夏季密点麻蜥生境的选择机制  

The summer Eremias multiocellata's habitat selection mechanism

作　　者：高利霞[1] 毕俊怀[1] 陈绍勇[1] 赵雪[1] 何志超[1] 刘睿[1] 

机构地区：[1]内蒙古师范大学生命科学与技术学院,内蒙古呼和浩特010022

出　　处：《内蒙古草业》2013年第2期32-36,共5页Inner Mongolia Prataculture

基　　金：内蒙古师范大学研究生科研创新基金项目;项目编号:CCJJS11054

摘　　要：生境丧失或片段化是物种多样性丧失及物种灭绝原因之一。本文选择密点麻蜥的三种生境类型,优势植物分别是油蒿(Artemisia ordosica Krasch)、羊柴(Hedysarum mongdicum Turcz Var)和麻黄(Ephedra sinica)。对不同生境的密点麻蜥种群密度及优势植物高度、植被盖度、植被丰富度、食物(昆虫)资源量、昆虫丰富度、裸地比例6个生态因子进行调查。计算密点麻蜥密度,采用U检验及因子分析。结果表明密点麻蜥偏爱中等植被高度、盖度及具有一定裸地比例的生境;A样地中食物(昆虫)资源量、昆虫丰富度对被提取的公因子的解释能力非常强,其次是植物丰富度;而其余三个变量的解释能力不是太强。Habitat loss or fragmentation is one of the reasons that lead to the loss of species diversity and spe- cies extinctionc. we Select Eremias--multiocellata＇s three types habitat, the dominant plant is in proper order Ar- temisia ordosica Krasch, Hedysarum mongdieum Turcz Var and Ephedra sinica. Survey the different habitats Ere-mias--multiocellata＇s population density and advantage plant height, vegetation cover, vegetation abundance, food resources （insects）, insect abundance, the proportion of bare land the 6 ecological factors. We calculated the Ere- mias multiocellata＇s density; U test and factor analysis. The results show that the Eremias multiocellata prefer moderate vegetation height, cover and having a certain proportion of bare ground habitats; A sample plot＇s food （insects） resources, insect richness have the ability of explain the public factors to be extracted is very strong, fol- lowed by plant richness;remaining three variables is not too strong explanatory power.

关 键 词：密点麻蜥 生境选择机制 

分 类 号：Q958[生物学—动物学]