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Research article - Peer-reviewed, 2022

Different effects of warming treatments in forests versus hedgerows on the understorey plant Geum urbanum

Fernandez-Fernandez, P.; Sanczuk, P.; Vanneste, T.; Brunet, J.; Ehrlen, J.; Hedwall, P-O; Hylander, K.; Van Den Berge, S.; Verheyen, K.; De Frenne, P.


The effectiveness of hedgerows as functional corridors in the face of climate warming has been little researched. Here we investigated the effects of warming temperatures on plant performance and population growth of Geum urbanum in forests versus hedgerows in two European temperate regions. Adult individuals were transplanted in three forest-hedgerow pairs in each of two different latitudes, and an experimental warming treatment using open-top chambers was used in a full factorial design. Plant performance was analysed using mixed models and population performance was analysed using Integral Projection Models and elasticity analyses. Temperature increases due to open-top chamber installation were higher in forests than in hedgerows. In forests, the warming treatment had a significant negative effect on the population growth rate of G. urbanum. In contrast, no significant effect of the warming treatment on population dynamics was detected in hedgerows. Overall, the highest population growth rates were found in the forest control sites, which was driven by a higher fecundity rather than a higher survival probability. Effects of warming treatments on G. urbanum population growth rates differed between forests and hedgerows. In forests, warming treatments negatively affected population growth, but not in hedgerows. This could be a consequence of the overall lower warming achieved in hedgerows. We conclude that maintenance of cooler forest microclimates coul, at least temporarily, moderate the species response to climate warming.


Hedgerows; forests; functional corridors; Geum urbanum; Integral Projection Model; Elasticity analyses; warming treatment; open top chambers; microclimate

Published in

Plant Biology
2022, volume: 24, number: 5, pages: 734-744
Publisher: WILEY

Authors' information

Fernandez-Fernandez, P.
Ghent University
Sanczuk, P.
Ghent University
Vanneste, T.
Ghent University
Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre
Ehrlen, J.
Stockholm University
Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre
Hylander, K.
Stockholm University
Van Den Berge, S.
Ghent University
Verheyen, K.
Ghent University
De Frenne, P.
Ghent University

UKÄ Subject classification

Forest Science

Publication Identifiers


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