天津七里海湿地蛾类多样性

Diversity of the moth community in the Qilihai wetland, Tianjin

系统调查研究了天津七里海湿地的蛾类 ,已知 19科 15 3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 4 7) ,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 。

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-abundance was 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.