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Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands

Complex socio-economic, political and demographic factors have driven the increased conversion of Europe’s semi-natural grasslands to intensive pastures. This trend is particularly strong in some of the most biodiverse regions of the continent, such as Central and Eastern Europe. Intensive grazing i...

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Autores principales: Rakosy, Demetra, Motivans, Elena, Ştefan, Valentin, Nowak, Arkadiusz, Świerszcz, Sebastian, Feldmann, Reinart, Kühn, Elisabeth, Geppert, Costanza, Venkataraman, Neeraja, Sobieraj-Betlińska, Anna, Grossmann, Anita, Rojek, Wiktoria, Pochrząst, Katarzyna, Cielniak, Magdalena, Gathof, Anika Kirstin, Baumann, Kevin, Knight, Tiffany Marie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8916670/
https://www.ncbi.nlm.nih.gov/pubmed/35275933
http://dx.doi.org/10.1371/journal.pone.0263576
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author Rakosy, Demetra
Motivans, Elena
Ştefan, Valentin
Nowak, Arkadiusz
Świerszcz, Sebastian
Feldmann, Reinart
Kühn, Elisabeth
Geppert, Costanza
Venkataraman, Neeraja
Sobieraj-Betlińska, Anna
Grossmann, Anita
Rojek, Wiktoria
Pochrząst, Katarzyna
Cielniak, Magdalena
Gathof, Anika Kirstin
Baumann, Kevin
Knight, Tiffany Marie
author_facet Rakosy, Demetra
Motivans, Elena
Ştefan, Valentin
Nowak, Arkadiusz
Świerszcz, Sebastian
Feldmann, Reinart
Kühn, Elisabeth
Geppert, Costanza
Venkataraman, Neeraja
Sobieraj-Betlińska, Anna
Grossmann, Anita
Rojek, Wiktoria
Pochrząst, Katarzyna
Cielniak, Magdalena
Gathof, Anika Kirstin
Baumann, Kevin
Knight, Tiffany Marie
author_sort Rakosy, Demetra
collection PubMed
description Complex socio-economic, political and demographic factors have driven the increased conversion of Europe’s semi-natural grasslands to intensive pastures. This trend is particularly strong in some of the most biodiverse regions of the continent, such as Central and Eastern Europe. Intensive grazing is known to decrease species diversity and alter the composition of plant and insect communities. Comparatively little is known, however, about how intensive grazing influences plant functional traits related to pollination and the structure of plant-pollinator interactions. In traditional hay meadows and intensive pastures in Central Europe, we contrasted the taxonomic and functional group diversity and composition, the structure of plant-pollinator interactions and the roles of individual species in networks. We found mostly lower taxonomic and functional diversity of plants and insects in intensive pastures, as well as strong compositional differences among the two grassland management types. Intensive pastures were dominated by a single plant with a specialized flower structure that is only accessible to a few pollinator groups. As a result, intensive pastures have lower diversity and specificity of interactions, higher amount of resource overlap, more uniform interaction strength and lower network modularity. These findings stand in contrast to studies in which plants with more generalized flower traits dominated pastures. Our results thus highlight the importance of the functional traits of dominant species in mediating the consequences of intensive pasture management on plant-pollinator networks. These findings could further contribute to strategies aimed at mitigating the impact of intensive grazing on plant and pollinator communities.
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spelling pubmed-89166702022-03-12 Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands Rakosy, Demetra Motivans, Elena Ştefan, Valentin Nowak, Arkadiusz Świerszcz, Sebastian Feldmann, Reinart Kühn, Elisabeth Geppert, Costanza Venkataraman, Neeraja Sobieraj-Betlińska, Anna Grossmann, Anita Rojek, Wiktoria Pochrząst, Katarzyna Cielniak, Magdalena Gathof, Anika Kirstin Baumann, Kevin Knight, Tiffany Marie PLoS One Research Article Complex socio-economic, political and demographic factors have driven the increased conversion of Europe’s semi-natural grasslands to intensive pastures. This trend is particularly strong in some of the most biodiverse regions of the continent, such as Central and Eastern Europe. Intensive grazing is known to decrease species diversity and alter the composition of plant and insect communities. Comparatively little is known, however, about how intensive grazing influences plant functional traits related to pollination and the structure of plant-pollinator interactions. In traditional hay meadows and intensive pastures in Central Europe, we contrasted the taxonomic and functional group diversity and composition, the structure of plant-pollinator interactions and the roles of individual species in networks. We found mostly lower taxonomic and functional diversity of plants and insects in intensive pastures, as well as strong compositional differences among the two grassland management types. Intensive pastures were dominated by a single plant with a specialized flower structure that is only accessible to a few pollinator groups. As a result, intensive pastures have lower diversity and specificity of interactions, higher amount of resource overlap, more uniform interaction strength and lower network modularity. These findings stand in contrast to studies in which plants with more generalized flower traits dominated pastures. Our results thus highlight the importance of the functional traits of dominant species in mediating the consequences of intensive pasture management on plant-pollinator networks. These findings could further contribute to strategies aimed at mitigating the impact of intensive grazing on plant and pollinator communities. Public Library of Science 2022-03-11 /pmc/articles/PMC8916670/ /pubmed/35275933 http://dx.doi.org/10.1371/journal.pone.0263576 Text en © 2022 Rakosy et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Rakosy, Demetra
Motivans, Elena
Ştefan, Valentin
Nowak, Arkadiusz
Świerszcz, Sebastian
Feldmann, Reinart
Kühn, Elisabeth
Geppert, Costanza
Venkataraman, Neeraja
Sobieraj-Betlińska, Anna
Grossmann, Anita
Rojek, Wiktoria
Pochrząst, Katarzyna
Cielniak, Magdalena
Gathof, Anika Kirstin
Baumann, Kevin
Knight, Tiffany Marie
Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands
title Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands
title_full Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands
title_fullStr Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands
title_full_unstemmed Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands
title_short Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands
title_sort intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in central european grasslands
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8916670/
https://www.ncbi.nlm.nih.gov/pubmed/35275933
http://dx.doi.org/10.1371/journal.pone.0263576
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