ECOLOGY AND EVOLUTION OF SOCIAL ORGANIZATION: Insights from Fire Ants and Other Highly Eusocial Insects
ECOLOGY AND EVOLUTION OF SOCIAL ORGANIZATION: Insights from Fire Ants and Other Highly Eusocial Insects
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社会组织的生态学和进化：来自火蚁和其他高度社会性昆虫的见解
DOI：
10.1146/annurev.es.26.110195.003215
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
L. Keller
中科院分区：
文献类型：
--
作者：
K. Ross;L. Keller
群居生物在其社会组织的各个方面都表现出明显的种内变异。在高度社会化的Hyplittera中，这种变异的一个突出例子是每个殖民地的生殖女王数量的差异，蚂蚁中女王数量的差异与许多生殖和社会特征的差异有关，包括女王表型和繁殖策略，殖民地生殖模式和性别分配模式。我们研究的原因和后果的变化，在殖民地女王的数量和相关的特征，使用火蚁红火蚁作为一个主要模型。生态限制模式的殖民地成立可能会作为重要的选择性力量，导致女王数量的演变，在这个和许多其他蚂蚁，社会组织一般延续跨代的社会环境塑造适当的女王表型和生殖策略。蚁后数量的变化对巢内的遗传结构有深远的影响，也可能影响更高层次的遗传结构（聚集的巢或当地的群落），因为蚁后数量与特定的交配和传播习惯的关联。具有不同社会组织的种群之间的繁殖习惯的差异有可能促进这些社会变体之间的遗传分化。因此，社会组织的进化在产生内在的选择机制，引导随后的社会进化和启动显着的种群遗传结构的发展，包括在分支发生中重要的基因流的障碍，可以是重要的。
Social organisms exhibit conspicuous intraspecific variation in all facets of their social organization. A prominent example of such variation in the highly eusocial Hymenoptera is differences in the number of reproductive queens per colony, Differences in queen number in ants are associated with differences in a host of reproductive and social traits, including queen phenotype and breeding strategy, mode of colony reproduction, and pattern of sex allocation. We examine the causes and consequences of changes in colony queen number and associated traits using the fire ant Solenopsis invicta as a principal model. Ecological constraints on mode of colony founding may act as important selective forces causing the evolution of queen number in this and many other ants, with social organization generally perpetuated across generations by means of the social environment molding appropriate queen phenotypes and reproductive strategies. Shifts in colony queen number have profound effects on genetic structure within nests and may also influence genetic structure at higher levels (aggregations of nests or local demes) because of the association of queen number with particular mating and dispersal habits. Divergence of breeding habits between populations with different social organizations has the potential to promote genetic differentiation between these social variants. Thus, evolution of social organization can be important in generating intrinsic selective regimes that channel subsequent social evolution and in initiating the development of significant population genetic structure, including barriers to gene flow important in cladogenesis.