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Ruderals naturalize, competitors invade : Varying roles of plant adaptive strategies along the invasion continuum

Ruderals naturalize, competitors invade : Varying roles of plant adaptive strategies along the invasion continuum

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GUO, Kun, Petr PYŠEK, Milan CHYTRÝ, Jan DIVÍŠEK, Zdeňka LOSOSOVÁ, Mark VAN KLEUNEN, Simon PIERCE, Wen‐Yong GUO, 2022. Ruderals naturalize, competitors invade : Varying roles of plant adaptive strategies along the invasion continuum. In: Functional Ecology. Wiley. 36(10), pp. 2469-2479. ISSN 0269-8463. eISSN 1365-2435. Available under: doi: 10.1111/1365-2435.14145

@article{Guo2022Ruder-58220, title={Ruderals naturalize, competitors invade : Varying roles of plant adaptive strategies along the invasion continuum}, year={2022}, doi={10.1111/1365-2435.14145}, number={10}, volume={36}, issn={0269-8463}, journal={Functional Ecology}, pages={2469--2479}, author={Guo, Kun and Pyšek, Petr and Chytrý, Milan and Divíšek, Jan and Lososová, Zdeňka and van Kleunen, Mark and Pierce, Simon and Guo, Wen‐Yong} }

Pierce, Simon van Kleunen, Mark Guo, Wen‐Yong 2022-08-02T12:58:27Z Pyšek, Petr Divíšek, Jan 2022-08-02T12:58:27Z Ruderals naturalize, competitors invade : Varying roles of plant adaptive strategies along the invasion continuum eng van Kleunen, Mark Chytrý, Milan Lososová, Zdeňka Pyšek, Petr 1. It is increasingly recognized that the factors facilitating plant invasions depend on the stage along the introduction–naturalization–invasion continuum. Adaptative strategies, that is, combinations of functional traits that represent overall fitness in the face of one or more selection pressures, have shown promise in explaining plant invasions. However, whether adaptive strategy patterns change with stages of plant invasion is not yet known.<br />2. Using the Pladias Database of the Czech Flora and Vegetation, we explored how Grime's adaptive strategies (competitors, stress-tolerators, ruderals; CSR) and introduction pathways (deliberate vs. accidental) relate to plant invasion along the introduction–naturalization–invasion continuum.<br />3. Phylogenetically corrected ANOVAs showed that naturalized species (referring to non-invasive naturalized species in this study) were mostly R-selected, whereas invasive species tended to be C-selected. The results of phylogenetic regression analysis further confirmed that across the deliberately and accidentally introduced species, R- and C-selection were positively related to naturalization and invasion success respectively. We also found that deliberate introduction was negatively related to naturalization success and grid-cell occupancy of naturalized species, likely due to the different CSR strategies of deliberately and accidentally introduced aliens.<br />4. Our study provides empirical evidence that different adaptive strategies are associated with species that have reached different invasion stages and confirms the usefulness of the CSR strategy framework for understanding plant invasion. This has implications for predicting and preventing potential high-impact invaders. For example, our results show that naturalized C-selected species have a higher probability of becoming invasive than naturalized R-selected species. Therefore, management actions are essential to prevent further introductions and spread of competitors. Guo, Kun Chytrý, Milan 2022 Pierce, Simon Divíšek, Jan terms-of-use Guo, Kun Lososová, Zdeňka Guo, Wen‐Yong

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