Infanticide and maternal aggression: Synchrony of male and female reproductive strategies in mice
作者:
Luci Paul,
期刊:
Aggressive Behavior
(WILEY Available online 1986)
卷期:
Volume 12,
issue 1
页码: 1-11
ISSN:0096-140X
年代: 1986
DOI:10.1002/1098-2337(1986)12:1<1::AID-AB2480120102>3.0.CO;2-1
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: infanticide;maternal aggression;paternity;reproductive strategies;mice;strain differences
数据来源: WILEY
摘要:
AbstractThirty‐six percent of male mice from three strains attacked newborn pups sired by another male. No male attacked its own offspring. Females did not show differential aggression toward males likely (strangers) or unlikely (sires) to attack their pups. Both forms of aggression were unaffected by housing in rooms which did or did not contain the aggression targets. The three strains differed in strength of maternal aggression but not in the incidence of infanticide. Females showed more aggression when mated with males of the same, rather than a different, strain but no differences with intruders of the same or a different strain. Infanticide by males is best viewed as a postcopulatory, intermale‐competition strategy, and maternal aggression as a counter strat
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