摘要
共栖于荒漠植物景观中的变色沙蜥和虫纹麻蜥的种群密度在人工植物群落、半人工植物群落和天然植物群落中顺次增加。2种蜥蜴在栖息地选择和取食大小上具有较大的重迭,但在取食种类上具有较大的差异,成为2个种共存的基础。2种蜥蜴的资源位、资源位重迭值与取食种类的营养生态位及其重迭值间呈负相关。
In the desert plant landscape,the population density of P. versicotor and E. vermiculata increases successively in artyficial, artificial-natural, and natural plant communities. There in a certain overlap in the selection of habitat and the size of food. But there is a certain distinction in the varieties of food. As a result,two species of lizards can coexist. The size of their resource niche and the size of food species niche are negatively related;so are the overlap value of resource niche and the overlap value of food species niche.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
1993年第3期180-183,共4页
Journal of Lanzhou University(Natural Sciences)
基金
国家基金会资助
关键词
荒漠
蜥蜴
生态位
群落
共存机制
deseres, lizard, niche, community, coexist mechanism
