Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes
Aim: To develop a holistic biogeographical history of codfishes in the subfamily Gadinae based on historical relationships, ecological niche, and evolution of physiological tolerances. Two alternative diversification scenarios were tested in two co-distributed, Northern Hemisphere clades: (1) clade...
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ftdryad:oai:v1.datadryad.org:10255/dryad.78136 2023-05-15T14:54:28+02:00 Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes Owens, Hannah L. Northern Hemisphere Arctic and subarctic oceans Oligocene through Holocene Pleistocene 2015-03-03T17:06:35Z http://hdl.handle.net/10255/dryad.78136 https://doi.org/10.5061/dryad.352th unknown doi:10.5061/dryad.352th/1 doi:10.5061/dryad.352th/2 doi:10.1111/jbi.12483 doi:10.5061/dryad.352th Owens HL (2015) Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes. Journal of Biogeography 42(60): 1091-1102. http://hdl.handle.net/10255/dryad.78136 climate change dispersal ecological niche modelling radiation speciation pump temperate vicariance Article 2015 ftdryad https://doi.org/10.5061/dryad.352th https://doi.org/10.5061/dryad.352th/1 https://doi.org/10.5061/dryad.352th/2 https://doi.org/10.1111/jbi.12483 2020-01-01T15:15:23Z Aim: To develop a holistic biogeographical history of codfishes in the subfamily Gadinae based on historical relationships, ecological niche, and evolution of physiological tolerances. Two alternative diversification scenarios were tested in two co-distributed, Northern Hemisphere clades: (1) clade ancestors were temperate, and environmental niche has been conserved over evolutionary time, implying that speciation was driven by vicariance associated with ice sheet formation; and (2) clade ancestors were Arctic, and species convergently adapted to temperate environmental conditions, implying that speciation was driven by repeated adaption to temperate environments. Location: Northern Hemisphere Arctic and subarctic oceans. Methods: Fifty-five new sequences of four genes from 23 tissue samples were combined with 10 GenBank sequences to generate a time-calibrated phylogenetic hypothesis. Combining the phylogeny with information on species' ecological niche tolerances inferred from correlational models, I reconstructed ancestral environmental tolerances of each of the focal clades. These results were combined with Bayesian area-based biogeographical analysis and regional palaeoclimatic history to develop a holistic biogeographical history of Gadinae. Results: Of 18 environmental variables describing species' tolerances to salinity, temperature, sea ice concentration, and mixed layer depth, only mean, maximum and minimum sea bottom temperature, and mean and minimum sea surface temperature showed phylogenetic signal across Gadinae. Both ecological niche and geographical distributions of gadine fishes are largely conservative, but two clades contain both Pacific and Atlantic species. Focal clade divergence time estimates suggest a Pliocene origin for both, with further Pleistocene divergence. Main conclusions: Reconstructed ancestral environmental tolerances of crown cods and tomcods support a temperate origin of both groups. The timing of diversification of these two clades and the intolerance of temperate species to sea ice suggest that cyclical Arctic ice formation drove divergence. Future sea ice reduction may have dramatic consequences for distributions and persistence of commercially important species when currently allopatric temperate species come into secondary contact. Article in Journal/Newspaper Arctic Climate change Ice Sheet Sea ice Subarctic Dryad Digital Repository (Duke University) Arctic Pacific |
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Open Polar |
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Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
climate change dispersal ecological niche modelling radiation speciation pump temperate vicariance |
spellingShingle |
climate change dispersal ecological niche modelling radiation speciation pump temperate vicariance Owens, Hannah L. Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
topic_facet |
climate change dispersal ecological niche modelling radiation speciation pump temperate vicariance |
description |
Aim: To develop a holistic biogeographical history of codfishes in the subfamily Gadinae based on historical relationships, ecological niche, and evolution of physiological tolerances. Two alternative diversification scenarios were tested in two co-distributed, Northern Hemisphere clades: (1) clade ancestors were temperate, and environmental niche has been conserved over evolutionary time, implying that speciation was driven by vicariance associated with ice sheet formation; and (2) clade ancestors were Arctic, and species convergently adapted to temperate environmental conditions, implying that speciation was driven by repeated adaption to temperate environments. Location: Northern Hemisphere Arctic and subarctic oceans. Methods: Fifty-five new sequences of four genes from 23 tissue samples were combined with 10 GenBank sequences to generate a time-calibrated phylogenetic hypothesis. Combining the phylogeny with information on species' ecological niche tolerances inferred from correlational models, I reconstructed ancestral environmental tolerances of each of the focal clades. These results were combined with Bayesian area-based biogeographical analysis and regional palaeoclimatic history to develop a holistic biogeographical history of Gadinae. Results: Of 18 environmental variables describing species' tolerances to salinity, temperature, sea ice concentration, and mixed layer depth, only mean, maximum and minimum sea bottom temperature, and mean and minimum sea surface temperature showed phylogenetic signal across Gadinae. Both ecological niche and geographical distributions of gadine fishes are largely conservative, but two clades contain both Pacific and Atlantic species. Focal clade divergence time estimates suggest a Pliocene origin for both, with further Pleistocene divergence. Main conclusions: Reconstructed ancestral environmental tolerances of crown cods and tomcods support a temperate origin of both groups. The timing of diversification of these two clades and the intolerance of temperate species to sea ice suggest that cyclical Arctic ice formation drove divergence. Future sea ice reduction may have dramatic consequences for distributions and persistence of commercially important species when currently allopatric temperate species come into secondary contact. |
format |
Article in Journal/Newspaper |
author |
Owens, Hannah L. |
author_facet |
Owens, Hannah L. |
author_sort |
Owens, Hannah L. |
title |
Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
title_short |
Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
title_full |
Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
title_fullStr |
Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
title_full_unstemmed |
Data from: Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
title_sort |
data from: evolution of codfishes (teleostei: gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.78136 https://doi.org/10.5061/dryad.352th |
op_coverage |
Northern Hemisphere Arctic and subarctic oceans Oligocene through Holocene Pleistocene |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Climate change Ice Sheet Sea ice Subarctic |
genre_facet |
Arctic Climate change Ice Sheet Sea ice Subarctic |
op_relation |
doi:10.5061/dryad.352th/1 doi:10.5061/dryad.352th/2 doi:10.1111/jbi.12483 doi:10.5061/dryad.352th Owens HL (2015) Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes. Journal of Biogeography 42(60): 1091-1102. http://hdl.handle.net/10255/dryad.78136 |
op_doi |
https://doi.org/10.5061/dryad.352th https://doi.org/10.5061/dryad.352th/1 https://doi.org/10.5061/dryad.352th/2 https://doi.org/10.1111/jbi.12483 |
_version_ |
1766326192463413248 |