Plant diversity effects on grassland productivity are robust to both nutrient enrichment and drought
Dylan Craven
(1, 2)
,
Forest Isbell
(2)
,
Pete Manning
(3)
,
John Connolly
(4)
,
Helge Bruelheide
(2)
,
Anne Ebeling
(5)
,
Christiane Roscher
(2)
,
Jasper van Ruijven
(6)
,
Alexandra Weigelt
(2)
,
Brian Wilsey
(7)
,
Carl Beierkuhnlein
(8)
,
Enrica de Luca
(9)
,
John Griffin
(10)
,
Yann Hautier
(11)
,
Andy Hector
(12)
,
Anke Jentsch
(8)
,
Jürgen Kreyling
(13)
,
Vojtech Lanta
(14)
,
Michel Loreau
(15)
,
Sebastian Meyer
(16)
,
Akira Mori
(17)
,
Shahid Naeem
(18)
,
Cecilia Palmborg
(19)
,
H. Wayne Polley
(20)
,
Peter Reich
(21)
,
Bernhard Schmid
(9)
,
Alrun Siebenkäs
(22)
,
Eric Seabloom
(23)
,
Madhav Thakur
(2)
,
David Tilman
(23)
,
Anja Vogel
(2)
,
Nico Eisenhauer
(2)
1
Leipzig University / Universität Leipzig
2 iDiv - German Centre for Integrative Biodiversity Research
3 UNIBE - Universität Bern = University of Bern = Université de Berne
4 UCD - University College Dublin [Dublin]
5 Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany]
6 WUR - Wageningen University and Research [Wageningen]
7 ISU - Iowa State University
8 Universität Bayreuth [Deutschland] = University of Bayreuth [Germany] = Université de Bayreuth [Allemagne]
9 UZH - Universität Zürich [Zürich] = University of Zurich
10 Swansea University
11 Universiteit Utrecht / Utrecht University [Utrecht]
12 University of Oxford
13 Universität Greifswald - University of Greifswald
14 University of South Bohemia
15 SETE - Station d'écologie théorique et expérimentale
16 TUM - Technische Universität Munchen - Technical University Munich - Université Technique de Munich
17 Yokohama National University
18 Columbia University [New York]
19 SLU - Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet
20 National Center for Cool and Cold Water Aquaculture, ARS-USDA
21 Western Sydney University
22 UFZ - Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research
23 UMN - University of Minnesota [Twin Cities]
2 iDiv - German Centre for Integrative Biodiversity Research
3 UNIBE - Universität Bern = University of Bern = Université de Berne
4 UCD - University College Dublin [Dublin]
5 Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany]
6 WUR - Wageningen University and Research [Wageningen]
7 ISU - Iowa State University
8 Universität Bayreuth [Deutschland] = University of Bayreuth [Germany] = Université de Bayreuth [Allemagne]
9 UZH - Universität Zürich [Zürich] = University of Zurich
10 Swansea University
11 Universiteit Utrecht / Utrecht University [Utrecht]
12 University of Oxford
13 Universität Greifswald - University of Greifswald
14 University of South Bohemia
15 SETE - Station d'écologie théorique et expérimentale
16 TUM - Technische Universität Munchen - Technical University Munich - Université Technique de Munich
17 Yokohama National University
18 Columbia University [New York]
19 SLU - Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet
20 National Center for Cool and Cold Water Aquaculture, ARS-USDA
21 Western Sydney University
22 UFZ - Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research
23 UMN - University of Minnesota [Twin Cities]
Dylan Craven
- Fonction : Auteur
- PersonId : 792350
- ORCID : 0000-0003-3940-833X
Forest Isbell
- Fonction : Auteur
- PersonId : 797301
- ORCID : 0000-0001-9689-769X
Helge Bruelheide
- Fonction : Auteur
- PersonId : 774759
- ORCID : 0000-0003-3135-0356
Anne Ebeling
- Fonction : Auteur
- PersonId : 797300
- ORCID : 0000-0002-3221-4017
Yann Hautier
- Fonction : Auteur
- PersonId : 802855
- ORCID : 0000-0003-4347-7741
Anke Jentsch
- Fonction : Auteur
- PersonId : 775863
- ORCID : 0000-0002-2345-8300
Jürgen Kreyling
- Fonction : Auteur
- PersonId : 802856
- ORCID : 0000-0001-8489-7289
Michel Loreau
- Fonction : Auteur
- PersonId : 178300
- IdHAL : michel-loreau
- ORCID : 0000-0002-0122-495X
- IdRef : 072615680
Akira Mori
- Fonction : Auteur
- PersonId : 799422
- ORCID : 0000-0002-8422-1198
H. Wayne Polley
- Fonction : Auteur
- PersonId : 802857
- ORCID : 0000-0002-1197-8800
Peter Reich
- Fonction : Auteur
- PersonId : 769839
- ORCID : 0000-0003-4424-662X
Eric Seabloom
- Fonction : Auteur
- PersonId : 802895
- ORCID : 0000-0001-6780-9259
Résumé
Global change drivers are rapidly altering resource availability and biodiversity. While there is consensus that greater biodiversity increases the functioning of ecosystems, the extent to which biodiversity buffers ecosystem productivity in response to changes in resource availability remains unclear. We use data from 16 grassland experiments across North America and Europe that manipulated plant species richness and one of two essential resources—soil nutrients or water—to assess the direction and strength of the interaction between plant diversity and resource alteration on above-ground productivity and net biodiversity, complementarity, and selection effects. Despite strong increases in productivity with nutrient addition and decreases in productivity with drought, we found that resource alterations did not alter biodiversity–ecosystem functioning relationships. Our results suggest that these relationships are largely determined by increases in complementarity effects along plant species richness gradients. Although nutrient addition reduced complementarity effects at high diversity, this appears to be due to high biomass in monocultures under nutrient enrichment. Our results indicate that diversity and the complementarity of species are important regulators of grassland ecosystem productivity, regardless of changes in other drivers of ecosystem function.