Are invaders different? A conceptual framework of comparative approaches for assessing determinants of invasiveness

Ecology Letters (2010) 13: 947-958 What determines invasiveness of alien organisms is among the most interesting and urgent questions in ecology. In attempts to answer this question, researchers compare invasive alien species either to native species or to non-invasive alien species, and this is don...

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Bibliographic Details
Published in:Ecology letters 2010-08, Vol.13 (8), p.947-958
Main Authors: van Kleunen, Mark, Dawson, Wayne, Schlaepfer, Daniel, Jeschke, Jonathan M, Fischer, Markus
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Biological invasion
Comparative studies
Ecology
Ecology - methods
Ecosystem
enemy release
evolution
exotic species
Fundamental and applied biological sciences. Psychology
General aspects
indigenous species
Integrated approach
introduced species
invasiveness
native species
non-indigenous species
Nonnative species
Population Dynamics
Research methodology
Species Specificity
traits
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Summary:Ecology Letters (2010) 13: 947-958 What determines invasiveness of alien organisms is among the most interesting and urgent questions in ecology. In attempts to answer this question, researchers compare invasive alien species either to native species or to non-invasive alien species, and this is done in either the introduced or native ranges. However, inferences that can be drawn from these comparisons differ considerably, and failure to recognize this could hamper the search for determinants of invasiveness. To increase awareness about this issue, we present a framework of the various comparisons that can be used to test for determinants of invasiveness, and the specific questions each comparison can address. Moreover, we discuss how different comparisons complement each other, and therefore should be used in concert. For progress in invasion biology, it is crucial to realize that different comparisons address different biological questions and that some questions can only be answered unambiguously by combining them.
ISSN:1461-023X
1461-0248
DOI:10.1111/j.1461-0248.2010.01503.x