AN EXPERIMENTAL SEPARATION OF INTERFERENCE AND EXPLOITATIVE COMPETITION IN A LARVAL DAMSELFLY

被引:85
作者
ANHOLT, BR [1 ]
机构
[1] UNIV BRITISH COLUMBIA,DEPT ZOOL,ECOL GRP,VANCOUVER V6T 2A9,BC,CANADA
关键词
D O I
10.2307/1938285
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Enallagma boreale became more evenly distributed among available perches as the density per perch increased, demonstrating behavioural responses to the manipulation of habitat complexity. Food supply and damselfly density strongly affected survival, timing of emergence and mass at emergence, but the proportion of the variation in these performance variables attributable to the habitat complexity manipulation was tiny. Despite the overt nature of the interactions among individuals, the costs appear to be very low. -from Author
引用
收藏
页码:1483 / 1493
页数:11
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