陕西黄龙山自然保护区褐马鸡夏季沙浴地的选择  

Sun-bathing habitat selection by Brown-eared pheasant (Crossoptilon mantchuricum) during summer in Huanglong Mountains Nature Reserve,Shaanxi,China

作　　者：李宏群[1,2] 廉振民[1] 陈存根[3] 

机构地区：[1]延安大学生命科学学院,陕西延安716000 [2]长江师范学院生命科学系,重庆涪陵408100 [3]西北农林科技大学资源与环境学院,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2010年第3期59-64,共6页Journal of Northwest A&F University(Natural Science Edition)

基　　金：陕西省林业厅自然科学重点项目(08-0102)

摘　　要：【目的】了解褐马鸡(Crossoptilon mantchuricum)夏季沙浴地选择的特征。【方法】于2007-07-2007-08,在陕西黄龙山自然保护区北寺山林区设点,采用样带法对褐马鸡夏季沙浴地的选择进行了研究,测定了8条样带上36个试验样方和96个对照样方的19种生态因子。【结果】褐马鸡夏季偏好选择的沙浴地的特征为:阔叶林,乔木盖度30%~50%,直径10~20cm,高度小于10m,密度0.05~0.10株/m2;灌丛盖度大于50%,高度小于1.5m,密度大于5株/m2;草本盖度大于30%,高度大于10cm;海拔大于1400m;坡度大于30°,位于阳坡,坡位为上坡位,多为山脊;人为干扰距离、水源距离和林边距离均大于500m,隐蔽级小于10%。确定了褐马鸡沙浴地资源选择函数,其正确预测率为94.7%,影响褐马鸡夏季沙浴地选择的关键因子是隐蔽级和草本高度,次关键因子是水源距离和草本盖度。【结论】确定了夏季褐马鸡沙浴地选择的关键因子与次关键因子,对了解褐马鸡沙浴地的环境特征以及选择机制有重要的参考意义。[Objective] The research was to know summer sun-bathing habitat selection of Brown-eared pheasant(Crossoptilon mantchuricum).[Method] Sun-bathing habitat selection was studied by using Line transects of systematic sampling during the late breeding period in Beisi Mountains of Huanglong Mountains Nature Reserve,Shaanxi Province,China from July to August 2007.Nineteen ecological factors of thirty-six sun-bathing sites used by Brown-eared pheasant and ninety-six random plots were measured during 8 transects cr...

关 键 词：褐马鸡 沙浴地 环境特征 Jacobs法 资源选择函数 

分 类 号：S865[农业科学—野生动物驯养]