Complexity and structural properties of food webs in the Barents Sea
A food web topology describes the diversity of species and their trophic interactions, i.e. who eats whom, and structuralanalysis of food web topologies can provide insight into ecosystem structure and function. It appears simple, at rst sight,to list all species and their trophic interactions. Howe...
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ftaboakademicris:oai:pure.atira.dk:publications/cbf7885c-e515-471b-a587-1d2f5bb43560 2024-04-21T07:58:07+00:00 Complexity and structural properties of food webs in the Barents Sea Olivier, Pierre Benjamin, Planque 2017 https://research.abo.fi/en/publications/cbf7885c-e515-471b-a587-1d2f5bb43560 https://doi.org/10.1111/oik.04138 und unknown https://research.abo.fi/en/publications/cbf7885c-e515-471b-a587-1d2f5bb43560 info:eu-repo/semantics/restrictedAccess Olivier , P & Benjamin , P 2017 , ' Complexity and structural properties of food webs in the Barents Sea ' , Oikos , vol. 126 , no. 9 , pp. 1339–1346 . https://doi.org/10.1111/oik.04138 Ecological network food webs community ecology article 2017 ftaboakademicris https://doi.org/10.1111/oik.04138 2024-03-26T17:54:52Z A food web topology describes the diversity of species and their trophic interactions, i.e. who eats whom, and structuralanalysis of food web topologies can provide insight into ecosystem structure and function. It appears simple, at rst sight,to list all species and their trophic interactions. However, the very large number of species at low trophic levels and theimpossibility to monitor all trophic interactions in the ocean makes it impossible to construct complete food web topolo-gies. In practice, food web topologies are simpli ed by aggregating species into groups termed trophospecies. It is not clearthough, how much simpli ed versions of food webs retain the structural properties of more detailed networks. Using themost comprehensive Barents Sea food web to date, we investigate the performance of methods to construct simpli ed foodwebs using three approaches: taxonomic, structural and regular clustering. We then evaluate how topological propertiesvary with the level of network simpli cation. Results show that alteration of food web structural properties due to aggrega-tion are highly sensitive to the methodology used for grouping species and trophic links. In the speci c case of the BarentsSea, we show that it is possible to preserve key structural properties of the original complex food web in simpli ed versionswhen using taxonomic or structural clustering combined with intermediate 25% linkage for trophic aggregation. Article in Journal/Newspaper Barents Sea Åbo Akademi University Research Portal Oikos 126 9 1339 1346 |
institution |
Open Polar |
collection |
Åbo Akademi University Research Portal |
op_collection_id |
ftaboakademicris |
language |
unknown |
topic |
Ecological network food webs community ecology |
spellingShingle |
Ecological network food webs community ecology Olivier, Pierre Benjamin, Planque Complexity and structural properties of food webs in the Barents Sea |
topic_facet |
Ecological network food webs community ecology |
description |
A food web topology describes the diversity of species and their trophic interactions, i.e. who eats whom, and structuralanalysis of food web topologies can provide insight into ecosystem structure and function. It appears simple, at rst sight,to list all species and their trophic interactions. However, the very large number of species at low trophic levels and theimpossibility to monitor all trophic interactions in the ocean makes it impossible to construct complete food web topolo-gies. In practice, food web topologies are simpli ed by aggregating species into groups termed trophospecies. It is not clearthough, how much simpli ed versions of food webs retain the structural properties of more detailed networks. Using themost comprehensive Barents Sea food web to date, we investigate the performance of methods to construct simpli ed foodwebs using three approaches: taxonomic, structural and regular clustering. We then evaluate how topological propertiesvary with the level of network simpli cation. Results show that alteration of food web structural properties due to aggrega-tion are highly sensitive to the methodology used for grouping species and trophic links. In the speci c case of the BarentsSea, we show that it is possible to preserve key structural properties of the original complex food web in simpli ed versionswhen using taxonomic or structural clustering combined with intermediate 25% linkage for trophic aggregation. |
format |
Article in Journal/Newspaper |
author |
Olivier, Pierre Benjamin, Planque |
author_facet |
Olivier, Pierre Benjamin, Planque |
author_sort |
Olivier, Pierre |
title |
Complexity and structural properties of food webs in the Barents Sea |
title_short |
Complexity and structural properties of food webs in the Barents Sea |
title_full |
Complexity and structural properties of food webs in the Barents Sea |
title_fullStr |
Complexity and structural properties of food webs in the Barents Sea |
title_full_unstemmed |
Complexity and structural properties of food webs in the Barents Sea |
title_sort |
complexity and structural properties of food webs in the barents sea |
publishDate |
2017 |
url |
https://research.abo.fi/en/publications/cbf7885c-e515-471b-a587-1d2f5bb43560 https://doi.org/10.1111/oik.04138 |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
Olivier , P & Benjamin , P 2017 , ' Complexity and structural properties of food webs in the Barents Sea ' , Oikos , vol. 126 , no. 9 , pp. 1339–1346 . https://doi.org/10.1111/oik.04138 |
op_relation |
https://research.abo.fi/en/publications/cbf7885c-e515-471b-a587-1d2f5bb43560 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/oik.04138 |
container_title |
Oikos |
container_volume |
126 |
container_issue |
9 |
container_start_page |
1339 |
op_container_end_page |
1346 |
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1796939438424588288 |