Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists
Climate-driven poleward shifts, leading to changes in species composition and relative abundances, have been recently documented in the Arctic. Among the fastest moving species are boreal generalist fish which are expected to affect arctic marine food web structure and ecosystem functioning substant...
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ftdryad:oai:v1.datadryad.org:10255/dryad.90367 2023-05-15T14:26:26+02:00 Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists Kortsch, Susanne Primicerio, Raul Fossheim, Maria Dolgov, Andrey V. Aschan, Michaela Barents Sea 2015-08-04T17:29:00Z http://hdl.handle.net/10255/dryad.90367 https://doi.org/10.5061/dryad.73r6j unknown doi:10.5061/dryad.73r6j/2 doi:10.1098/rspb.2015.1546 PMID:26336179 doi:10.5061/dryad.73r6j Kortsch S, Primicerio R, Fossheim M, Dolgov AV, Aschan M (2015) Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists. Proceedings of the Royal Society B 282: 20151546. http://hdl.handle.net/10255/dryad.90367 biogeography climate warming fish community food web topology modularity network structure Article 2015 ftdryad https://doi.org/10.5061/dryad.73r6j https://doi.org/10.5061/dryad.73r6j/2 https://doi.org/10.1098/rspb.2015.1546 2020-01-01T15:21:16Z Climate-driven poleward shifts, leading to changes in species composition and relative abundances, have been recently documented in the Arctic. Among the fastest moving species are boreal generalist fish which are expected to affect arctic marine food web structure and ecosystem functioning substantially. Here, we address structural changes at the food web level induced by poleward shifts via topological network analysis of highly resolved boreal and arctic food webs of the Barents Sea. We detected considerable differences in structural properties and link configuration between the boreal and the arctic food webs, the latter being more modular and less connected. We found that a main characteristic of the boreal fish moving poleward into the arctic region of the Barents Sea is high generalism, a property that increases connectance and reduces modularity in the arctic marine food web. Our results reveal that habitats form natural boundaries for food web modules, and that generalists play an important functional role in coupling pelagic and benthic modules. We posit that these habitat couplers have the potential to promote the transfer of energy and matter between habitats, but also the spread of pertubations, thereby changing arctic marine food web structure considerably with implications for ecosystem dynamics and functioning. Article in Journal/Newspaper Arctic Arctic Barents Sea Climate change Dryad Digital Repository (Duke University) Arctic Barents Sea |
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Open Polar |
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Dryad Digital Repository (Duke University) |
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ftdryad |
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unknown |
topic |
biogeography climate warming fish community food web topology modularity network structure |
spellingShingle |
biogeography climate warming fish community food web topology modularity network structure Kortsch, Susanne Primicerio, Raul Fossheim, Maria Dolgov, Andrey V. Aschan, Michaela Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
topic_facet |
biogeography climate warming fish community food web topology modularity network structure |
description |
Climate-driven poleward shifts, leading to changes in species composition and relative abundances, have been recently documented in the Arctic. Among the fastest moving species are boreal generalist fish which are expected to affect arctic marine food web structure and ecosystem functioning substantially. Here, we address structural changes at the food web level induced by poleward shifts via topological network analysis of highly resolved boreal and arctic food webs of the Barents Sea. We detected considerable differences in structural properties and link configuration between the boreal and the arctic food webs, the latter being more modular and less connected. We found that a main characteristic of the boreal fish moving poleward into the arctic region of the Barents Sea is high generalism, a property that increases connectance and reduces modularity in the arctic marine food web. Our results reveal that habitats form natural boundaries for food web modules, and that generalists play an important functional role in coupling pelagic and benthic modules. We posit that these habitat couplers have the potential to promote the transfer of energy and matter between habitats, but also the spread of pertubations, thereby changing arctic marine food web structure considerably with implications for ecosystem dynamics and functioning. |
format |
Article in Journal/Newspaper |
author |
Kortsch, Susanne Primicerio, Raul Fossheim, Maria Dolgov, Andrey V. Aschan, Michaela |
author_facet |
Kortsch, Susanne Primicerio, Raul Fossheim, Maria Dolgov, Andrey V. Aschan, Michaela |
author_sort |
Kortsch, Susanne |
title |
Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
title_short |
Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
title_full |
Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
title_fullStr |
Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
title_full_unstemmed |
Data from: Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
title_sort |
data from: climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.90367 https://doi.org/10.5061/dryad.73r6j |
op_coverage |
Barents Sea |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Arctic Barents Sea Climate change |
genre_facet |
Arctic Arctic Barents Sea Climate change |
op_relation |
doi:10.5061/dryad.73r6j/2 doi:10.1098/rspb.2015.1546 PMID:26336179 doi:10.5061/dryad.73r6j Kortsch S, Primicerio R, Fossheim M, Dolgov AV, Aschan M (2015) Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists. Proceedings of the Royal Society B 282: 20151546. http://hdl.handle.net/10255/dryad.90367 |
op_doi |
https://doi.org/10.5061/dryad.73r6j https://doi.org/10.5061/dryad.73r6j/2 https://doi.org/10.1098/rspb.2015.1546 |
_version_ |
1766298995080036352 |