Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators
International audience How interspecific interactions change across scales is poorly known. Such knowledge might help us understand how species interact within communities and highlight scale-dependent ecological processes in play among species. Here, I propose to analyze the inter-annual variation...
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ftunivnantes:oai:HAL:hal-03472738v1 2023-05-15T14:48:21+02:00 Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators Bellier, Edwige The Arctic University of Norway Tromsø, Norway (UiT) 2018-10-04 https://hal.science/hal-03472738 https://doi.org/10.1007/s00300-018-2402-6 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2402-6 hal-03472738 https://hal.science/hal-03472738 doi:10.1007/s00300-018-2402-6 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-03472738 Polar Biology, 2018, 42, pp.99 - 113. ⟨10.1007/s00300-018-2402-6⟩ Barents Sea Facilitation Interspecific competition Large-scale structure Niche differentiation Residuals Scale-dependent Seabirds Annual variation [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1007/s00300-018-2402-6 2023-01-18T00:20:35Z International audience How interspecific interactions change across scales is poorly known. Such knowledge might help us understand how species interact within communities and highlight scale-dependent ecological processes in play among species. Here, I propose to analyze the inter-annual variation of a species assemblage at different ecological levels. For this, I joined a two-stage modeling approach and a spatially explicit multivariate model to analyze the interspecies relationships among six species of pelagic seabirds from 2004 to 2015 in the Barents Sea. The large-scale (~400 km) pattern of interactions revealed by the analyses suggests a change in the composition of the seabird community along the climatic gradient from south to north. At medium-scale (~300 km), the community was split into two areas (i.e., Arctic and sub-Arctic areas) suggesting niche differentiation of Arctic and sub-Arctic species driven by resource partitioning and interference competition. At a small-scale (~40 km), species with different body sizes were positively associated suggesting facilitation for accessing food although the species with the smallest body size was negatively associated with the species involved in the facilitation process suggesting interspecific interference competition. Over the years, the large-scale patterns were persistent, suggesting niche establishment, while small-scale patterns were highly variable suggesting only ephemeral interactions among species. My study demonstrates that interspecific relationships are scale-dependent and play major roles in structuring community. Untangling how species are associated with different ecological levels over time is indispensable to better understand how community structure contributes to ecological system dynamics. Article in Journal/Newspaper Arctic Barents Sea Polar Biology Université de Nantes: HAL-UNIV-NANTES Arctic Barents Sea Polar Biology 42 1 99 113 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Barents Sea Facilitation Interspecific competition Large-scale structure Niche differentiation Residuals Scale-dependent Seabirds Annual variation [SDV]Life Sciences [q-bio] |
spellingShingle |
Barents Sea Facilitation Interspecific competition Large-scale structure Niche differentiation Residuals Scale-dependent Seabirds Annual variation [SDV]Life Sciences [q-bio] Bellier, Edwige Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators |
topic_facet |
Barents Sea Facilitation Interspecific competition Large-scale structure Niche differentiation Residuals Scale-dependent Seabirds Annual variation [SDV]Life Sciences [q-bio] |
description |
International audience How interspecific interactions change across scales is poorly known. Such knowledge might help us understand how species interact within communities and highlight scale-dependent ecological processes in play among species. Here, I propose to analyze the inter-annual variation of a species assemblage at different ecological levels. For this, I joined a two-stage modeling approach and a spatially explicit multivariate model to analyze the interspecies relationships among six species of pelagic seabirds from 2004 to 2015 in the Barents Sea. The large-scale (~400 km) pattern of interactions revealed by the analyses suggests a change in the composition of the seabird community along the climatic gradient from south to north. At medium-scale (~300 km), the community was split into two areas (i.e., Arctic and sub-Arctic areas) suggesting niche differentiation of Arctic and sub-Arctic species driven by resource partitioning and interference competition. At a small-scale (~40 km), species with different body sizes were positively associated suggesting facilitation for accessing food although the species with the smallest body size was negatively associated with the species involved in the facilitation process suggesting interspecific interference competition. Over the years, the large-scale patterns were persistent, suggesting niche establishment, while small-scale patterns were highly variable suggesting only ephemeral interactions among species. My study demonstrates that interspecific relationships are scale-dependent and play major roles in structuring community. Untangling how species are associated with different ecological levels over time is indispensable to better understand how community structure contributes to ecological system dynamics. |
author2 |
The Arctic University of Norway Tromsø, Norway (UiT) |
format |
Article in Journal/Newspaper |
author |
Bellier, Edwige |
author_facet |
Bellier, Edwige |
author_sort |
Bellier, Edwige |
title |
Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators |
title_short |
Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators |
title_full |
Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators |
title_fullStr |
Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators |
title_full_unstemmed |
Variation of interspecific interactions at different ecological levels within an assemblage of Arctic marine predators |
title_sort |
variation of interspecific interactions at different ecological levels within an assemblage of arctic marine predators |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-03472738 https://doi.org/10.1007/s00300-018-2402-6 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Polar Biology |
genre_facet |
Arctic Barents Sea Polar Biology |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-03472738 Polar Biology, 2018, 42, pp.99 - 113. ⟨10.1007/s00300-018-2402-6⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2402-6 hal-03472738 https://hal.science/hal-03472738 doi:10.1007/s00300-018-2402-6 |
op_doi |
https://doi.org/10.1007/s00300-018-2402-6 |
container_title |
Polar Biology |
container_volume |
42 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
113 |
_version_ |
1766319443667845120 |