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标题：Antler possession by west Greenland female caribou in relation to population characteristics
其他标题：Antler possession by west Greenland female caribou in relation to population characteristics
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作者：Henning Thing ; Carsten Riis Olesen ; Peter Aastrup 等
期刊名称：Rangifer
印刷版ISSN：1890-6729
出版年度：1986
卷号：6
期号：2
页码：297-304
DOI：10.7557/2.6.2.662
语种：English
出版社：Swedish University of Agricultural Sciences
摘要：The frequency of antlerless adult female caribou (Rangifer tarandus groenlandicus) was studied in four separate populations in west Greenland. Between the herds antlerlessness varied from 21% to 79%. An inverse relationship between winter range quality and percentage of unantlered cows is demonstrated. Relationship between calf percentage and maternal antler status was studied in one population and antlerless cows showed higher reproductive rate than antlered ones. In another population antlerless cows were almost absent outside the calving area. Calves of antlerless mothers were more susceptible to diseases and had significantly higher summer mortality than other calves, 42% and 27% respectively. The relative importance of factors influencing antler development under various environmental conditons are assessed and a close relationship between antlerlessness, physical condition, lactation, and length of period between calving and midsummer is discussed.
关键词：Population Ecology; Morphology; Zoology;caribou; Rangifer; Greenland; antler; reproduction; calf mortality; antler status; antler cycle