Skip to main content

Research Repository

Advanced Search

Introduced garden plants are strong competitors of native and alien residents under simulated climate change

Haeuser, E; Dawson, W; van Kleunen, M

Introduced garden plants are strong competitors of native and alien residents under simulated climate change Thumbnail


Authors

E Haeuser

M van Kleunen



Abstract

Most invasive plants have been originally introduced for horticultural purposes. Still, most alien garden plants have not naturalized yet, probably due in part to inadequate climatic conditions. Climate change may alter this, but few experimental studies have addressed this for non‐naturalized alien garden plants, and those that have, addressed only singular aspects of climate change. In a greenhouse experiment, we examined the performance of nine non‐naturalized alien herbaceous garden plants of varying climatic origins in response to simulated climate warming and reduced water availability, in a factorial design, as projected for southern Germany. To assess their invasion potential, we grew the species in competition with resident native and already‐naturalized alien species. Reduced watering negatively affected non‐naturalized garden plants, as well as the native and naturalized competitors, particularly at higher temperatures. However, non‐naturalized aliens performed better relative to competitors when temperatures increased. Naturalized and native resident competitor responses to climate change were both negative, but across climate treatments, non‐naturalized aliens, irrespective of their climatic origins, performed better against native than against naturalized competitors. Synthesis. We conclude that relative performance compared to resident species may increase for non‐naturalized alien garden plants under climate change, as resident species become less competitive. Ongoing climate change is therefore likely to promote naturalization of commonly planted alien herbaceous species.

Citation

Haeuser, E., Dawson, W., & van Kleunen, M. (2019). Introduced garden plants are strong competitors of native and alien residents under simulated climate change. Journal of Ecology, 107(3), 1328-1342. https://doi.org/10.1111/1365-2745.13101

Journal Article Type Article
Acceptance Date Nov 7, 2018
Online Publication Date Dec 14, 2018
Publication Date May 31, 2019
Deposit Date Dec 4, 2018
Publicly Available Date Mar 29, 2024
Journal Journal of Ecology
Print ISSN 0022-0477
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 107
Issue 3
Pages 1328-1342
DOI https://doi.org/10.1111/1365-2745.13101

Files

Accepted Journal Article (1 Mb)
PDF

Copyright Statement
This is the accepted version of the following article: Haeuser, E, Dawson, W & van Kleunen, M (2019). Introduced garden plants are strong competitors of native and alien residents under simulated climate change. Journal of Ecology 107(3): 1328-1342 which has been published in final form at https://doi.org/10.1111/1365-2745.13101. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.




You might also like



Downloadable Citations