Regulation of keystone predation by small changes in ocean temperature

被引：383

作者：

Sanford, E ^{[1
]}

机构：

[1] Oregon State Univ, Dept Zool, Corvallis, OR 97331 USA

来源：

SCIENCE | 1999年 / 283卷 / 5410期

关键词：

D O I：

10.1126/science.283.5410.2095

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：

Key species interactions that are sensitive to temperature may act as Leverage points through which small changes in climate could generate Large changes in natural communities. Field and laboratory experiments showed that a slight decrease in water temperature dramatically reduced the effects of a keystone predator. the sea star Pisaster ochraceus, on its principal prey. Ongoing changes in patterns of cold water upwelling, associated with El Nino events and Longer term geophysical changes. may thus have far-reaching impacts on the composition and diversity of these rocky intertidal communities.

引用

页码：2095 / 2097

页数：3

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