卧龙大熊猫栖息地红腹角雉冬季生境选择的研究

采用样线法和样方法对卧龙＂五一棚＂区域内的红腹角雉（Tragopan temminckii）冬季栖息生境进行了调查。结果显示,红腹角雉冬季喜欢在2 400～2 800 m海拔段东坡陡峭坡面（﹥45°）的中坡位和下坡位活动,活动生境一般位于距水源近（0～100m）、林下植被盖度（0.10～0.15）和竹子盖度（0.6～0.9）较好,大树较多（5～10株.样方-1）的位点。通过与前人对大熊猫（Ailuropoda melanoleuca）生境选择研究的对比,发现虽然红腹角雉与大熊猫同时分布于五一棚相同海拔段和竹子盖度相似的区域,但选择的坡度不同（大熊猫选择20°～40°的坡度）,并且两者在食性上差异显著。对自然因子和主要食物要求的差别,可能正是红腹角雉和大熊猫能长期共存于＂五一棚＂区域的原因。

Winter Habitat Selection of Crimson-bellied Tragopan in Wolong

Studies were made of the winter habitat selection of crimson-bellied tragopans in Wolong by using transect line and sampling methods between November and December from 2008 to 2009.The results showed as follows：the crimson-bellied tragopan preferred to move about the altitude ranging from 2 400 m to 2 800 m,and liked the habitat on the middle or lower slope position with the steep slope（﹥45°）,and the habitat with the preferable grass cover（0.10～0.15）,good bamboo cover（0.6～0.9）,some big trees（5～10 trees·sample-1） and water source nearby（0～100 m）.Compared with the results of giant panda habitat selection studied by other researchers before,both crimson-bellied tragopans and giant pandas preferred the similar altitude range and bamboo cover,but different slope（giant pandas preferred 20°～40°slope）.In the other hand,the main food of the crimson-bellied tragopans and giant pandas were different,which might be a reason for the fact that the two sympatric species could coexist in Wolong Wuyipeng.