Wetland productivity determines trade-off between biodiversity support and greenhouse gas production.

Åhlén, David ORCID: 0000-0002-1903-6842, Peacock, Mike ORCID: 0000-0002-3086-2854, Brodin, Yngve and Hambäck, Peter A ORCID: 0000-0001-6362-6199 (2023) Wetland productivity determines trade-off between biodiversity support and greenhouse gas production. Ecology and evolution, 13 (10). e10619-.

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Abstract

Establishing wetlands for nutrient capture and biodiversity support may introduce trade-offs between environmentally beneficial functions and detrimental greenhouse gas emissions. Investigating the interaction of nutrient capture, primary production, greenhouse gas production and biodiversity support is imperative to understanding the overall function of wetlands and determining possible beneficial synergistic effects and trade-offs. Here, we present temporally replicated data from 17 wetlands in hemi-boreal Sweden. We explored the relationship between nutrient load, primary producing algae, production of methane and nitrous oxide, and emergence rates of chironomids to determine what factors affected each and how they related to each other. Chironomid emergence rates correlated positively with methane production and negatively with nitrous oxide production, where water temperature was the main driving factor. Increasing nutrient loads reduced methanogenesis through elevated nitrogen concentrations, while simultaneously enhancing nitrous oxide production. Nutrient loads only indirectly increased chironomid emergence rates through increased chlorophyll-<i>a</i> concentration, via increased phosphorus concentrations, with certain taxa and food preference functional groups benefitting from increased chlorophyll-<i>a</i> concentrations. However, water temperature seemed to be the main driving factor for chironomid emergence rates, community composition and diversity, as well as for greenhouse gas production. These findings increase our understanding of the governing relationships between biodiversity support and greenhouse gas production, and should inform future management when constructing wetlands.

Item Type:	Article
Uncontrolled Keywords:	Chironomidae, greenhouse gasses, nutrient stoichiometry, primary production, trade‐offs, wetlands
Divisions:	Faculty of Science and Engineering > School of Environmental Sciences
Depositing User:	Symplectic Admin
Date Deposited:	02 Nov 2023 09:30
Last Modified:	02 Nov 2023 09:30
DOI:	10.1002/ece3.10619
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3176500