Blar i forfatter Artikler, rapporter og annet (arktisk og marin biologi) "Adams, Colin Ean"

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    • 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 (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-08)
      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 ...

    • Causes and consequences of ontogenetic dietary shifts: a global synthesis using fish models 

      Sanchez-Hernandez, Javier; Nunn, Andy D; Adams, Colin Ean; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-24)
      Ontogenetic dietary shifts (ODSs), the changes in diet utilisation occurring over the life span of an individual consumer, are widespread in the animal kingdom. Understanding ODSs provides fundamental insights into the biological and ecological processes that function at the individual, population and community levels, and is critical for the development and testing of hypotheses around key concepts ...

    • Discrete foraging niches promote ecological, phenotypic, and genetic divergence in sympatric whitefish (Coregonus lavaretus) 

      Siwertsson, Anna; Knudsen, Rune; Præbel, Kim; Adams, Colin Ean; Newton, Jason; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Natural populations often vary in their degree of ecological, morphological and genetic divergence. This variation can be arranged along an ecological speciation continuum of increasingly discrete variation, with high inter-individual variation at one end and well defined species in the other. In postglacial fishes, evolutionary divergence has commonly resulted in the co-occurrence of a pelagic and ...

    • Divergent functional traits in three sympatric Arctic charr Salvelinus alpinus morphs are not coupled with the age of the lineage divergence 

      Bryce, Carolyn; Alicia, Fraser; Knudsen, Rune; Greer, Ron; Adams, Colin Ean (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-24)
      Three genetically discrete morphs of Arctic charr in Loch Rannoch, Scotland originated from a recent divergence within the lake (in situ) (piscivore and benthivore morphs) and from secondary contact of two older lineages (ex situ; a planktivore–piscivore/ benthivore divergence). To test if the expression of traits with strong functional roles was linked to the age of the divergence, fin and ...

    • Geographic hierarchical population genetic structuring in British European whitefish (Coregonus lavaretus) and its implications for conservation 

      Crotti, M; Adams, Colin Ean; Etheridge, Elizabeth C.; Bean, Colin W.; Gowans, Andrew R.D.; Knudsen, Rune; Lyle, Alex A.; Maitland, P. S.; Winfield, Ian J.; Elmer, K. R.; Præbel, Kim (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-04)
      The European whitefish <i>Coregonus lavaretus</i> complex represents one of the most diverse radiations within salmonids, with extreme morphological and genetic differentiation across its range. Such variation has led to the assignment of many populations to separate species. In Great Britain, the seven native populations of <i>C. lavaretus</i> (two in Scotland, four in England, one in Wales) were ...

    • Parallel and non-parallel morphological divergence among foraging specialists in European whitefish (Coregonus lavaretus) 

      Siwertsson, Anna; Knudsen, Rune; Adams, Colin Ean; Præbel, Kim; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Parallel phenotypic evolution occurs when independent populations evolve similar traits in response to similar selective regimes. However, populations inhabiting similar environments also frequently show some phenotypic differences that result from non-parallel evolution. In this study, we quantified the relative importance of parallel evolution to similar foraging regimes and nonparallel lake-specific ...

    • A way forward with eco evo devo: an extended theory of resource polymorphism with postglacial fishes as model systems 

      Skulason, Skuli; Parsons, Kevin J; Svanback, Richard; Räsänen, Katja; Ferguson, Moira M; Adams, Colin Ean; Amundsen, Per-Arne; Bartels, Pia; Bean, Colin W.; Boughman, Janette W.; Englund, Göran; Gudbrandsson, Johannes; Hooker, Oliver E.; Hudson, Alan G; Kahilainen, Kimmo Kalevi; Knudsen, Rune; Kristjánsson, Bjarni Kr.; Leblanc, Camille A-L; Jonsson, Zophonias; Ohlund, Gunnar; Smith, Carl; Snorrason, Sigurdur S (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-19)
      A major goal of evolutionary science is to understand how biological diversity is generated and altered. Despite considerable advances, we still have limited insight into how phenotypic variation arises and is sorted by natural selection. Here we argue that an integrated view, which merges ecology, evolution and developmental biology (eco evo devo) on an equal footing, is needed to understand the ...