重庆大木山自然保护区红腹锦鸡夏季沙浴地分析  

Sun-Bathing Habitat Selection by Goledn Pheasants in Damu Mountains Nature Reserve,China

作　　者：李宏群[1,2] 韩宗先[2] 吴少斌[2] 曹长雷[2] 冉景盛[2] 陈春[2] 岳碧松[1] 

机构地区：[1]四川大学生命科学学院,成都610064 [2]长江师范学院生命科学与技术学院,重庆涪陵408100

出　　处：《西南大学学报（自然科学版）》2012年第12期68-71,共4页Journal of Southwest University(Natural Science Edition)

基　　金：重庆市教委科学技术基金资助项目(KJ101310);重庆市教委教学改革基金资助项目(103156);武陵山区研究中心开发基金资助项目(WLYF2012008)

摘　　要：2010年7-8月,在重庆大木山自然保护区设点对红腹锦鸡沙浴地进行研究,共测定了7条样线上的64个对照样方和45个沙浴地利用样方.结果表明:红腹锦鸡夏季沙浴选择大于20°的阳坡和半阳坡、上坡位、山嵴和山坡面.对利用样方与对照样方比较表明,海拔、乔木盖度、乔木高度、乔木直径、灌丛盖度、灌丛高度、灌丛数量、草本高度、草本盖度、隐蔽级、林缘距离和干扰源距离等均存在显著或极显著差异.逐步判别分析表明,草本高度、隐蔽级、林缘距离、灌丛密度、乔木直径和灌丛高度具有重要作用,由这6个变量构成的方程在对利用样方和对照样方进行区分时,正确判别率可以达到90.8%,说明了红腹锦鸡沙浴地选择与隐蔽条件和地点转换有关.Abstract. Summer sun-bathing habitat selection by goledn pheasants （Chrysolophus pictus） was studied in Damu Mountains Nature Reserve, Chongqing, China from July to August in 2010. A total of 45 used and 64 random plots on the 7 transects crossing the whole study area were observed. The results showed that summer sun-bathing habitats selected by goledn pheasants were characterized by slope degree （〉20°）, sunny or mid-sunny slope, upper slope location, slope side and ridge. In comparison of the used sites with the random plots, significant differences were observed between them in altitude, distance to edge of woods and human disturbance, tree cover, height and diameter, shrub cover, height and density, grass cover and height, sheltering class. Stepwise discriminant analysis indicated that the main selection factors were grass height, sheltering class, distance to edge of woods, shrub density, tree diameter and shrub height. The equation involving the 6 variables gave a veracity of 90.8 % when employed to distinguish the used sites with the random plots. In conclusion, summer sun-bathing site selection by goledn pheasants is mainly associated with concealment and site-conversion.

关 键 词：红腹锦鸡 沙浴地 判别式分析 大木山 

分 类 号：Q959.7[生物学—动物学]