摘要
利用4种聚集度测定指标和Taylor,Iwao检验法对微尾鼩种群空间分布进行研究.结果表明:微尾鼩种群空间分布格局属于典型的聚集分布,聚集的基本单位为个体群,一个个体群为一个家族,个体群为聚集分布且具有明显领域性.不同月份聚集程度不同,其平均密度与聚集指数呈极显著负相关(r=-0.913,|r|>r0.01,(12-2)=0.7079),表现为高密度、低聚集;低密度、高聚集的分布特征.
The spatial distribution patterns of Anouroserex squamipes by using four index of degree of aggregation and the test methods of Taylor and Iwao were studied from September in 2003 to August in 2004.The result showed that the spatial distribution patterns of Anouroserex squamipes were significantly aggregated patterns, the essential unit of aggregation was individual-group, An individual-group was one family, individual-group of Anouroserex squamipes showed clumped distribution and had significantly domain. The cluster strength varied with population densities in different month, in high density with poor aggregation and low density with strong aggregation. There was significantly negnitive correlation between the population density and the index aggregation (r=-0.913, ｜r｜>r_ 0.01(12-2)=0.7079).
出处
《西华师范大学学报（自然科学版）》
2005年第2期149-151,共3页
Journal of China West Normal University(Natural Sciences)
基金
国家林业局资助项目(护传419)
