Rapid adaptive evolution to drought in a subset of plant traits in a large‐scale climate change experiment
| Autor: | Hervé Bocherens, Laura Bäumler, Katja Tielbörger, Christian Lampei, Lorenz Henneberg, Johannes Metz, Juliette de Meaux, Hannes Dittberner |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Phenotypic plasticity Phenology Ecology Climate Change 010604 marine biology & hydrobiology Climate change Greenhouse Plant community Plants Biology Adaptation Physiological 010603 evolutionary biology 01 natural sciences Natural (archaeology) Droughts Trait Adaptation Ecology Evolution Behavior and Systematics Selection (genetic algorithm) |
| Zdroj: | Ecology Letters. 23:1643-1653 |
| ISSN: | 1461-0248 1461-023X |
| DOI: | 10.1111/ele.13596 |
| Popis: | Rapid evolution of traits and of plasticity may enable adaptation to climate change, yet solid experimental evidence under natural conditions is scarce. Here, we imposed rainfall manipulations (+30%, control, -30%) for ten years on entire natural plant communities in two Eastern Mediterranean sites. Additional sites along a natural rainfall gradient and selection analyses in a greenhouse assessed whether potential responses were adaptive. In both sites, our annual target species Biscutella didyma consistently evolved earlier phenology and higher reproductive allocation under drought. Multiple arguments suggest that this response was adaptive: it aligned with theory, corresponding trait shifts along the natural rainfall gradient, and selection analyses under differential watering in the greenhouse. However, another seven candidate traits did not evolve, and there was little support for evolution of plasticity. Our results provide compelling evidence for rapid adaptive evolution under climate change. Yet, several non-evolving traits may indicate potential constraints to full adaptation. |
| Databáze: | OpenAIRE |
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