Field experiments underestimate aboveground biomass response to drought
Kröel-Dulay, György (Centre for Ecological Research. Institute of Ecology and Botany)
Mojzes, Andrea (Centre for Ecological Research. Institute of Ecology and Botany)
Szitár, Katalin (Centre for Ecological Research. Institute of Ecology and Botany)
Bahn, Michael (University of Innsbruck. Department of Ecology)
Batáry, Péter (Centre for Ecological Research. Institute of Ecology and Botany)
Beier, Claus (University of Copenhagen. Department of Geosciences and Natural Resource Management)
Bilton, Mark (Namibia University of Science and Technology)
De Boeck, Hans J. (University of Antwerp. Department of Biology)
Dukes, Jeffrey (Purdue University. Department of Biological Sciences)
Estiarte, Marc (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Holub, Petr (Czech Academy of Sciences. Global Change Research Institute)
Jentsch, Anke (University of Bayreuth. Disturbance Ecology, Bayreuth Center of Ecology and Environmental Research)
Schmidt, Inger Kappel (University of Copenhagen. Department of Geosciences and Natural Resource Management)
Kreyling, Juergen (University of Greifswald. Experimental Plant Ecology)
Reinsch, Sabine (UK Centre for Ecology & Hydrology)
Larsen, Klaus Steenberg (University of Copenhagen. Department of Geosciences and Natural Resource Management)
Sternberg, Marcelo (Tel Aviv University)
Tielbörger, Katja (University of Tübingen. Plant Ecology Group)
Tietema, Albert (University of Amsterdam)
Vicca, Sara (University of Antwerp. Department of Biology)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Fecha:	2022
Resumen:	Researchers use both experiments and observations to study the impacts of climate change on ecosystems, but results from these contrasting approaches have not been systematically compared for droughts. Using a meta-analysis and accounting for potential confounding factors, we demonstrate that aboveground biomass responded only about half as much to experimentally imposed drought events as to natural droughts. Our findings indicate that experimental results may underestimate climate change impacts and highlight the need to integrate results across approaches. In a meta-analysis comparing experimental versus observational studies of aboveground biomass responses to drought in grasslands, the authors show that effect sizes in experiments are 53% weaker than in observational studies, suggesting that experiments are underestimating drought responses.
Ayudas:	European Commission 610028
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Ecosystem ecology ; Climate-change ecology
Publicado en:	Nature ecology & evolution, Vol. 6 (March 2022) , p. 540-545, ISSN 2397-334X

DOI: 10.1038/s41559-022-01685-3
PMID: 35273367

9 p, 1.3 MB

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