期刊
ECOLOGY LETTERS
卷 7, 期 11, 页码 1090-1100出版社
WILEY
DOI: 10.1111/j.1461-0248.2004.00666.x
关键词
ecological succession; herbivore communities; host specificity; insect-plant interactions; invasive species; Lepidoptera; Malesia; Papua New Guinea; species richness; tropical forests
类别
We characterized a plant-caterpillar food web from secondary vegetation in a New Guinean rain forest that included 63 plant species (87.5% of the total basal area), 546 Lepidoptera species and 1679 trophic links between them. The strongest 14 associations involved 50% of all individual caterpillars while some links were extremely rare. A caterpillar randomly picked from the vegetation will, with greater than or equal to 50% probability, (1) feed on one to three host plants (of the 63 studied), (2) feed on < 20% of local plant biomass and (3) have greater than or equal to 90% of population concentrated on a single host plant species. Generalist species were quantitatively unimportant. Caterpillar assemblages on locally monotypic plant genera were distinct, while sympatric congeneric hosts shared many caterpillar species. The partitioning of the plant-caterpillar food web thus depends on the composition of the vegetation. In secondary forest the predominant plant genera were locally monotypic and supported locally isolated caterpillar assemblages.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据