后代
断奶
哺乳期
生物
怀孕
繁殖
生殖周期
后宫
生理学
动物
人口学
内分泌学
生态学
遗传学
社会学
作者
Victoria Soroker,Joseph Terkel
标识
DOI:10.1016/s0003-3472(88)80196-9
摘要
Most studies of infanticide in rodents have been carried out on laboratory animals. In the present study, pairs of infanticidal male and female wild mice were observed for changes in their responsiveness to alien pups during the reproductive cycle. Females killed pups during pregnancy, adopted alien pups during the lactation period, and killed pups again a month after the weaning of their offspring. In males, the transition from infanticidal to parental responses occurred as early as the first half of their mates' pregnancy, and only half of them resumed infanticide a month after the weaning of their litters. Subsequent experiments showed that two independent factors, the experience of copulation and cues from the pregnant female, accounted for the cessation of infanticide and onset of parental care in the male. The adaptive value of the co-existence of multiple mechanisms underlying the cessation of infanticide in male and female house mice is discussed with respect to the social life of this species.
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