Blar i Institutt for natur, helse og miljø på emneord "Population control"

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    • Comeback of the beaver Castor fiber : an overview of old and new conservation problems 

      Nolet, Bart A.; Rosell, Frank (Journal article; Peer reviewed, 1998)
      Due to over-hunting c. 1200 Eurasian previous termbeaversnext term Castor fiber survived in eight relict populations in Europe and Asia at the beginning of the 20th century. Following hunting restrictions and translocation ...

    • Sex and age composition of spring-hunted Eurasian beaver in Norway 

      Parker, Howard; Rosell, Frank; Hermansen, Tore André; Sørløkk, Gjermund; Stærk, Martin (Journal article; Peer reviewed, 2002)
      In Norway, Sweden and Finland most Eurasian beaver (Castor fiber) harvested are shot in April and May. As beaver cannot be sexed or effectively aged under spring hunting conditions, hunters normally shoot the first animal ...