Sex-specific negotiation rules in a costly conflict over parental care
نویسندگان
چکیده
منابع مشابه
Sexual conflict over parental investment in repeated bouts: negotiation reduces overall care.
Understanding the evolution of parental care is complicated by the occurrence of evolutionary conflicts of interest within the family, variation in the quality and state of family members, and repeated bouts of investment in a family of offspring. As a result, family members are expected to negotiate over care. We present a model for the resolution of sexual conflict in which parents negotiate ...
متن کاملHow sex-biased dispersal affects conflict over parental investment
Existing models of parental investment have mainly focused on interactions at the level of the family, and have paid much less attention to the impact of population-level processes. Here we extend classical models of parental care to assess the impact of population structure and limited dispersal. We find that sex-differences in dispersal substantially affect the amount of care provided by each...
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Strong asymmetries in parental care, with one sex providing more care than the other, are widespread across the animal kingdom. At present, two factors are thought to ultimately cause sex differences in care: certainty of parentage and sexual selection. By contrast, we here show that the coevolution of care and the ability to care can result in strong asymmetries in both the ability to care and...
متن کاملBirth order, individual sex and sex of competitors determine the outcome of conflict among siblings over parental care.
Success in competition for limiting parental resources depends on the interplay between parental decisions over allocation of care and offspring traits. Birth order, individual sex and sex of competing siblings are major candidates as determinants of success in sib-sib competition, but experimental studies focusing on the combined effect of these factors on parent-offspring communication and wi...
متن کاملParental sex discrimination and intralocus sexual conflict.
Intralocus sexual conflict occurs when populations segregate for alleles with opposing fitness consequences in the two sexes. This form of selection is known to be capable of maintaining genetic and fitness variation in nature, the extent of which is sensitive to the underlying genetics. We present a one-locus model of a haploid maternal effect that has sexually antagonistic consequences for of...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2015
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2014.11.014