信阳师范学院学报（自然科学版）2011，Vol.24Issue(1)：63-67,5.DOI:10.3969/j.issn.1003-0972.2011.01.016
赤腹松鼠春季生境选择初步分析
Preliminary Analysis on the Habitat Select of Red Bellied Tree Squirrel in Spring
摘要
Abstract
Habitat select of the red bellied tree squirrel(Callosciurus flavimanus)was investigated in Long Yangtze Riverside Guangxi from February to May 2009.Thirteen ecological factors ( Canopy density.Water distance, Slope, Shelter of wind, Aspect, Slope position, Elevation, Tree density, Shrub density, Distance of tree, Distance of Shrub, Distance to human disturbance,Food abundant) were recorded in each of 10 m × 10 m plots of 101 samples, including 57 used and 44 unused samples.The data thus collected were analyzed with frequency analysis, Mann-Whitney U and Principle Component Analysis.The results showed that shelter of wind, slope, slope position, distance of shrubs, altitude, distance to human disturbance, distance of tree, water distance, tree density, shrub density and aspect ( P ＞ 0.05 ) had no influence, but canopy density and food richness (P ＜0.05) affected the habitat select of red bellied tree squirrel.Results of principal component analysis showed that the first 5 principal components explained 78.285％ of the total variance among all habitat variables.According to the absolute value of the coefficient, the 5 components were classified separately as hidden factor (canopy density, shelter of wind, slope, slope position and distance of shrubs) 26.31％ , interference factors (altitude,distance to human disturbance and distance of tree) 21.01％, water factor (water distance, tree density and shrub density) 13.44％ , the food factors (food richness) 8.91％ and geographic factors (aspect) 8.61％.关键词
赤腹松鼠/生境特征/主成分分析/初步分析分类
生物科学引用本文复制引用
原宝东..赤腹松鼠春季生境选择初步分析[J].信阳师范学院学报（自然科学版）,2011,24(1):63-67,5.基金项目
广西省自然科学基金青年基金项目(2010GXNSFB013044) （2010GXNSFB013044）
河池学院"引进人才科研启动经费项目"(2010QS-N009) （2010QS-N009）
河池学院青年科研课题(2010A-N001). （2010A-N001）
