A Direct Observation of Infanticide by a Female Free‐Ranging Dog (Canis familiaris) Supports the Resource Competition Hypothesis [PDF]
Ecology and EvolutionInfanticide by females occurs in many mammalian species but is rarely observed directly, making its social and ecological determinants difficult to identify. Here, we report the first direct observation of within‐pack infanticide by a female free‐ranging
Melissa Vanderheyden +7 more
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The Benefit of Maternal Care and Infanticide by Males as Reproductive Strategies in a Caprellid Amphipod [PDF]
Ecology and EvolutionThe survival of juveniles is essential for the continuation of parental genes. Consequently, the presence or potential presence of juveniles can influence the behavior of parents as well as other conspecifics. Maternal care is a key behavioral adaptation
Kosei Nakano, Masakazu Aoki
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PVN-mPFC OT projections modulate pup-directed pup care or attacking in virgin mandarin voles [PDF]
eLifeMany species of animals exhibit caregiving or aggression toward conspecific offspring. The neural mechanisms underlying the infanticide and pup care remain poorly understood. Here, using monogamous mandarin voles (Microtus mandarinus), we found that more
Lu Li +11 more
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Female reproductive ageing persists despite high infanticide risk in chacma baboons and geladas [PDF]
Royal Society Open ScienceAcross mammals, fertility and offspring survival are often lowest at the beginning and end of females’ reproductive careers. However, extrinsic drivers of reproductive success—including infanticide by males—could stochastically obscure these expected age-
Jacob A. Feder +7 more
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Flexibility in female spatiotemporal behavioral tactics to counter infanticide risk during the mating season [PDF]
Movement EcologyBackground Parental care is exclusively provided by females in most mammals, and mothers use several spatiotemporal behavioral tactics to minimize risks to offspring and to enhance fitness of both the mother and offspring. In species with infanticide and
Rick W. Heeres +5 more
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Biology, 2022 In wild primates, infanticide is a risk that is especially prevalent when a new male takes over the alpha position. Insight into risk factors related to infanticide may decrease the incidence of infanticide in captivity during male introductions.
Karlijn Gielen +2 more
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Impact of male infanticide on the social structure of mountain gorillas. [PDF]
PLoS ONE, 2013 Infanticide can be a major influence upon the social structure of species in which females maintain long-term associations with males. Previous studies have suggested that female mountain gorillas benefit from residing in multimale groups because ...
Andrew M Robbins +6 more
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Female American black bears do not alter space use or movements to reduce infanticide risk. [PDF]
PLoS ONE, 2018 Infanticide occurs in a variety of animal species and infanticide risk has large implications for the evolution of behavior. Further, the sex hypothesis of sexual segregation predicts that for species in which infanticide occurs, females with dependent ...
D Cody Norton +5 more
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Female resistance to invading males increases infanticide in langurs. [PDF]
PLoS ONE, 2011 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.
Baoping Ren +4 more
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Sexually selected infanticide in a polygynous bat. [PDF]
PLoS ONE, 2011 BACKGROUND: Adult individuals of many species kill unrelated conspecific infants for several adaptive reasons ranging from predation or resource competition to the prevention of misdirected parental care.
Mirjam Knörnschild +3 more
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