气候变化领域集成服务门户(CCPortal): The evolution of eusociality: no risk-return tradeoff but the ecology matters

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DOI	10.1111/ele.13452
	The evolution of eusociality: no risk-return tradeoff but the ecology matters
	Field J.; Toyoizumi H.
发表日期	2020
ISSN	1461023X
卷号	23 期号:3
英文摘要	The origin of eusociality in the Hymenoptera is a question of major interest. Theory has tended to focus on genetic relatedness, but ecology can be just as important a determinant of whether eusociality evolves. Using the model of Fu et al. (2015), we show how ecological assumptions critically affect the conclusions drawn. Fu et al. inferred that eusociality rarely evolves because it faces a fundamental ‘risk-return tradeoff’. The intuitive logic was that worker production represents an opportunity cost because it delays realising a reproductive payoff. However, making empirically justified assumptions that (1) workers take over egg-laying following queen death and (2) productivity increases gradually with each additional worker, we find that the risk-return tradeoff disappears. We then survey Hymenoptera with more specialised morphological castes, and show how the interaction between two common features of eusociality – saturating birth rates and group size-dependent helping decisions – can determine whether eusociality outperforms other strategies. © 2019 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Bees; bet-hedging; eusociality; Hamilton's Rule; Hymenoptera; inheritance; social behaviour; social evolution; wasps
语种	英语
scopus关键词	Apoidea; Hymenoptera; animal; ecology; evolution; genetic selection; Hymenoptera; social behavior; Animals; Biological Evolution; Ecology; Hymenoptera; Selection, Genetic; Social Behavior
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120929
作者单位	Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Cornwall, TR10 9EZ, United Kingdom; Graduate School of Accounting and Department of Applied Mathematics, Waseda University, Nishi-waseda 1-6-1, Shinjuku, Tokyo 169-8050, Japan
推荐引用方式 GB/T 7714	Field J.,Toyoizumi H.. The evolution of eusociality: no risk-return tradeoff but the ecology matters[J],2020,23(3).
APA	Field J.,&Toyoizumi H..(2020).The evolution of eusociality: no risk-return tradeoff but the ecology matters.Ecology Letters,23(3).
MLA	Field J.,et al."The evolution of eusociality: no risk-return tradeoff but the ecology matters".Ecology Letters 23.3(2020).