Increased sensitivity to climate change in disturbed ecosystems
Kröel-Dulay, György (Hungarian Academy of Sciences. Institute of Ecology and Botany)
Ransijn, Johannes (Københavns Universitet. Institut for Geovidenskab og Naturforvaltning)
Schmidt, Inger K. (Københavns Universitet. Institut for Geovidenskab og Naturforvaltning)
Beier, Claus (Norsk institutt for vannforskning)
De Angelis, Paolo (Università degli studi della Tuscia. Dipartimento per l'Innovazione nei sistemi Biologici, Agroalimentari e Forestali)
de Dato, Giovanbattista (Università degli studi della Tuscia. Dipartimento per l'Innovazione nei sistemi Biologici, Agroalimentari e Forestali)
Dukes, Jeffrey (Purdue University. Department of Forestry and Natural Resources)
Emmett, Bridget A. (Centre for Ecology and Hydrology-Bangor)
Estiarte, Marc (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Garadnai, János (Hungarian Academy of Sciences. Institute of Ecology and Botany)
Kongstad, Jane (Københavns Universitet. Institut for Geovidenskab og Naturforvaltning)
Kovàcs-Láng, Edit (Hungarian Academy of Sciences. Institute of Ecology and Botany)
Larsen, Klaus Steenberg (Københavns Universitet. Institut for Geovidenskab og Naturforvaltning)
Liberati, Dario (Università degli studi della Tuscia. Dipartimento per l'Innovazione nei sistemi Biologici, Agroalimentari e Forestali)
Ogaya Inurrigarro, Romà (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Riis-Nielsen, Torben (Københavns Universitet. Institut for Geovidenskab og Naturforvaltning)
Smith, Andrew (Bangor University. School of the Environment and Natural Resources)
Sowerby, Alwyn (Centre for Ecology & Hydrology, Oxford)
Tietema, Albert (Universiteit van Amsterdam. Institute for Biodiversity and Ecosystem Dynamics)
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)

Data:	2015
Resum:	Human domination of the biosphere includes changes to disturbance regimes, which push many ecosystems towards early-successional states. Ecological theory predicts that early-successional ecosystems are more sensitive to perturbations than mature systems, but little evidence supports this relationship for the perturbation of climate change. Here we show that vegetation (abundance, species richness and species composition) across seven European shrublands is quite resistant to moderate experimental warming and drought, and responsiveness is associated with the dynamic state of the ecosystem, with recently disturbed sites responding to treatments. Furthermore, most of these responses are not rapid (2-5 years) but emerge over a longer term (7-14 years). These results suggest that successional state influences the sensitivity of ecosystems to climate change, and that ecosystems recovering from disturbances may be sensitive to even modest climatic changes. A research bias towards undisturbed ecosystems might thus lead to an underestimation of the impacts of climate change.
Ajuts:	European Commission 610028 European Commission 227628 Ministerio de Economía y Competitividad CGL2013-48074-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-274
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Climate science ; Ecology ; Earth sciences
Publicat a:	Nature communications, March 2015, ISSN 2041-1723

DOI: 10.1038/ncomms7682

Post-print 26 p, 578.2 KB

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