RT journal article T1 Ecosystem consequences of invertebrate decline A1 Eisenhauer, Nico A1 Ochoa Hueso, Raúl A1 Huang, Yuanyuan A1 Barry, Kathryn E. A1 Gebler, Alban A1 Guerra, Carlos A. A1 Hines, Jes A1 Jochum, Malte A1 Andraczek, Karl A1 Bucher, Solveig Franziska A1 Buscot, François A1 Ciobanu, Marcel A1 Chen, Hongmei A1 Junker, Robert A1 Lange, Markus A1 Lehmann, Anika A1 Rillig, Matthias C. A1 Römermann, Christine A1 Ulrich, Josephine A1 Weigelt, Alexandra A1 Schmidt, Anja A1 Türke, Manfred A2 Biología K1 decomposition K1 ecosystem coupling K1 ecosystem services K1 iDiv Ecotron K1 invertebrate decline K1 multifunctionality K1 pest control AB 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. PB Cell Press SN 1879-0445 YR 2023 FD 2023 LK http://hdl.handle.net/10498/32298 UL http://hdl.handle.net/10498/32298 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 06-nov-2026