Winter Habitat Selection of Blue Eared Pheasant (Crossoptilon auritum ) in Helan Mountain, China
Habitat selection of Blue Eared Pheasant (Crossoptilon auritum) was studied between November and December 2003 in Helan Mountain which geographically locates in 38°21' - 39°22'N,105°44' - 106°42'E. Total of 62 sites used by the pheasant were located in 25 transects crossing the whole study area. Thirteen habitat factors associated those used sites and 50 random plots were examined in Helan Mounlain. Blue Eared Pheasant preferred conifer forest dominated by Pinus tabulaeformis and Picea crassifolia, and avoided the other three vegetation types. They showed a strong preference for sunny and shady aspect of slope, and avoided half sunny and half shady one. Comparing with random plots, usage sites were characterized by denser tree and shrub, steeper slope, more closed hiding cover, shallower snow and higher altitude. Hiding cover, shrub density, tree density, distance to water resource, and slope degree were critically factors to discriminate usage sites and random plots. The overall classification model developed from those five variables was successfully to distinguish used sites from random ones at probability of 91.7% . Habitat selection of pheasant was mainly related to food and concealment.
NETL
NSTL
万方数据
维普
