异性黄蜂的比例极小。我们的结果表明,该物种中偏向雌性的性别比例无法用本地配偶竞争理论来解释。

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