Multilevel societies facilitate infanticide avoidance through increased extrapair matings
نویسندگان
چکیده
منابع مشابه
Female-solicited extrapair matings in Humboldt penguins fail to produce extrapair fertilizations
Michael K. Schwartz, Daryl J. Boness, Catherine M. Schaeff, Patricia Majluf, Elizabeth A. Perry, and Robert C. Fleischer ^Department of Zoological Research, National Zoological Park, Smithsonian Institution, Washington, DC 20008, USA, ^Department of Biology, American University, 4400 Massachusetts Avenue, Washington, DC 20016, USA, and Wildlife Conservation Society, Paul de Beaudiez 520, Lima 2...
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The discovery that extrapair copulation (EPC) and extrapair paternity (EPP) are common in birds led to a paradigm shift in our understanding of the evolution of mating systems. The prevalence of extrapair matings in pair-bonded species sets the stage for sexual conflict, and a recent focus has been to consider how this conflict can shape variation in extrapair mating rates. Here, we invert the ...
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Previous studies of mutation modification have considered models in which selection is a result of viability differences that are sex symmetric. The results of a numerical study of a model in which selection is a result of fertility differences between mated pairs demonstrate that the type of selection to which a population is subject can have a significant impact on the evolution of various pa...
متن کاملFertility assurance through extrapair fertilizations and male paternity defense.
Extrapair paternity has been observed in many formally monogamous species. Male pursuit of extrapair fertilizations is explained by the advantages of having offspring that receive essential paternal care from other males. Since females are capable of exercising a degree of control over the post-copulatory sperm competition, extrapair paternity cannot persist unless it confers fitness benefits o...
متن کاملInfanticide
I if When I visited the hospital I knew that the birth had taken place about a week before, so I went prepared to see an almost completely recovered young mother, to admire the baby and chat hilariously about the shocks and indignities of the labour ward. It was normal visiting hours so it did not occur to me to ask a nurse if I could see her. Knowing the number of her room, I went straight up ...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2020
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2019.12.014