影响棉蚜种群数量的优势种天敌的灰色系统分析  

Grey system analysis on dominant natural enemies influencing Aphis gosspyii population.

作　　者：毕守东[1] 邹运鼎[1] 陈高潮[1] 孟庆雷[1] 王公明[1] 

机构地区：[1]安徽农业大学,合肥230036

出　　处：《应用生态学报》2000年第3期417-420,共4页Chinese Journal of Applied Ecology

基　　金：安徽省自然科学基金!(95 农 0 5);安徽省教委基金!(95JL0 0 32 )资助项目

摘　　要：对 198 3、1984、1986、1988、1994和 1995年 6年棉花铃期以前棉蚜种群数量与其天敌种群数量以及各种天敌的捕食量 ,利用灰色系统理论和方法 ,研究天敌的日捕食总量和棉蚜种群数量的追随关系 ,并分析各种天敌与理想优势种天敌之间的联系程度 ,结果表明 ,龟纹瓢虫是棉蚜的主要天敌 ,其次是大草蛉 。The populations of Aphis gosspyii and its natural enemies before cotton boll stage were investigated systematically in 1983, 1984, 1986, 1988, 1994 and 1995. The relationship between daily total predation of natural enemies and Aphis gosspyii population size was studied with the grey system theory and method, and the relational grade of various natural enemies to ideal superior natural enemies was analyzed. The results show that Propylaca japonica was the major natural enemy influencing Aphis gossypii , followed by Chrysopa septempunctata , then by Therdion octomaculatum and Erigonidium graminicola.

关 键 词：优势种天敌 棉蚜种群 捕食量 灰色系统分析 

分 类 号：Q968[生物学—昆虫学]