内蒙古乌拉特后旗荒漠蜥蜴种间关系研究  

A Study on the Interspecific Relationship of Lizards in Urad Houqi County Desert in Inner Mongolia

作　　者：郭砺[1] 赵洪友[1] 

机构地区：[1]内蒙古大学生命科学学院,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2009年第6期694-698,共5页Journal of Inner Mongolia University：Natural Science Edition

基　　金：内蒙古自然科学基金项目(200508010519)

摘　　要：在内蒙古乌拉特后旗(41°26′N,106°58′E,)荒漠,变色沙蜥(Phrynocephalus versicolor)为蜥蜴群落的优势种,密点麻蜥(Eremias multiocellata)和无斑沙蜥(P.immaculatus)为伴生种.3种蜥蜴之间的时间生态位重叠指数均大于0.7.变色沙蜥具最大的空间生态位宽度指数(9.72)却具最小的营养生态位宽度指数(2.99),而密点麻蜥却相反(1.02和5.58),这2种蜥蜴的空间和营养生态位重叠指数分别为0.54和0.60,这两项指标在2种沙蜥之间分别为0.75和0.51.无斑沙蜥与密点麻蜥的空间生态位重叠指数最小(0.11),但营养生态位重叠指数却最大(0.92).Varied color toad-headed agama（Phrynocephalus versicolor） is the dominant species,multi-ocellated racerunner（Eremias multiocellata） and spotless toad-headed agama（Phrynocephalus immaculatus） are the companion species in Urad Houqi county（41°2′N,106°58′E,）desert in Inner Mongolia.The temporal niche overlaps among the 3 species of lizards are more than 0.7.P.versicolor has the highest spatial niche breadth index（9.72） and the lowest trophic niche breadth index（2.99）,but E.multiocellata is the opposite（1.02 and 5.58 respectively）,the spatial and trophic niche overlaps of them are 0.54 and 0.60 respectively.This two indexes of the 2 species of agamas are 0.75 and 0.51,respectively. The spatial niche overlap of E.multiocellata and P.immaculate is the lowest（0.11） but the trophic niche overlap is the highest（0.92）.

关 键 词：蜥蜴 种间关系 荒漠 内蒙古 

分 类 号：Q958.12[生物学—动物学]