天津七里海湿地蛾类多样性

系统调查研究了天津七里海湿地的蛾类，已知19科153属198种，并对其多样性作了分析。结果表明，种 多度关系符合对数正态分布模型。但多样性指数与均匀度不相一致（r =-0.47），而与物种丰富度一致（r=0.95）。研究认为七里海湿地环境条件比较好，但有退化的趋势。

Diversity of the moth community in the Qilihai wetland, Tianjin

The Qilihai wetland is situated in the northeast of Tianjin (39°16′-39°20′N, 117°29′-117°39′E). An investigation on the diversity of its moth community was carried out from June 21 to October 6 in 2001 and from April 21 to October 21 in 2002. A total of 198 moth species belonging to 153 genera in 19 families were collected. The results show that the curve of the moth species abundancewas in accordance with the log normal hypothesis. However, no significant correlation was found between indices of diversity and evenness (r=-0.47) but Indices of diversity and richness was significantly correlated (r=0.95). This suggests that the environmental quality of the Qilihai wetland be deteriorating.