Colony reproductive structure in a polygyne population of Solenopsis geminata (Hymenoptera: Formicidae).
Colony reproductive structure in a polygyne population of Solenopsis geminata (Hymenoptera: Formicidae).
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红火蚁 (Solenopsis geminata) 多雌种群的群体生殖结构（膜翅目：蚁科）。
DOI：
10.1093/aesa/86.4.441
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
E. Vargo
中科院分区：
文献类型：
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作者：
E. Vargo
火蚁(Solenopsis gminata(F.))和金翅蚁种群的许多成员一样，形成了单雌(单女王)和多雌(多女王)的群体。为了进一步了解与火蚁蚁后数量变化相关的成本和收益，在该物种的一个本地一夫多妻种群中进行了群体生殖结构(即巢后数量及其繁殖产量的变化)的调查。据估计，每个巢中的蜂王数量约为30只，范围在3到90只之间。在实验室中，在一夫多妻制条件下单独建立的一夫多妻制蜂王比在一夫多妻制条件下建立的蜂王有更高的产卵率，并产生大约50倍的有性后代。在一夫多妻制群体中，女王繁殖成功的减少并不是所有个体都平均分享的。在这些蜂群中，大约40%的产卵女王是未受精的，因此只能产生雄性后代。然而，这些个体在很大程度上产生了不能存活的卵子。在受精的蜂王中，产卵率和卵存活率都存在差异，这表明在短期和可能的长期内，筑巢的蜂群在实现繁殖成功方面可能会有显著的差异。参照引进红火蚁多雌群体的繁殖结构特征，对这一结果进行了讨论，该群体与本地红火蚁种群有许多相似之处。
The fire ant, Solenopsis geminata (F.), like many members of the S. geminata species group, forms both monogyne (single-queen) and polygyne (multiple-queen) colonies. To further understanding of the costs and benefits associated with variation in queen number in fire ants, investigations of colony reproductive structure (i.e., the number of nestmate queens and variation in their reproductive output) were undertaken in a native polygyne population of this species. The number of queens per nest is estimated to be about 30, with a range of 3 to 90. In the laboratory, queens from polygyne colonies set up individually under monogyne conditions had a higher oviposition rate and produced about 50 times more sexual offspring than queens maintained under polygyne conditions. The reduced reproductive success of queens in polygyne colonies is not evenly shared among all individuals. About 40% of the egg-laying queens in these colonies are uninseminated and therefore able to produce only male offspring. However, these individuals produce largely nonviable eggs. Among inseminated queens there is variation in both oviposition rate and egg viability, which suggests that nestmates may differ significantly in their realized reproductive success over the short and possibly long term. The results are discussed with reference to the well-characterized reproductive structure of polygyne colonies of the red imported fire ant, S. invicta Buren, with which this native population of S. geminata shares many similarities.