Title: Species richness effects on grassland recovery from drought depend on community productivity in a multisite experiment
Authors : Kreyling, Juergen
Dengler, Jürgen
Walter, Julia
Velev, Nikolay
Ugurlu, Emin
Sopotlieva, Desislava
Ransijn, Johannes
Picon-Cochard, Catherine
Nijs, Ivan
Hernandez, Pauline
Güler, Behlül
von Gillhaussen, Philipp
De Boeck, Hans J.
Bloor, Juliette M.G.
Berwaers, Sigi
Beierkuhnlein, Carl
Arfin Khan, Mohammed A.S.
Apostolova, Iva
Altan, Yasin
Zeiter, Michaela
Wellstein, Camilla
Sternberg, Marcelo
Stampfli, Andreas
Campetella, Giandiego
Bartha, Sándor
Bahn, Michael
Jentsch, Anke
Published in : Ecology Letters
Volume(Issue) : 20
Issue : 11
Pages : 1405
Pages to: 1413
Publisher / Ed. Institution : Wiley-Blackwell
Issue Date: Nov-2017
Language : Englisch / English
Subjects : Asynchrony; Coordinated distributed experiment; Diversity-stability relationship; Extreme event ecology; Insurance hypothesis; Resilience
Subject (DDC) : 577: Ökologie
Abstract: Biodiversity can buffer ecosystem functioning against extreme climatic events, but few experiments have explicitly tested this. Here, we present the first multisite biodiversity × drought manipulation experiment to examine drought resistance and recovery at five temperate and Mediterranean grassland sites. Aboveground biomass production declined by 30% due to experimental drought (standardised local extremity by rainfall exclusion for 72-98 consecutive days). Species richness did not affect resistance but promoted recovery. Recovery was only positively affected by species richness in low-productive communities, with most diverse communities even showing overcompensation. This positive diversity effect could be linked to asynchrony of species responses. Our results suggest that a more context-dependent view considering the nature of the climatic disturbance as well as the productivity of the studied system will help identify under which circumstances biodiversity promotes drought resistance or recovery. Stability of biomass production can generally be expected to decrease with biodiversity loss and climate change.
Departement: Life Sciences und Facility Management
Organisational Unit: Institut für Umwelt und Natürliche Ressourcen (IUNR)
Publication type: Beitrag in wissenschaftlicher Zeitschrift / Article in scientific Journal
DOI : 10.1111/ele.12848
ISSN: 1461-0248
PMID : 28941071
URI: https://digitalcollection.zhaw.ch/handle/11475/1938
Appears in Collections:Publikationen Life Sciences und Facility Management

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