Food-web structure varies along environmental gradients in a high-latitude marine ecosystem
Source at: http://doi.org/10.1111/ecog.03443 Large-scale patterns in species diversity and community composition are associated with environmental gradients, but the implications of these patterns for food-web structure are still unclear. Here, we investigated how spatial patterns in food-web struct...
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Online Access: | https://hdl.handle.net/10037/14267 https://doi.org/10.1111/ecog.03443 |
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ftunivtroemsoe:oai:munin.uit.no:10037/14267 2023-05-15T14:27:45+02:00 Food-web structure varies along environmental gradients in a high-latitude marine ecosystem Kortsch, Susanne Primicerio, Raul Aschan, Michaela Lind, Sigrid Dolgov, Andrey V. Planque, Benjamin 2018-05-17 https://hdl.handle.net/10037/14267 https://doi.org/10.1111/ecog.03443 eng eng Wiley Ecography info:eu-repo/grantAgreement/RCN/SIPHINIFES/228896/Norway/The Arctic Ocean Ecosystem - Polhavets økosystem// Forskningsrådet: ? info:eu-repo/grantAgreement/EC/H2020/677039/EU/Co-creating a decision support framework to ensure sustainable fish production in Europe under climate change/ClimeFish/ Kortsch, S., Primicerio, R., Aschan, M., Lind, S. L., Dolgov, A. V. & Planque, B. (2018). Food-web structure varies along environmental gradients in a high-latitude marine ecosystem. Ecography, 41, 1-14. http://doi.org/10.1111/ecog.03443 FRIDAID 1636375 doi:10.1111/ecog.03443 0906-7590 1600-0587 https://hdl.handle.net/10037/14267 openAccess VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1111/ecog.03443 2021-06-25T17:56:14Z Source at: http://doi.org/10.1111/ecog.03443 Large-scale patterns in species diversity and community composition are associated with environmental gradients, but the implications of these patterns for food-web structure are still unclear. Here, we investigated how spatial patterns in food-web structure are associated with environmental gradients in the Barents Sea, a highly productive shelf sea of the Arctic Ocean. We compared food webs from 25 subregions in the Barents Sea and examined spatial correlations among food-web metrics, and between metrics and spatial variability in seawater temperature, bottom depth and number of days with ice cover. Several food-web metrics were positively associated with seawater temperature: connectance, level of omnivory, clustering, cannibalism, and high variability in generalism, while other food-web metrics such as modularity and vulnerability were positively associated with sea ice and negatively with temperature. Food-web metrics positively associated with habitat heterogeneity were: number of species, link density, omnivory, path length, and trophic level. This finding suggests that habitat heterogeneity promotes food-web complexity in terms of number of species and link density. Our analyses reveal that spatial variation in food-web structure along the environmental gradients is partly related to species turnover. However, the higher interaction turnover compared to species turnover along these gradients indicates a consistent modification of food-web structure, implying that interacting species may co-vary in space. In conclusion, our study shows how environmental heterogeneity, via environmental filtering, influences not only turnover in species composition, but also the structure of food webs over large spatial scales. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Barents Sea Sea ice University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Barents Sea Ecography 42 2 295 308 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Kortsch, Susanne Primicerio, Raul Aschan, Michaela Lind, Sigrid Dolgov, Andrey V. Planque, Benjamin Food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
description |
Source at: http://doi.org/10.1111/ecog.03443 Large-scale patterns in species diversity and community composition are associated with environmental gradients, but the implications of these patterns for food-web structure are still unclear. Here, we investigated how spatial patterns in food-web structure are associated with environmental gradients in the Barents Sea, a highly productive shelf sea of the Arctic Ocean. We compared food webs from 25 subregions in the Barents Sea and examined spatial correlations among food-web metrics, and between metrics and spatial variability in seawater temperature, bottom depth and number of days with ice cover. Several food-web metrics were positively associated with seawater temperature: connectance, level of omnivory, clustering, cannibalism, and high variability in generalism, while other food-web metrics such as modularity and vulnerability were positively associated with sea ice and negatively with temperature. Food-web metrics positively associated with habitat heterogeneity were: number of species, link density, omnivory, path length, and trophic level. This finding suggests that habitat heterogeneity promotes food-web complexity in terms of number of species and link density. Our analyses reveal that spatial variation in food-web structure along the environmental gradients is partly related to species turnover. However, the higher interaction turnover compared to species turnover along these gradients indicates a consistent modification of food-web structure, implying that interacting species may co-vary in space. In conclusion, our study shows how environmental heterogeneity, via environmental filtering, influences not only turnover in species composition, but also the structure of food webs over large spatial scales. |
format |
Article in Journal/Newspaper |
author |
Kortsch, Susanne Primicerio, Raul Aschan, Michaela Lind, Sigrid Dolgov, Andrey V. Planque, Benjamin |
author_facet |
Kortsch, Susanne Primicerio, Raul Aschan, Michaela Lind, Sigrid Dolgov, Andrey V. Planque, Benjamin |
author_sort |
Kortsch, Susanne |
title |
Food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
title_short |
Food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
title_full |
Food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
title_fullStr |
Food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
title_full_unstemmed |
Food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
title_sort |
food-web structure varies along environmental gradients in a high-latitude marine ecosystem |
publisher |
Wiley |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14267 https://doi.org/10.1111/ecog.03443 |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Arctic Ocean Barents Sea Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Barents Sea Sea ice |
op_relation |
Ecography info:eu-repo/grantAgreement/RCN/SIPHINIFES/228896/Norway/The Arctic Ocean Ecosystem - Polhavets økosystem// Forskningsrådet: ? info:eu-repo/grantAgreement/EC/H2020/677039/EU/Co-creating a decision support framework to ensure sustainable fish production in Europe under climate change/ClimeFish/ Kortsch, S., Primicerio, R., Aschan, M., Lind, S. L., Dolgov, A. V. & Planque, B. (2018). Food-web structure varies along environmental gradients in a high-latitude marine ecosystem. Ecography, 41, 1-14. http://doi.org/10.1111/ecog.03443 FRIDAID 1636375 doi:10.1111/ecog.03443 0906-7590 1600-0587 https://hdl.handle.net/10037/14267 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1111/ecog.03443 |
container_title |
Ecography |
container_volume |
42 |
container_issue |
2 |
container_start_page |
295 |
op_container_end_page |
308 |
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1766301651761627136 |