WOLVES, MOOSE, AND TREE-RINGS ON ISLE ROYALE

被引：291

作者：

MCLAREN, BE

PETERSON, RO

机构：

[1] Michigan Technological University, School of Forestry and Wood Products, Houghton

来源：

SCIENCE | 1994年 / 266卷 / 5190期

关键词：

D O I：

10.1126/science.266.5190.1555

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Investigation of tree growth in Isle Royale National Park in Michigan revealed the influence of herbivores and carnivores on plants in an intimately linked food chain. Plant growth rates were regulated by cycles in animal density and responded to annual changes in primary productivity only when released from herbivory by wolf predation. Isle Royale's dendrochronology complements a rich literature on food chain control in aquatic systems, which often supports a trophic cascade model. This study provides evidence of top-down control in a forested ecosystem.

引用

页码：1555 / 1558

页数：4

共 33 条

[1] DYNAMICS OF CARIBOU AND WOLVES IN NORTHERN BRITISH-COLUMBIA [J].