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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Native distribution characteristics rather than functional traits explain preadaptation of invasive species to high-UV-B environments
Diversity and Distributions, Volume 26, No. 10, Year 2020
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Description
Aim: Alien species successfully colonize new ranges if they encounter favourable environmental conditions there and possess traits that match new challenges. Climate-matching approaches comparing native and exotic ranges mostly consider temperature and precipitation niches of alien species, but have largely ignored UV-B radiation. UV-B fundamentally differs between hemispheres, with much higher levels at southern than at northern latitudes. Consequently, UV-B might act at the global scale and present a so far neglected filter that species need to overcome when invading high-UV-B environments. Location: We performed two multi-species common garden experiments, conducted in the native European range (Germany) and the high-UV-B exotic range (New Zealand) to test for preadaptation to UV-B. Methods: We used 25 herbaceous species from open habitats, which we exposed in each range to three UV radiation treatments: (a) natural sunlight, (b) exclusion of UV-B while allowing natural UV-A, and (c) exclusion of UV-B and UV-A. We additionally used plant traits (TRY), global distribution data (GBIF, GloNAF) and global UV-B satellite data (glUV) to determine species-specific characteristics as fostering agents of UV-B tolerance. The joint analysis of experimental and macroecological data allowed quantification of species plasticity and identification of beneficial species traits in high-UV-B environments. Results: Our results showed an overall limiting effect of UV-B in both common gardens but the UV-stress response tended to be more pronounced in the invaded range. Across all species, we found little evidence for preadaptation by functional plant traits. In contrast, preadaptation to climatic conditions related to the species’ native UV-B niche was of greater importance for plant performance in the presence of UV-B radiation. Main conclusions: For predicting alien species’ ability to expand into high-UV-B environments, macroclimatic niche characteristics of the species’ native range might be better predictors than functional traits and should be more considered in future projection models. © 2020 The Authors. Diversity and Distributions published by John Wiley & Sons Ltd
Authors & Co-Authors
Essl, Franz
Austria, Vienna
Universität Wien
Pyšek, Petr
Czech Republic, Pruhonice
Institute of Botany of the Academy of Sciences of the Czech Republic
Czech Republic, Prague
Charles University
Bruelheide, Helge
Germany, Halle
Martin-luther-universität Halle-wittenberg
Germany, Leipzig
German Centre for Integrative Biodiversity Research Idiv Halle-jena-leipzig
Erfmeier, Alexandra
Germany, Kiel
Christian-albrechts-universität zu Kiel
Germany, Leipzig
German Centre for Integrative Biodiversity Research Idiv Halle-jena-leipzig
Statistics
Citations: 5
Authors: 4
Affiliations: 7
Identifiers
Doi:
10.1111/ddi.13113
ISSN:
13669516
Research Areas
Cancer
Environmental
Study Design
Case-Control Study