Interbirth intervals are associated with age of the mother, but not with infant mortality

Interbirth intervals are associated with age of the mother, but not with infant mortality in Indian

rhinoceroses

Jan PLUH(A)(C)EK;Beatrice L.STECK;Satya P.SINHA;Friederike VON HOUWALD

【期刊名称】《动物学报（英文版）》 【年(卷),期】2017(063)003

【摘要】Rhinoceroses are among the most endangered mammals in the world.Despite a recent increase in numbers in most wild populations,poaching or political instability may exterminate large populations very quickly.Therefore,captive or ex situ rhinoceros populations can play an important role in their conservation.Previous studies identified infant mortality and interbirth intervals among the main parameters affecting the viability and survival of rhinoceros populations.In our study,we tested the recently suggested prediction that in captive Indian rhinoceros Rhinoceros unicornis,longer interbirth intervals may result in higher infant mortality.We also examined the factors that are the main predictors of infant mortality and interbith intervals using the studbook data on Indian rhinoceros born in zoos worldwide as well as data from Dudhwa National Park,India,where rhinoceroses were successfully reintroduced.We found no association between interbirth intervals and infant mortality.In both populations,the main predictor of infant mortality was mother's parity,with higher

mortality in calves born to primiparous mothers.In addition,we found that the interbirth intervals were shorter in zoos than in Dudhwa and that they increased with increase in age of the mother,which was the only factor affecting interbirth interval in both populations.Our results show that the same factors affect both parameters in both populations and thus illustrate that the reproduction and infant survival of Indian rhinoceros in zoos reflect the natural pattern.Furthermore,we suggest that in captivity,the interbirth intervals could be slightly prolonged to approach the situation in the wild. 【总页数】7页(229-235) 【关键词】

【作者】Jan PLUH(A)(C)EK;Beatrice L.STECK;Satya P.SINHA;Friederike VON HOUWALD

【作者单位】Department of Ethology, Institute of Animal Science, P(r)átelství 815, 104 00 Praha-Uh(r)íněves, Czech Republic;Ostrava Zoo, Michálkovická 197, 710 00 Ostrava, Czech Republic;Basel Zoo, Binningerstrasse 40, 4054 Basel,Switzerland;Wildlife Institute of India, H.No.IV.Chandrabani, Dehra Dun, Uttarakhand, India;Basel Zoo, Binningerstrasse 40, 4054 Basel,Switzerland 【正文语种】英文 【中图分类】 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_current-zoology_thesis/0201254531286.html 【相关文献】

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