DOI: 10.1111/ele.13452
论文题名: The evolution of eusociality: no risk-return tradeoff but the ecology matters
作者: Field J. ; Toyoizumi H.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 3 起始页码: 518
结束页码: 526
语种: 英语
中文关键词: Bees
; bet-hedging
; eusociality
; Hamilton's Rule
; Hymenoptera
; inheritance
; social behaviour
; social evolution
; wasps
英文关键词: Apoidea
; Hymenoptera
; animal
; ecology
; evolution
; genetic selection
; Hymenoptera
; social behavior
; Animals
; Biological Evolution
; Ecology
; Hymenoptera
; Selection, Genetic
; Social Behavior
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166621
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Field J.,Toyoizumi H.. The evolution of eusociality: no risk-return tradeoff but the ecology matters[J]. Ecology Letters,2020-01-01,23(3)