| Title: | Climate change and invasion by intracontinental range-expanding exotic plants: the role of biotic interactions |
| Author(s): | Morrien E; Engelkes T; Macel M; Meisner A; van der Putten WH; |
| Address: | "Department of Terrestrial Ecology, Netherlands Institute of Ecology, Heteren, The Netherlands" |
| ISSN/ISBN: | 1095-8290 (Electronic) 0305-7364 (Print) 0305-7364 (Linking) |
| Abstract: | "BACKGROUND AND AIMS: In this Botanical Briefing we describe how the interactions between plants and their biotic environment can change during range-expansion within a continent and how this may influence plant invasiveness. SCOPE: We address how mechanisms explaining intercontinental plant invasions by exotics (such as release from enemies) may also apply to climate-warming-induced range-expanding exotics within the same continent. We focus on above-ground and below-ground interactions of plants, enemies and symbionts, on plant defences, and on nutrient cycling. CONCLUSIONS: Range-expansion by plants may result in above-ground and below-ground enemy release. This enemy release can be due to the higher dispersal capacity of plants than of natural enemies. Moreover, lower-latitudinal plants can have higher defence levels than plants from temperate regions, making them better defended against herbivory. In a world that contains fewer enemies, exotic plants will experience less selection pressure to maintain high levels of defensive secondary metabolites. Range-expanders potentially affect ecosystem processes, such as nutrient cycling. These features are quite comparable with what is known of intercontinental invasive exotic plants. However, intracontinental range-expanding plants will have ongoing gene-flow between the newly established populations and the populations in the native range. This is a major difference from intercontinental invasive exotic plants, which become more severely disconnected from their source populations" |
| Keywords: | "Adaptation, Physiological/*physiology *Biodiversity Biological Evolution Climate Change/classification/*mortality Conservation of Natural Resources *Ecosystem Environment Flowers *Plant Development Plant Shoots *Population Dynamics Species Specificity Tem;" |
| Notes: | "MedlineMorrien, Elly Engelkes, Tim Macel, Mirka Meisner, Annelein Van der Putten, Wim H eng Research Support, Non-U.S. Gov't England 2010/04/01 Ann Bot. 2010 Jun; 105(6):843-8. doi: 10.1093/aob/mcq064. Epub 2010 Mar 30" |
