A Comparative Study On The Characteristics Of Winter Coat Of Siberian Weasel (Mustela Sibirica) In Qiqihaer, Suihua And Yichun Regrions

Groups of one species in differents environments for enough long time, subspecies will come into being, thecharacters among the groups will be different. And the groups of one subspecies can be distributed in differentenvironments. The groups of one subspecies in different environment must have the adapting identies respectively.The variation of groups of one subspecies may samller than the variation among subspecies. Discover the differenceof one subspecies in differents environmens is the goal of this paper by measure the the hair parameters of MustelaSiberia manchurica distributed in Qiqihaer, Suihua and Yichun. regions.During November to December in 2005, the Mustela sibirica manchurica samples of this research werecollected in Qiqihaer (10 males), Suihua (10 males, 8 femals) and Yichun (10males, 10females) regions. Theparameters of guard hairs and vellus from head, mid back, mid belly, hip and tail region were measured by rulerand mircrometer. The results suggested:1: The variation of guard hair and vellus between males and female in the same regionis significant. Males are bigger than females among the length of guard hair, vellus, and theproportion of vellus and guard hair, cortex height, medulla index. And the difference in theSuihua region is bigger than Yichun region (except the proportion of vellus and guard hair).2: The variations of vellus length, hair diameter, medulla diameter and hair rootdiameter of males in different regions are more significant than females in different regions.Some indexes of the males in Suihua region are in the middle of the three regions. Thevariations of those indexes of females in different regions are not significant...