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Contrasting responses of above- and belowground diversity to multiple components of land-use intensity.

ABSTRACT: Land-use intensification is a major driver of biodiversity loss. However, understanding how different components of land use drive biodiversity loss requires the investigation of multiple trophic levels across spatial scales. Using data from 150 agricultural grasslands in central Europe, we assess the influence of multiple components of local- and landscape-level land use on more than 4,000 above- and belowground taxa, spanning 20 trophic groups. Plot-level land-use intensity is strongly and negatively associated with aboveground trophic groups, but positively or not associated with belowground trophic groups. Meanwhile, both above- and belowground trophic groups respond to landscape-level land use, but to different drivers: aboveground diversity of grasslands is promoted by diverse surrounding land-cover, while belowground diversity is positively related to a high permanent forest cover in the surrounding landscape. These results highlight a role of landscape-level land use in shaping belowground communities, and suggest that revised agroecosystem management strategies are needed to conserve whole-ecosystem biodiversity.

SUBMITTER: Le Provost G

PROVIDER: S-EPMC8225671 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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Contrasting responses of above- and belowground diversity to multiple components of land-use intensity.

Le Provost Gaëtane G Thiele Jan J Westphal Catrin C Penone Caterina C Allan Eric E Neyret Margot M van der Plas Fons F Ayasse Manfred M Bardgett Richard D RD Birkhofer Klaus K Boch Steffen S Bonkowski Michael M Buscot Francois F Feldhaar Heike H Gaulton Rachel R Goldmann Kezia K Gossner Martin M MM Klaus Valentin H VH Kleinebecker Till T Krauss Jochen J Renner Swen S Scherreiks Pascal P Sikorski Johannes J Baulechner Dennis D Blüthgen Nico N Bolliger Ralph R Börschig Carmen C Busch Verena V Chisté Melanie M Fiore-Donno Anna Maria AM Fischer Markus M Arndt Hartmut H Hoelzel Norbert N John Katharina K Jung Kirsten K Lange Markus M Marzini Carlo C Overmann Jörg J Paŝalić Esther E Perović David J DJ Prati Daniel D Schäfer Deborah D Schöning Ingo I Schrumpf Marion M Sonnemann Ilja I Steffan-Dewenter Ingolf I Tschapka Marco M Türke Manfred M Vogt Juliane J Wehner Katja K Weiner Christiane C Weisser Wolfgang W Wells Konstans K Werner Michael M Wolters Volkmar V Wubet Tesfaye T Wurst Susanne S Zaitsev Andrey S AS Manning Peter P

Nature communications 20210624 1

Land-use intensification is a major driver of biodiversity loss. However, understanding how different components of land use drive biodiversity loss requires the investigation of multiple trophic levels across spatial scales. Using data from 150 agricultural grasslands in central Europe, we assess the influence of multiple components of local- and landscape-level land use on more than 4,000 above- and belowground taxa, spanning 20 trophic groups. Plot-level land-use intensity is strongly and neg ...[more]

PMID: 34168127

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Project description:Land management is known to have consequences for biodiversity; however, our synthetic understanding of its effects is limited due to highly variable results across studies, which vary in the focal taxa and spatial grain considered, as well as the response variables reported. Such synthetic knowledge is necessary for management of agroecosystems for high diversity and function.To fill this knowledge gap, we investigated the importance of scale-dependent effects of land management (LM) (pastures vs. meadows), on plant and soil microbe diversity (fungi and bacteria) across 5 study sites in Central Germany. Analyses included diversity partitioning of species richness and related biodiversity components (i.e., density of individuals, species-abundance distribution, and spatial aggregation) at two spatial grains (α- and γ-scale, 1 m2 and 16 km2, respectively).Our results show scale-dependent patterns in response to LM to be the norm rather than the exception and highlight the importance of measuring species richness and its underlying components at multiple spatial grains.Our outcomes provide new insight to the complexity of scale-dependent responses within and across taxonomic groups. They suggest that, despite close associations between taxa, LM responses are not easily extrapolated across multiple spatial grains and taxa. Responses of biodiversity to LM are often driven by changes to evenness and spatial aggregation, rather than by changes in individual density. High-site specificity of LM effects might be due to a variety of context-specific factors, such as historic land management, identity of grazers, and grazing regime. Synthesis and applications: Our results suggest that links between taxa are not necessarily strong enough to allow for generalization of biodiversity patterns. These findings highlight the importance of considering multiple taxa and spatial grains when investigating LM responses, while promoting management practices that do the same and are tailored to local and regional conditions.

Dataset Information

Contrasting responses of above- and belowground diversity to multiple components of land-use intensity.

Publications

Contrasting responses of above- and belowground diversity to multiple components of land-use intensity.

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