Limited function of road verges as habitat for species connecting plant–bee networks in remnant semi-natural grasslands

Henriksen, M. V. ORCID: https://orcid.org/0000-0001-9071-2754, Bär, A., Garratt, M. P. D. ORCID: https://orcid.org/0000-0002-0196-6013, Nielsen, A. ORCID: https://orcid.org/0000-0002-3294-6234 and Johansen, L. (2024) Limited function of road verges as habitat for species connecting plant–bee networks in remnant semi-natural grasslands. Philsophical Transactions of the Royal Society B, 379 (1909). 20230168. ISSN 1471-2970 doi: 10.1098/rstb.2023.0168

Abstract/Summary

Species-rich natural and semi-natural ecosystems are under threat owing to land use change. To conserve the biodiversity associated with these ecosystems, we must identify and target conservation efforts towards functionally important species and supporting habitats that create connections between remnant patches in the landscape. Here, we use a multi-layer network approach to identify species that connect a metanetwork of plant–bee interactions in remnant semi-natural grasslands which are biodiversity hotspots in European landscapes. We investigate how these landscape connecting species, and their interactions, persist in their proposed supporting habitat, road verges, across a landscape with high human impact. We identify 11 plant taxa and nine bee species that connect semi-natural grassland patches. We find the beta diversity of these connector species to be low across road verges, indicating a poor contribution of these habitats to the landscape-scale diversity in semi-natural grasslands. We also find a significant influence of the surrounding landscape on the beta diversity of connector species and their interactions with implications for landscape-scale management. Conservation actions targeted toward species with key functional roles as connectors of fragmented ecosystems can provide cost-effective management of the diversity and functioning of threatened ecosystems.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/117509
Item Type	Article
Refereed	Yes
Divisions	Life Sciences > School of Agriculture, Policy and Development > Department of Sustainable Land Management > Centre for Agri-environmental Research (CAER)
Publisher	Royal Society
Download/View statistics	View download statistics for this item