Infanticide by males and its implications
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منابع مشابه
Management implications of capybara (Hydrochoerus hydrochaeris) social behavior
Capybaras (Hydrochoerus hydrochaeris) are the world’s largest rodent. Free-living populations are commercially harvested for their meat and leather in Colombia, Venezuela and Argentina; however, there is concern that legal and illegal harvesting is not sustainable. Since capybaras are considered an economic resource, there have been several attempts to explore the effect of different hunting st...
متن کاملSexual conflict. The evolution of infanticide by males in mammalian societies.
Male mammals often kill conspecific offspring. The benefits of such infanticide to males, and its costs to females, probably vary across mammalian social and mating systems. We used comparative analyses to show that infanticide primarily evolves in social mammals in which reproduction is monopolized by a minority of males. It has not promoted social counterstrategies such as female gregariousne...
متن کاملMating strategies in primates: a game theoretical approach to infanticide.
Infanticide by newly immigrated or newly dominant males is reported among a variety of taxa, such as birds, rodents, carnivores and primates. Here we present a game theoretical model to explain the presence and prevalence of infanticide in primate groups. We have formulated a three-player game involving two males and one female and show that the strategies of infanticide on the males' part and ...
متن کاملWhy Mothers Do Not Resist Infanticide: a Cost-benefit Genetic Model.
Infanticide has recently been observed in several primate species while female counterstrategies are seemingly rare. The question of why mothers do not increase their resistance to infanticide is investigated using a haploid two-locus model. A hypothesis that mothers can recover lost offspring by gaining more grandchildren is rejected in most cases, and it is shown that costs and benefits for b...
متن کاملFemale Resistance to Invading Males Increases Infanticide in Langurs
BACKGROUND Infanticide by adult male occurs in many mammalian species under natural conditions, and it is often assumed to be a goal-directed action and explained predominately by sexual selection. Motivation of this behavior in mammals is limitedly involved. METHODOLOGY AND PRINCIPAL FINDINGS We used long-term reproductive records and direct observation in captivity and in the field of two s...
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تاریخ انتشار 2000