Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish
This article is part of Anna Siwertsons' doctoral thesis. Available in Munin at http://hdl.handle.net/10037/4566 In adaptive radiations, ecological opportunity (i.e. niche availability) is considered to be an important driver to increase phenotypic variation, but diversity may also be constrain...
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Evolutionary Ecology
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ftunivtroemsoe:oai:munin.uit.no:10037/4754 2023-05-15T15:13:25+02:00 Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish Siwertsson, Anna Knudsen, Rune Kahilainen, Kimmo Præbel, Kim Primicerio, Raul Amundsen, Per-Arne 2010 https://hdl.handle.net/10037/4754 eng eng Evolutionary Ecology Evolutionary Ecology Research 12(2011) nr. 8 s. 929-947 FRIDAID 864206 1522-0613 https://hdl.handle.net/10037/4754 URN:NBN:no-uit_munin_4468 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 Journal article Tidsskriftartikkel Peer reviewed 2010 ftunivtroemsoe 2021-06-25T17:53:28Z This article is part of Anna Siwertsons' doctoral thesis. Available in Munin at http://hdl.handle.net/10037/4566 In adaptive radiations, ecological opportunity (i.e. niche availability) is considered to be an important driver to increase phenotypic variation, but diversity may also be constrained by historical factors related to colonization events. How do ecological opportunity and post-glacial colonization history affect the phenotypic diversity in a young species lineage? We quantified phenotypic diversity by the number of co-existing morphs and a heritable morphological trait (gill raker number) in 39 European whitefish (Coregonus lavaretus) populations. Level of diversity was compared within and between three sub-arctic watercourses, and explored in relation to ecological opportunity (habitat availability and lake productivity) and colonization history (lake elevation and position). We found three main distribution patterns of gill raker number: unimodal (approximate range 20–30), bimodal (20–30 vs. 30–40), and trimodal (15–20 vs. 20–30 vs. 30–40), representing monomorphic, dimorphic, and trimorphic populations respectively. In addition, a pattern intermediate to the monomorphic and dimorphic populations was recorded in all watercourses. Polymorphism increased from west to east among watercourses, which can mainly be explained by post-glacial colonization history. Higher diversity was also observed in downstream sites within each watercourse, and increased with lake size and productivity. Our findings confirm that both ecological opportunity and historical constraints related to post-glacial colonization influence phenotypic patterns in a diverging lineage. Article in Journal/Newspaper Arctic University of Tromsø: Munin Open Research Archive Arctic |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 Siwertsson, Anna Knudsen, Rune Kahilainen, Kimmo Præbel, Kim Primicerio, Raul Amundsen, Per-Arne Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498 |
description |
This article is part of Anna Siwertsons' doctoral thesis. Available in Munin at http://hdl.handle.net/10037/4566 In adaptive radiations, ecological opportunity (i.e. niche availability) is considered to be an important driver to increase phenotypic variation, but diversity may also be constrained by historical factors related to colonization events. How do ecological opportunity and post-glacial colonization history affect the phenotypic diversity in a young species lineage? We quantified phenotypic diversity by the number of co-existing morphs and a heritable morphological trait (gill raker number) in 39 European whitefish (Coregonus lavaretus) populations. Level of diversity was compared within and between three sub-arctic watercourses, and explored in relation to ecological opportunity (habitat availability and lake productivity) and colonization history (lake elevation and position). We found three main distribution patterns of gill raker number: unimodal (approximate range 20–30), bimodal (20–30 vs. 30–40), and trimodal (15–20 vs. 20–30 vs. 30–40), representing monomorphic, dimorphic, and trimorphic populations respectively. In addition, a pattern intermediate to the monomorphic and dimorphic populations was recorded in all watercourses. Polymorphism increased from west to east among watercourses, which can mainly be explained by post-glacial colonization history. Higher diversity was also observed in downstream sites within each watercourse, and increased with lake size and productivity. Our findings confirm that both ecological opportunity and historical constraints related to post-glacial colonization influence phenotypic patterns in a diverging lineage. |
format |
Article in Journal/Newspaper |
author |
Siwertsson, Anna Knudsen, Rune Kahilainen, Kimmo Præbel, Kim Primicerio, Raul Amundsen, Per-Arne |
author_facet |
Siwertsson, Anna Knudsen, Rune Kahilainen, Kimmo Præbel, Kim Primicerio, Raul Amundsen, Per-Arne |
author_sort |
Siwertsson, Anna |
title |
Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
title_short |
Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
title_full |
Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
title_fullStr |
Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
title_full_unstemmed |
Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
title_sort |
sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish |
publisher |
Evolutionary Ecology |
publishDate |
2010 |
url |
https://hdl.handle.net/10037/4754 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Evolutionary Ecology Research 12(2011) nr. 8 s. 929-947 FRIDAID 864206 1522-0613 https://hdl.handle.net/10037/4754 URN:NBN:no-uit_munin_4468 |
op_rights |
openAccess |
_version_ |
1766343975357120512 |