Adult sex ratio variation: implications for breeding system evolution

@article{Szkely2014AdultSR,
  title={Adult sex ratio variation: implications for breeding system evolution},
  author={T. Sz{\'e}kely and F. Weissing and J. Komdeur},
  journal={Journal of Evolutionary Biology},
  year={2014},
  volume={27}
}
Adult sex ratio (ASR) exhibits immense variation in nature, although neither the causes nor the implications of this variation are fully understood. According to theory, the ASR is expected to influence sex roles and breeding systems, as the rarer sex in the population has more potential partners to mate with than the more common sex. Changes in mate choice, mating systems and parental care suggest that the ASR does influence breeding behaviour, although there is a need for more tests… Expand
Demographic causes of adult sex ratio variation and their consequences for parental cooperation
TLDR
It is shown that these closely related populations express strikingly different ASRs, despite having similar ecologies and life histories, and that ASR variation is largely driven by sex differences in the apparent survival of juveniles. Expand
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Demographic causes of adult sex ratio variation and their consequences for parental cooperation
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The genetic sex-determination system predicts adult sex ratios in tetrapods
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The genetic sex-determination system explains 24% of interspecific variation in ASRs in amphibians and 36% in reptiles, and several genetic factors could contribute to this pattern, including meiotic drive and sex-linked deleterious mutations. Expand
Sex-biased survival predicts adult sex ratio variation in wild birds
TLDR
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TLDR
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TLDR
The first inter-disciplinary collection of research on the causes and consequences of variation in the adult sex ratio in human and animal societies is introduced, revealing that the ASR plays a major role in determining population viability, especially in small populations and species with labile sex determination. Expand
Sex roles and adult sex ratios: insights from mammalian biology and consequences for primate behaviour
  • P. Kappeler
  • Biology, Medicine
  • Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2017
TLDR
It is argued that studies examining sex role variation at more specific levels need to take social organization into account to identify meaningful levels for the measurement of AsR and to account for the fact that ASR and sex roles mutually influence each other. Expand
Female dispersion and sex ratios interact in the evolution of mating behavior: a computational model
TLDR
An agent-based model is used to examine how different mating behaviors evolve in a population under different conditions related to these putative drivers, looking to understand the interaction between them and finds an interaction among different factors in the evolution of social monogamy. Expand
Adult sex ratios and their implications for cooperative breeding in birds
TLDR
It is found that ASR (among both cooperatively and non-cooperatively breeding species) is inversely related to sex bias in dispersal distance, suggesting that the cost of dispersal is more severe for the further-dispersing sex. Expand
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