Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs
Source at https://doi.org/10.1002/ece3.3224 . A study of body and head development in three sympatric reproductively isolated Arctic charr (Salvelinus alpinus (L.)) morphs from a subarctic lake (Skogsfjordvatn, northern Norway) revealed allometric trajectories that resulted in morphological differen...
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Online Access: | https://hdl.handle.net/10037/12354 https://doi.org/10.1002/ece3.3224 |
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ftunivtroemsoe:oai:munin.uit.no:10037/12354 2023-05-15T14:25:45+02:00 Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs Simonsen, Marianne Siwertsson, Anna Adams, Colin Ean Amundsen, Per-Arne Præbel, Kim Knudsen, Rune 2017-08-08 https://hdl.handle.net/10037/12354 https://doi.org/10.1002/ece3.3224 eng eng Wiley Open Access Ecology and Evolution Simonsen, M., Siwertsson, A., Adams, C.E., Amundsen, P.A., Præbel, K. & Knudsen, R. (2017). Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs. Ecology and Evolution, 7(18), 7277-7289. FRIDAID 1485175 doi:10.1002/ece3.3224 2045-7758 https://hdl.handle.net/10037/12354 openAccess niche segregation phenotypic diversity polymorphism salmonids VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470 Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1002/ece3.3224 2021-06-25T17:55:36Z Source at https://doi.org/10.1002/ece3.3224 . A study of body and head development in three sympatric reproductively isolated Arctic charr (Salvelinus alpinus (L.)) morphs from a subarctic lake (Skogsfjordvatn, northern Norway) revealed allometric trajectories that resulted in morphological differences. The three morphs were ecologically assigned to a littoral omnivore, a profundal benthivore and a profundal piscivore, and this was confirmed by genetic analyses (microsatellites). Principal component analysis was used to identify the variables responsible for most of the morphological variation of the body and head shape. The littoral omnivore and the profundal piscivore morph had convergent allometric trajectories for the most important head shape variables, developing bigger mouths and relatively smaller eyes with increasing head size. The two profundal morphs shared common trajectories for the variables explaining most of the body and head shape variation, namely head size relative to body size, placement of the dorsal and pelvic fins, eye size and mouth size. In contrast, the littoral omnivore and the profundal benthivore morphs were not on common allometric trajectories for any of the examined variables. The findings suggest that different selective pressures could have been working on traits related to their trophic niche such as habitat and diet utilization of the three morphs, with the two profundal morphs experiencing almost identical environmental conditions. Article in Journal/Newspaper Arctic Arctic charr Arctic Northern Norway Salvelinus alpinus Subarctic University of Tromsø: Munin Open Research Archive Arctic Norway Ecology and Evolution 7 18 7277 7289 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
niche segregation phenotypic diversity polymorphism salmonids VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470 |
spellingShingle |
niche segregation phenotypic diversity polymorphism salmonids VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470 Simonsen, Marianne Siwertsson, Anna Adams, Colin Ean Amundsen, Per-Arne Præbel, Kim Knudsen, Rune Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs |
topic_facet |
niche segregation phenotypic diversity polymorphism salmonids VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470 |
description |
Source at https://doi.org/10.1002/ece3.3224 . A study of body and head development in three sympatric reproductively isolated Arctic charr (Salvelinus alpinus (L.)) morphs from a subarctic lake (Skogsfjordvatn, northern Norway) revealed allometric trajectories that resulted in morphological differences. The three morphs were ecologically assigned to a littoral omnivore, a profundal benthivore and a profundal piscivore, and this was confirmed by genetic analyses (microsatellites). Principal component analysis was used to identify the variables responsible for most of the morphological variation of the body and head shape. The littoral omnivore and the profundal piscivore morph had convergent allometric trajectories for the most important head shape variables, developing bigger mouths and relatively smaller eyes with increasing head size. The two profundal morphs shared common trajectories for the variables explaining most of the body and head shape variation, namely head size relative to body size, placement of the dorsal and pelvic fins, eye size and mouth size. In contrast, the littoral omnivore and the profundal benthivore morphs were not on common allometric trajectories for any of the examined variables. The findings suggest that different selective pressures could have been working on traits related to their trophic niche such as habitat and diet utilization of the three morphs, with the two profundal morphs experiencing almost identical environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Simonsen, Marianne Siwertsson, Anna Adams, Colin Ean Amundsen, Per-Arne Præbel, Kim Knudsen, Rune |
author_facet |
Simonsen, Marianne Siwertsson, Anna Adams, Colin Ean Amundsen, Per-Arne Præbel, Kim Knudsen, Rune |
author_sort |
Simonsen, Marianne |
title |
Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs |
title_short |
Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs |
title_full |
Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs |
title_fullStr |
Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs |
title_full_unstemmed |
Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs |
title_sort |
allometric trajectories of body and head morphology in three sympatric arctic charr (salvelinus alpinus (l.)) morphs |
publisher |
Wiley Open Access |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/12354 https://doi.org/10.1002/ece3.3224 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Arctic charr Arctic Northern Norway Salvelinus alpinus Subarctic |
genre_facet |
Arctic Arctic charr Arctic Northern Norway Salvelinus alpinus Subarctic |
op_relation |
Ecology and Evolution Simonsen, M., Siwertsson, A., Adams, C.E., Amundsen, P.A., Præbel, K. & Knudsen, R. (2017). Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs. Ecology and Evolution, 7(18), 7277-7289. FRIDAID 1485175 doi:10.1002/ece3.3224 2045-7758 https://hdl.handle.net/10037/12354 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/ece3.3224 |
container_title |
Ecology and Evolution |
container_volume |
7 |
container_issue |
18 |
container_start_page |
7277 |
op_container_end_page |
7289 |
_version_ |
1766298216229240832 |