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- W1994324632 abstract "On the assumption that infanticide exists in plains zebra, as reported for horses, Equus caballus, we tested the following hypothesis. Introducing a new zebra male into a herd of breeding females should increase foal mortality in comparison with herds in which the sire of the foals is still present. The younger the foal, the more likely infanticide should be. We collected data from five herds in two zoological gardens in the Czech Republic. We found nine records of infanticide in plains zebra and three cases of abortions that were probably induced by forced copulation. We analysed additional indirect data to investigate the possibility of introduced males causing other abortions. Abortions were three times more likely in herds with introduced males than with only fathers present. Postnatal mortality of the foals was four times greater with introduced males than with fathers. No indication of a sex preference was observed for infanticide by a new male for either abortions or postpartum deaths. When we combined all records involving introduced males, the probability of foal death was greatest when the new male joined the herd just after conception and decreased with increasing time between conception and date of the new male introduction (the chance of a foal surviving was less than 5% just after conception and more than 50% at the time of delivery). Mortality of foals did not depend on whether the new male was introduced before or after the foal was born. Survival increased to more than 60% after the foal reached 1 month of age. Our results suggest that captive plains zebra show the highest occurrence of infanticide reported among ungulates. Copyright 2000 The Association for the Study of Animal Behaviour." @default.
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- W1994324632 date "2000-04-01" @default.
- W1994324632 modified "2023-10-18" @default.
- W1994324632 title "Male infanticide in captive plains zebra, Equus burchelli" @default.
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- W1994324632 doi "https://doi.org/10.1006/anbe.1999.1371" @default.
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