人工灌丛生境草原沙蜥和丽斑麻蜥生态位分化的研究  

The Niche Fragmentation of Pasture Lizard (Phrynocephalus frontalis) and Liban Lizard (Eremias argus) in the Artificial Shrub Land

作　　者：郭砺[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）》2005年第1期76-80,共5页Journal of Inner Mongolia University：Natural Science Edition

摘　　要：在柠条灌丛生境,丽斑麻蜥(Eremiasargus)主要栖息于灌丛之中,而草原沙蜥(Phrynocephalusfrontalis)则主要栖息于灌丛之间的空地.二者空间生态位重叠指数较低,而营养生态位食物种类维重叠指数较高.以Nelson相似性系数衡量两种蜥蜴对资源的相互竞争能力,在空间生态位,草原沙蜥的竞争力大于丽斑麻蜥,而在营养生态位食物种类一维则相反.以各种因素衡量,丽斑麻蜥对灌从生境的适应能力强于草原沙蜥.In the shrub land habitat,E.argus lives in the shrub community but P.frontalis lives mainly on the field among the shrub land. The overlap of their spatial niche was small ( 0.15) but the overlap of the trophic niche was high( 0.82, Aug.).The potential competitive ability between the two species was measured by Nelson similarity coefficient.The competitive ability of P.frontalis for space was stronger than that of E.argus,but for trophic E.argus was stronger than that of P.frontalis.Measured by several factors,the Adaptability of E.argus was superior to that of P.frontalis in the shrub land.

关 键 词：草原沙蜥 丽斑麻蜥 人工灌丛 生态位 

分 类 号：Q958.12[生物学—动物学] Q959.6