Blar i USN Open Archive på forfatter "Gustavsen, Per Øyvind"
-
Errors associated with moose-hunter counts of occupied beaver Castor fiber lodges in Norway
Parker, Howard; Rosell, Frank; Gustavsen, Per Øyvind (Journal article; Peer reviewed, 2002)In Norway, Sweden and Finland moose Alces alces hunting teams are often employed to survey occupied beaver (Castor fiber and C. canadensis) lodges while hunting. Results may be used to estimate population density or trend, ...