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Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes
Owens, H.L. (2015). Evolution of codfishes (Teleostei: Gadinae) in geographical and ecological space: evidence that physiological limits drove diversification of subarctic fishes. J. Biogeogr. 42(6): 1091-1102. hdl.handle.net/10.1111/jbi.12483
In: Journal of Biogeography. Wiley-Blackwell: Oxford. ISSN 0305-0270, more
Peer reviewed article  

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Keywords
    Climate change; Pleistocene; Radiation; Temperate; Gadinae; Marine
Author keywords
    Arctic; Dispersal; Ecological niche modelling; Gadinae; Speciation pump; Vicariance

Author  Top 
  • Owens, H.L.

Abstract
    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.

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