Blar i Artikler, rapporter, filmer / Articles, reports, movies på forfatter "Jahren, Torfinn"
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Declining reproductive output in capercaillie and black grouse – 16 countries and 80 years
Jahren, Torfinn; Storaas, Torstein; Willebrand, Tomas; Moa, Pål Fossland; Hagen, Bjørn Roar (Journal article; Peer reviewed, 2016)Declines in populations of capercaillie (Tetrao urogallus) and black grouse (Lyrurus tetrix) have been reported from both Central Europe and the continuous boreal forests of Fennoscandia. While intensified land-use is ... -
The impact of human land use and landscape productivity on population dynamics of red fox in southeastern Norway
Jahren, Torfinn; Odden, Morten; Linnell, John Durrus; Panzacchi, Manuela (Peer reviewed; Journal article, 2020)In the boreal forest, the red fox (Vulpes vulpes) is a key species due to its many strong food web linkages and its exploitation of niches that form in the wake of human activities. Recent altitudinal range expansion and ...