Elements of eusociality in colonies of Eustenogaster calyptodoma (Sakagami & Yoshikawa) (Stenogastrinae, Vespidae)
Elements of eusociality in colonies of Eustenogaster calyptodoma (Sakagami & Yoshikawa) (Stenogastrinae, Vespidae)
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Eustenogaster calyptodoma (Sakagami) 群体的真社会性要素
DOI：
10.1016/s0003-3472(87)80218-x
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发表时间：
1987
期刊：
影响因子：
2.5
通讯作者：
M. Hansell
中科院分区：
文献类型：
--
作者：
M. Hansell
黄蜂Eustenogaster calyptodomais处于社会复杂性的下限，其群体主要由一到两只雌性组成。然而，在这项研究中，存在明显的分工，最年长的雌性守卫巢穴入口，而年轻的雌性负责大部分觅食工作。这种分工是在没有任何明显的支配关系的情况下得以维持的。性别比例偏向雌性，这可以增强雌性留在母巢中的优势；然而，群体可能是一夫一妻制的，也可能是一夫多妻制的，亲缘关系的程度也可能是密切的或遥远的。因此，雌性之间的合作可能源于亲缘效应或保护巢穴和巢穴的共同利益。在出现后的一周内，年轻的雌性通常会离开巢穴，通过建造自己的巢穴或从另一只黄蜂手中夺走其中一只及其幼崽来建立一个群体。夺取巢穴似乎是在蜂群运行中快速获得援助的一种方法。因此，对雌性来说最有利的行动似乎是通过篡夺来建立自己的巢穴。未能找到的雌性可能会返回母巢。促进离开巢穴的因素可能包括由于一夫多妻制和巢穴篡夺而导致群体成员之间的相关性减弱，以及巢穴材料不令人满意。
The waspEustenogaster calyptodomais at the lower limit of social complexity with colonies predominantly of one or two females. Nevertheless, in this study there was a recognizable division of labour with the oldest female guarding the nest entrance while a younger female did most of the foraging for food. This division of labour was maintained in the absence of any obvious dominance relationship. There was a female-biased sex ratio which could enhance the advantage to a female of staying in the maternal nest; however, colonies may be monogynous or polygynous and degrees of relatedness close or remote. Cooperation between females may therefore result from kinship effects or mutual interest in protection of nest and brood. Within a week of emergence, a young female generally left the nest to found a colony either by building her own nest or by usurping one plus its brood from another wasp. Usurping brood appears to be a method of acquiring assistance quickly in the running of the colony. The most advantageous action for a female therefore appears to be to found her own nest by usurping. Females failing to found probably return to the maternal nest. Factors promoting nest leaving probably include diluted degrees of relatedness between colony members due to polygyny and nest usurping, as well as to unsatisfactory nest material.