Sökning: "Asbjørn Vøllestad"

Hittade 2 avhandlingar innehållade orden Asbjørn Vøllestad.

1. 1. Modeling Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) responses to river habitat alteration

   Författare :Kristine Lund Bjørnås; John Piccolo; Olle Calles; Steven F. Railsback; Leif Asbjørn Vøllestad; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ecohydraulics; Restoration; Natural resource management; Biology; Biologi;

   Sammanfattning : Half the world’s river volume is affected by flow alterations and/or fragmentation, a figure that is likely to increase with the current global surge in hydropower development. At the same time, freshwater biodiversity is in rapid decline. LÄS MER

3. 2. Migratory behaviour and adaptive divergence in life-history traits of pike (Esox lucius)

   Författare :Petter Tibblin; Per Larsson; Anders Forsman; Asbjørn Vøllestad; Linnéuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; conservation; evolution; homing; local adaptation; management; phenotypic variation; population divergence; selection; sympatric;

   Sammanfattning : Population divergence shaped by natural selection is central to evolutionary ecology research and has been in focus since Darwin formulated “The origin of species”. Still, the process of adaptive divergence among sympatric populations is poorly understood. LÄS MER