性别、季节和体型大小对吐鲁番沙虎巢域的影响  

Home range of Teratoscincus roborowskii(Gekkonidae): influence of sex, season,and body size

作　　者：李文蓉[1,2] 宋玉成[1,3] 时磊[1] 

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052 [2]上海师范大学生命与环境科学学院,上海200234 [3]中南林业科技大学野生动植物保护研究所,长沙410004

出　　处：《生态学报》2013年第2期395-401,共7页Acta Ecologica Sinica

基　　金：国家自然科学基金项目(31200511,30770264);国家科技支撑项目(2008BAC39B04)

摘　　要：2008年6月份至2009年5月份对吐鲁番沙虎的巢域进行调查:2008年6月份至2008年8月份为繁殖季节(RS),2008年9月份至2009年5月份(冬眠期除外)为非繁殖季节(NRS)。利用截趾标志重捕法研究吐鲁番沙虎的巢域,共标记283只吐鲁番沙虎,累计繁殖季节24只,非繁殖季节43只重捕超过3次(其中13只个体在繁殖季节和非繁殖季节均够3次以上捕捉次数,为重复个体),可以用于计算个体巢域面积数据。利用软件MapGis计算最小凸多边形法(MCP)巢域面积,并分析性别、体型大小、季节等因素对巢域的影响。结果表明:吐鲁番沙虎非繁殖季节雄性、雌性与幼体各组间的巢域面积差异均显著,繁殖季节巢域面积差异不显著;雌雄个体不同季节或全年合并比较巢域面积差异性均不显著;非繁殖季节面积与吻肛长(SVL)显著相关、全年成体组的巢域面积与吻肛长显著相关;成体巢域面积季节差异显著(U=41,P=0.046),幼体则没有季节差异(U=159,P=0.537)。因而,吐鲁番沙虎的巢域大小受性别因素影响不大,体型大小对巢域面积有显著影响,由于繁殖、食物资源等的季节变化是影响吐鲁番沙虎巢域最重要的因素。Teratoscincus roborowskii is endemic to sand dune habitats in the Turpan Basin,Western China.Its home range was investigated using mark-recapture techniques from June 2008 to May 2009 and compared between the reproductive season（RS,June 2008 to August 2008） and the non-reproductive season（NRS,from September 2008 to May 2009 excluding the 5—6 month period of hibernation）.In total,283 individuals were marked by toe-clipping,of which 24 individuals were recaptured more than three times in the RS,and 43 in the NRS（13 were recaptured in both seasons） and were used to quantify home range size.Their minimum convex polygon（MCP） ranges were calculated using MapGis software and analyzed with respect to the effects of factors such as sex,season,and body size.There were significant differences in home range size among male adults,female adults,and juveniles in the NRS,whereas,in the RS,the three groups were not significantly different.There were no significant differences in home range size between the sexes,in either the RS or the NRS.Home range and snout-vent length（SVL） were significantly correlated in the NRS,and home range size and SVL of adults were significantly correlated throughout the whole year（combining RS and NRS data）.In the NRS,the home range sizes of adults were significantly larger than that of juveniles.There were significant differences in the home ranges of adults between the RS and the NRS（U=41,P=0.046） but,in juveniles,there was no difference（U=159,P=0.537）.There was no difference between sexes in home range size but body size affected the home range.Home range size was correlated with body size,presumably,because of energetic requirements.The absence of a difference between sexes in the size of the home range of T.roborowskii is consistent with the absence of significant sexual dimorphism in body size in this species,and by the need for adult males to establish an optimal habitat.However,chases and intrusions by males were rarely observed and,because the eggs of pregna

关 键 词：吐鲁番沙虎 巢域 性别 季节 体型大小 

分 类 号：Q958.1[生物学—动物学]