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Your search keyword '"Declerck, Steven A. J."' showing total 10 results
Start Over Author "Declerck, Steven A. J." Journal ecology letters
10 results on '"Declerck, Steven A. J."'

3. Species sorting and stoichiometric plasticity control community C:P ratio of first-order aquatic consumers

Author

Teurlincx, Sven, Velthuis, Mandy, Seroka, Dominika, Govaert, Lynn, van Donk, Ellen, Van de Waal, Dedmer B., Declerck, Steven A. J., Sub Ecology and Biodiversity, Ecology and Biodiversity, Aquatic Ecology (AqE), Sub Ecology and Biodiversity, and Ecology and Biodiversity

Subjects
0106 biological sciences, Food Chain, Biology, Plasticity, food quality, 010603 evolutionary biology, 01 natural sciences, Zooplankton, Intraspecific competition, Community C:P, Food chain, Species Specificity, P ratio [C], Ecological stoichiometry, Animals, Ecology, Evolution, Behavior and Systematics, Trophic level, ecological stoichiometry, stoichiometric mismatch, Ecology, 010604 marine biology & hydrobiology, Species sorting, 15. Life on land, P [Community C], Price equation, international, C:P ratio, price equation
Abstract

Ecological stoichiometry has proven to be invaluable for understanding consumer response to changes in resource quality. Although interactions between trophic levels occur at the community level, most studies focus on single consumer species. In contrast to individual species, communities may deal with trophic mismatch not only through elemental plasticity but also through changes in species composition. Here, we show that a community of first-order consumers (e.g. zooplankton) is able to adjust its stoichiometry (C:P) in response to experimentally induced changes in resource quality, but only to a limited extent. Furthermore, using the Price equation framework we show the importance of both elemental plasticity and species sorting. These results illustrate the need for a community perspective in ecological stoichiometry, requiring consideration of species-specific elemental composition, intraspecific elemental plasticity and species turnover.

Published
2016

5. Integrating community assembly and biodiversity to better understand ecosystem function: the Community Assembly and the Functioning of Ecosystems (CAFE) approach.

Author

Bannar‐Martin, Katherine H., Kremer, Colin T., Ernest, S. K. Morgan, Leibold, Mathew A., Auge, Harald, Chase, Jonathan, Declerck, Steven A. J., Eisenhauer, Nico, Harpole, Stanley, Hillebrand, Helmut, Isbell, Forest, Koffel, Thomas, Larsen, Stefano, Narwani, Anita, Petermann, Jana S., Roscher, Christiane, Cabral, Juliano Sarmento, and Supp, Sarah R.

Subjects
BIODIVERSITY, ECOSYSTEMS, SPECIES distribution, DISPERSAL (Ecology), SPECIES diversity
Abstract

Abstract: The research of a generation of ecologists was catalysed by the recognition that the number and identity of species in communities influences the functioning of ecosystems. The relationship between biodiversity and ecosystem functioning (BEF) is most often examined by controlling species richness and randomising community composition. In natural systems, biodiversity changes are often part of a bigger community assembly dynamic. Therefore, focusing on community assembly and the functioning of ecosystems (CAFE), by integrating both species richness and composition through species gains, losses and changes in abundance, will better reveal how community changes affect ecosystem function. We synthesise the BEF and CAFE perspectives using an ecological application of the Price equation, which partitions the contributions of richness and composition to function. Using empirical examples, we show how the CAFE approach reveals important contributions of composition to function. These examples show how changes in species richness and composition driven by environmental perturbations can work in concert or antagonistically to influence ecosystem function. Considering how communities change in an integrative fashion, rather than focusing on one axis of community structure at a time, will improve our ability to anticipate and predict changes in ecosystem function. [ABSTRACT FROM AUTHOR]

Published
2018
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10. Dispersal-mediated trophic interactions can generate apparent patterns of dispersal limitation in aquatic metacommunities.

Author

Verreydt D, De Meester L, Decaestecker E, Villena MJ, Van Der Gucht K, Vannormelingen P, Vyverman W, and Declerck SA

Subjects
Animals, Bacteria, Body Size, Chlorophyll analysis, Chlorophyll A, Lakes, Plankton, Ecosystem, Phytoplankton, Population Dynamics, Zooplankton
Abstract

Dispersal is a major organising force in metacommunities, which may facilitate compositional responses of local communities to environmental change and affect ecosystem function. Organism groups differ widely in their dispersal abilities and their communities are therefore expected to have different adaptive abilities. In mesocosms, we studied the simultaneous compositional response of three plankton communities (zoo-, phyto- and bacterioplankton) to a primary productivity gradient and evaluated how this response was mediated by dispersal intensity. Dispersal enhanced responses in all three planktonic groups, which also affected ecosystem functioning. Yet, variation partitioning analyses indicated that responses in phytoplankton and bacterial communities were not only controlled by dispersal directly but also indirectly through complex trophic interactions. Our results indicate that metacommunity patterns emerging from dispersal can cascade through the food web and generate patterns of apparent dispersal limitation in organisms at other trophic levels., (© 2012 Blackwell Publishing Ltd/CNRS.)

Published
2012
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