摘要
Abstract
To study the community structure of spiders which is main predator in maize field and the climate factors which influence the spider population,the number of the spiders in maize field of Beijing Daxing Farming area was investigated.The results showed 884individuals were collected,which belonging to 8families,17genera and 21species,the dominant spider specie was Pardosa astrigera L.koch.The structure characteristics of spider community were analyzed by diversity index H′,evenness E,dominance C,richness S,total individual numbers N,It concluded that the community diversity index and evenness change trend were the same,but H′ change range was very large,only the value of September 26th was greater than 1.5,others were all less than 1.5,the stability of the community was poor.The regression analysis by SPSS showed that there was no evident linear relationship between community population and the humidity of the investigated day,there was significant linear relationship between natural logarithm of spider community population and average temperature of the investigated day.关键词
玉米/蜘蛛群落/温度/回归模型Key words
maize/spider community/temperature/regression model分类
生物科学
