AN ANT-APHID INTERACTION - FORMICA-FUSCA AND APHTHARGELIA-SYMPHORICARPI ON MOUNT ST-HELENS

被引：10

作者：

ANDERSEN, M ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT ZOOL NJ15,SEATTLE,WA 98195

来源：

AMERICAN MIDLAND NATURALIST | 1991年 / 125卷 / 01期

关键词：

D O I：

10.2307/2426366

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Observations and reports in the literature led to the hypothesis that the ant, Formica fusca, was acting as a mutualist of the aphid Aphthargelia symphoricarpi at a site on Mount St. Helens, Washington. This paper reports the results of a controlled field manipulation designed to test that hypothesis. Rather than a mutualistic interaction, the ants were preying on the aphids. Predation by ants reduced growth rates of aphid populations on single host plants by 27% and reduced aphid densities by 64% during the experiment.

引用

页码：29 / 36

页数：8

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