大、小兴安岭林区松鼠肥满度的比较

The Relative Fatness of Red Squirrel in Daxing' an Mountain and Xiaoxing' an Mountain

对大小兴安岭林区松鼠肥满度的变化规律进行了研究,结果表明:松鼠肥满度受栖息地环境状况的影响较大,在气候温暖、植物种类较多的地区肥满度高,反之则低。松鼠肥满度无年龄差异（F=1.73,P>0.05）,但有显著的季节差异（F大兴安岭=6.62,P<0.05;F小兴安岭=8.84,P<0.05）:秋季松鼠肥满度最大;冬季松鼠肥满度最小。松鼠肥满度亦受性别的影响。

The relative fatness of red squirrel (Sciurus vulgaris) was studied in Daxing' an Mountain and Xiaoxing' an Mountain. The results show that the values of the relative fatness of red squirrels are various in different habitats and state of plant growing. The relative fatness is higher in the area where climate is warmer and species of plant are more rich. On the con-trary , the relative fatness is lower. There was no significant difference of relative fatness of red squirrels in aspect of age (F = 1.73, P > 0. 05 ) . The difference of relative fatness among different seasons is significant ( FDaxing'an mountain =6.62, P <0.05; fXiaoxing'an Mountain Mountain=8.04, P < 0. 05 ) that relative fatness value shows the highest in autumn, the lowest in winter. The relative fatness changes evidently in different sexes contemporarily.