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Seasonal variability in ecosystem functioning across estuarine gradients: The role of sediment communities and ecosystem processes
Mestdagh, S.; Fang, X.; Soetaert, K.; Ysebaert, T.; Moens, T.; Van Colen, C. (2020). Seasonal variability in ecosystem functioning across estuarine gradients: The role of sediment communities and ecosystem processes. Mar. Environ. Res. 162: 105096. https://dx.doi.org/10.1016/j.marenvres.2020.105096
In: Marine Environmental Research. Applied Science Publishers: Barking. ISSN 0141-1136; e-ISSN 1879-0291, meer
Peer reviewed article  
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Trefwoord
    Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries
Author keywords
    Sediment biogeochemistry, Ecosystem functioning, Ecosystem processes, Macrofauna, Soft sediments
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Abstract
    Functional trait approaches advance the understanding of biodiversity–ecosystem function (BDEF) relationships and its control by the environmental context. Application of these insights into management remains constrained due to lack of evidence from real-world ecosystems that capture the natural spatial and temporal gradients at which biodiversity and environmental conditions operate. In this study we measured macrofauna community traits, ecosystem processes and abiotic properties at 9 locations during 4 months, spanning a wide gradient in sedimentary habitats and salinity in the Scheldt estuary, and quantified the (a)biotic contribution to sediment community oxygen consumption, as a measure of ecosystem function. We found that functional attributes of the macrofauna community and its effect on bio-irrigation can predict ecosystem function, but especially during the colder period of the year. This result highlights that generalizations about BDEF relationships, and biodiversity loss on ecosystem functions, are limited whenever this temporal component is not acknowledged.
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