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Eisenhauer, N.* ; Ochoa-Hueso, R.* ; Huang, Y.* ; Barry, K.E.* ; Gebler, A.* ; Guerra, C.A.* ; Hines, J.* ; Jochum, M.* ; Andraczek, K.* ; Bucher, S.F.* ; Buscot, F.* ; Ciobanu, M.* ; Chen, H.* ; Junker, R.* ; Lange, M.* ; Lehmann, A.* ; Rillig, M.* ; Römermann, C.* ; Ulrich, J.* ; Weigelt, A.* ; Schmidt, A.* ; Türke, M.

Ecosystem consequences of invertebrate decline.

Curr. Biol. 33, 4538-4547.e5 (2023)

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Human activities cause substantial changes in biodiversity.¹^,² Despite ongoing concern about the implications of invertebrate decline,³^,⁴^,⁵^,⁶^,⁷ few empirical studies have examined the ecosystem consequences of invertebrate biomass loss. Here, we test the responses of six ecosystem services informed by 30 above- and belowground ecosystem variables to three levels of aboveground (i.e., vegetation associated) invertebrate community biomass (100%, 36%, and 0% of ambient biomass) in experimental grassland mesocosms in a controlled Ecotron facility. In line with recent reports on invertebrate biomass loss over the last decade, our 36% biomass treatment also represented a decrease in invertebrate abundance (-70%) and richness (-44%). Moreover, we simulated the pronounced change in invertebrate biomass and turnover in community composition across the season. We found that the loss of invertebrate biomass decreases ecosystem multifunctionality, including two critical ecosystem services, aboveground pest control and belowground decomposition, while harvested plant biomass increases, likely because less energy was channeled up the food chain. Moreover, communities and ecosystem functions become decoupled with a lower biomass of invertebrates. Our study shows that invertebrate loss threatens the integrity of grasslands by decoupling ecosystem processes and decreasing ecosystem-service supply.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords Decomposition ; Ecosystem Coupling ; Ecosystem Services ; Idiv Ecotron ; Invertebrate Decline ; Multifunctionality ; Pest Control; Microbial Biomass; Plant Diversity; Biodiversity Loss; Soil; Grasslands; Cycles

ISSN (print) / ISBN 0960-9822

e-ISSN 1879-0445

Journal Current Biology

Quellenangaben Volume: 33, Issue: 20, Pages: 4538-4547.e5

Publisher Elsevier

Publishing Place 50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Biological and Medical Imaging (IBMI)

Grants European Agricultural Fund for Rural Development (EAFRD)
R&D Project of the Ministry of Science and Innovation - MCIN/AEI/
Ramon y Cajal program of the MICINN
European Research Council (ERC) under the European Union
Helmholtz Centre for Environmental Research UFZ
German Research Foundation
iDiv Ecotron Board