LIFE AFTER DEATH - SITE PREEMPTION BY THE REMAINS OF POA-ANNUA

被引：125

作者：

BERGELSON, J ^{[1
]}

机构：

[1] UNIV WASHINGTON, DEPT ZOOL NJ-15, SEATTLE, WA 98195 USA

来源：

ECOLOGY | 1990年 / 71卷 / 06期

关键词：

D O I：

10.2307/1938629

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Randomly distributed Capsella bursa-pastoris and Senecio vulgaris were introduced into plots with either a random or a patchy distribution of Poa. Seedling numbers in the following generation were 4-6 times as high for Capsella and Senecio when Poa was patchily rather than randomly distributed, due to increased emergence or survival of seedlings in areas with a low density of dead Poa adults. Interference by dead grass blades was responsible for high seedling mortality. -from Author

引用

页码：2157 / 2165

页数：9

共 44 条

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