Haplodiploidy, Sex-Ratio Adjustment, and Eusociality
نویسندگان
چکیده
منابع مشابه
Haplodiploidy, sex-ratio adjustment, and eusociality.
Hamilton's "haplodiploidy hypothesis" holds that inflated sororal relatedness has promoted altruistic sib rearing in haplodiploids, potentially explaining their apparent predisposition to eusociality. Here, we suggest that haplodiploidy may instead promote eusociality simply by facilitating sex-ratio adjustment. Specifically, haplodiploidy may enable sex-ratio bias toward the more helpful sex, ...
متن کاملHaplodiploidy and the evolution of eusociality: split sex ratios.
It is generally accepted that from a theoretical perspective, haplodiploidy should facilitate the evolution of eusociality. However, the "haplodiploidy hypothesis" rests on theoretical arguments that were made before recent advances in our empirical understanding of sex allocation and the route by which eusociality evolved. Here we show that several possible promoters of the haplodiploidy effec...
متن کاملDynamics of sex ratio and female unmatedness under haplodiploidy
Haplodiploid sex determination allows unmated females to produce sons. Consequently, a scarcity of males may lead to a significant proportion of females remaining unmated, which may in turn give rise to a surfeit of males in the following generation. Stable oscillation of the sex ratio has been predicted by classic models, and it remains a puzzle as to why this is not observed in natural popula...
متن کاملHaplodiploidy and the evolution of eusociality: worker revolution.
Hamilton suggested that inflated relatedness between sisters promotes the evolution of eusociality in haplodiploid populations. Trivers and Hare observed that for this to occur, workers have to direct helping preferentially toward the production of sisters. Building on this, they proposed two biological scenarios whereby haplodiploidy could act to promote the evolution of eusociality: (a) worke...
متن کاملHaplodiploidy and the evolution of eusociality: worker reproduction.
Hamilton's haplodiploidy hypothesis suggests that the relatively higher relatedness of full sisters in haplodiploid populations promotes altruistic sib rearing and, consequently, the evolution of eusociality. This haplodiploidy effect works when some broods have a relatively female-biased sex ratio and other broods have a relatively male-biased sex ratio, termed split sex ratios. There is empir...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 2013
ISSN: 0003-0147,1537-5323
DOI: 10.1086/669147