Data from: Species interactions, environmental gradients and body size shape population niche width ...
Competition for shared resources is commonly assumed to restrict population-level niche width of coexisting species. However, the identity and abundance of coexisting species, the prevailing environmental conditions, and the individual body size may shape the effects of interspecific interactions on...
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Online Access: | https://dx.doi.org/10.5061/dryad.gf1vhhmqz https://datadryad.org/stash/dataset/doi:10.5061/dryad.gf1vhhmqz |
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ftdatacite:10.5061/dryad.gf1vhhmqz 2024-02-04T09:59:23+01:00 Data from: Species interactions, environmental gradients and body size shape population niche width ... Eloranta, Antti Finstad, Anders Sandlund, Odd Knudsen, Rune Kuparinen, Anna Amundsen, Per-Arne 2021 https://dx.doi.org/10.5061/dryad.gf1vhhmqz https://datadryad.org/stash/dataset/doi:10.5061/dryad.gf1vhhmqz en eng Dryad https://dx.doi.org/10.1002/ece3.1464 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 FOS Biological sciences Dataset dataset 2021 ftdatacite https://doi.org/10.5061/dryad.gf1vhhmqz10.1002/ece3.1464 2024-01-05T04:51:50Z Competition for shared resources is commonly assumed to restrict population-level niche width of coexisting species. However, the identity and abundance of coexisting species, the prevailing environmental conditions, and the individual body size may shape the effects of interspecific interactions on species’ niche width. Here we study the effects of inter- and intraspecific interactions, lake area and altitude, and fish body size on the trophic niche width and resource use of a generalist predator, the littoral-dwelling large, sparsely-rakered morph of European whitefish (Coregonus lavaretus; hereafter LSR whitefish). We use stable isotope, diet and survey fishing data from 14 subarctic lakes along an environmental gradient in northern Norway. The isotopic niche width of LSR whitefish showed a humped-shaped relationship with increasing relative abundance of sympatric competitors, suggesting widest population niche at intermediate intensity of interspecific interactions. The isotopic niche width of LSR ... : The 14 study lakes are relatively small (0.19–23.7 km2), dimictic and meso- or oligotrophic lakes situated along an altitude gradient (275–540 m a.s.l.) in the Finnmark region in northern Norway. The study area has very limited human activity and the catchment areas consist mainly of mountain birch forest and bogs. No major fishery or any stocking activity occur in the study lakes. Besides whitefish, perch, grayling and charr, some lakes have relatively scarce populations of burbot (Lota lota), brown trout (Salmo trutta), pike (Esox lucius), European minnow (Phoxinus phoxinus) and/or nine-spined stickleback (Pungitius pungitius). LSR whitefish is present in all study lakes, whereas six of the lakes host polymorphic whitefish populations having the additional presence of a small pelagic, densely-rakered (DR) and/or a small profundal, sparsely-rakered (SSR) whitefish morph (Siwertsson et al., 2013; Häkli et al., 2018). Survey fishing was conducted between 8th August and 17th September in 2005–2009 using the ... Dataset Burbot Finnmark Lota lota Northern Norway Subarctic Finnmark lota DataCite Metadata Store (German National Library of Science and Technology) Norway |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
FOS Biological sciences |
spellingShingle |
FOS Biological sciences Eloranta, Antti Finstad, Anders Sandlund, Odd Knudsen, Rune Kuparinen, Anna Amundsen, Per-Arne Data from: Species interactions, environmental gradients and body size shape population niche width ... |
topic_facet |
FOS Biological sciences |
description |
Competition for shared resources is commonly assumed to restrict population-level niche width of coexisting species. However, the identity and abundance of coexisting species, the prevailing environmental conditions, and the individual body size may shape the effects of interspecific interactions on species’ niche width. Here we study the effects of inter- and intraspecific interactions, lake area and altitude, and fish body size on the trophic niche width and resource use of a generalist predator, the littoral-dwelling large, sparsely-rakered morph of European whitefish (Coregonus lavaretus; hereafter LSR whitefish). We use stable isotope, diet and survey fishing data from 14 subarctic lakes along an environmental gradient in northern Norway. The isotopic niche width of LSR whitefish showed a humped-shaped relationship with increasing relative abundance of sympatric competitors, suggesting widest population niche at intermediate intensity of interspecific interactions. The isotopic niche width of LSR ... : The 14 study lakes are relatively small (0.19–23.7 km2), dimictic and meso- or oligotrophic lakes situated along an altitude gradient (275–540 m a.s.l.) in the Finnmark region in northern Norway. The study area has very limited human activity and the catchment areas consist mainly of mountain birch forest and bogs. No major fishery or any stocking activity occur in the study lakes. Besides whitefish, perch, grayling and charr, some lakes have relatively scarce populations of burbot (Lota lota), brown trout (Salmo trutta), pike (Esox lucius), European minnow (Phoxinus phoxinus) and/or nine-spined stickleback (Pungitius pungitius). LSR whitefish is present in all study lakes, whereas six of the lakes host polymorphic whitefish populations having the additional presence of a small pelagic, densely-rakered (DR) and/or a small profundal, sparsely-rakered (SSR) whitefish morph (Siwertsson et al., 2013; Häkli et al., 2018). Survey fishing was conducted between 8th August and 17th September in 2005–2009 using the ... |
format |
Dataset |
author |
Eloranta, Antti Finstad, Anders Sandlund, Odd Knudsen, Rune Kuparinen, Anna Amundsen, Per-Arne |
author_facet |
Eloranta, Antti Finstad, Anders Sandlund, Odd Knudsen, Rune Kuparinen, Anna Amundsen, Per-Arne |
author_sort |
Eloranta, Antti |
title |
Data from: Species interactions, environmental gradients and body size shape population niche width ... |
title_short |
Data from: Species interactions, environmental gradients and body size shape population niche width ... |
title_full |
Data from: Species interactions, environmental gradients and body size shape population niche width ... |
title_fullStr |
Data from: Species interactions, environmental gradients and body size shape population niche width ... |
title_full_unstemmed |
Data from: Species interactions, environmental gradients and body size shape population niche width ... |
title_sort |
data from: species interactions, environmental gradients and body size shape population niche width ... |
publisher |
Dryad |
publishDate |
2021 |
url |
https://dx.doi.org/10.5061/dryad.gf1vhhmqz https://datadryad.org/stash/dataset/doi:10.5061/dryad.gf1vhhmqz |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Burbot Finnmark Lota lota Northern Norway Subarctic Finnmark lota |
genre_facet |
Burbot Finnmark Lota lota Northern Norway Subarctic Finnmark lota |
op_relation |
https://dx.doi.org/10.1002/ece3.1464 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.gf1vhhmqz10.1002/ece3.1464 |
_version_ |
1789964166742671360 |