Mechanisms_机理研究的重要性_underlying_the_impacts_of_exotic_plant_invasions.pdfVIP

Received 31 July 2002 Accepted 31 October 2002 Published online 6 March 2003 Review Paper Mechanisms underlying the impacts of exotic plant invasions * 1,2 3 4 Jonathan M. Levine , Montserrat Vila` , Carla M. D’Antonio , 5 6 6 Jeffrey S. Dukes , Karl Grigulis and Sandra Lavorel 1Department of Organismic Biology, Ecology and Evolution, 621 Charles E. Young Drive South, Box 951606, University of California, Los Angeles, CA 90095-1606, USA 2 Centre for Population Biology, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK 3 Centre for Ecological Research and Forestry Applications (CREAF), Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain 4Exotic Invasive Weeds Unit-US Department of Agriculture Agricultural Research Service, 920 Valley Road, Reno, NV 89511, USA 5 Carnegie Institution of Washington, Department of Global Ecology, 260 Panama Street, Stanford, CA 94305-1297, USA 6 Centre d’Ecologie Fonctionnelle de Evolutive CNRS, 1919 route de Mende, 34293 Montpellier Cedex 5, France Although the impacts of exotic plant invasions on community structure and ecosystem processes are well appreciated, the pathways or mechanisms that underlie these impacts are poorly understood. Better exploration of these processes is essential to understanding why exotic plants impact only certain systems, and why only some inva