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

Ecology Letters 13(8)
Ecology Letters 13(8)

Mark Van Kleunen, Wayne Dawson, Daniel Schlaepfer, Jonathan M. Jeschke, Markus Fischer— 2010

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.

TitleAre invaders different? A conceptual framework of comparative approaches for assessing determinants of invasiveness
AuthorMark Van Kleunen, Wayne Dawson, Daniel Schlaepfer, Jonathan M. Jeschke, Markus Fischer
PublisherWiley
SubjectBiological invasion; comparative studies; enemy release; evolution; exotic species; invasiveness; native species; non-indigenous species; traits
Date20100623
Identifierdoi: 10.1111/j.1461-0248.2010.01503.x
Source(s)
Appeared InEcology Letters, Volume 13, Issue 8, pages 947–958 (August 2010)
Languageeng
TypeText
Rights© 2010 Blackwell Publishing Ltd/CNRS