Blar i forfatter Artikler, rapporter og annet (farmasi) "Amundsen, Per-Arne"

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    • The competitive edge of an invading specialist 

      Bøhn, Thomas; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2001-08-01)
      Introduced species represent major threats to native and natural biodiversity. On the other hand, biologists may increase the understanding of ecological interactions by following communities during establishment of exotic species. Accordingly, feeding ecology and habitat use were studied in native whitefish (<i>Coregonus lavaretus</i>) and recently invading vendace (<i>C. albula</i>) in two lake ...

    • Invasion-mediated changes in the population biology of a dimorphic whitefish Coregonus lavaretus population 

      Bøhn, Thomas; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2004-02-26)
      Population biology changes in native dimorphic whitefish <i>Coregonus lavaretus</i> were studied over a decade in the subarctic Pasvik watercourse, where large biotric changes occurred due to an invasion by vendace <i> C. albula</i>. Although initially recorded in the upstream part of the watercourse, where it is now the dominant pelagic species, the vendace subsequently also colonised the downstream ...