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Plant invasions—process and patterns

Published online by Cambridge University Press:  20 January 2017

M. M. Stubbs
Affiliation:
Oregon State University, Corvallis, OR 97331
Claudio M. Ghersa
Affiliation:
University of Buenos Aires, Argentina

Abstract

Plant invasions that arise from human introductions of new species to a region, or from range expansion of some native plant species, can profoundly affect biodiversity and alter the structure and function of ecosystems. Although preventive strategies may be an effective way to limit plant invasions, they are difficult to achieve because adequate descriptions of biological and environmental characteristics are often lacking, and truly predictive models of invasive biology have been elusive. On the basis of a history of repeated plant introductions and the absence of a general predictive theory, it may be best to assume that plant invasions will continue. This paper explores ways to empirically study and to predict plant invasions through a study of the invasion process. Several approaches are explored, such as species demography, DNA analysis, and geographic information system reconstructions, to characterize source and satellite populations and factors that influence the spread of these populations.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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