| Titel | Climate change and invasion by intracontinental range-expanding exotic plants: the role of biotic interactions |
|---|---|
| Gepubliceerd in | Annals of Botany, Vol. 105, No. 6, p.843-848. ISSN 0305-7364. |
| Auteur | Morriën, W.E.; Engelkes, T.; Macel, M.; Meisner, A.; Putten, van der W.H. |
| Datum | 2010 |
| Trefwoord(en) | Laboratorium voor Nematologie |
| Taal | Engels |
| Type | artikel |
| Samenvatting | 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. |
| Publicatie | http://library.wur.nl/WebQuery/wurpubs/398163 |
| OpenURL | Zoek deze publicatie in (uw) bibliotheek |
| Persistent Identifier | urn:nbn:nl:ui:32-398163 |
| Metadata | XML |
| Repository | Wageningen Universiteit & Researchcentrum |
Omhoog
Ga terug naar de inhoud
Ga terug naar de site navigatie