Blar i Brage NMBU på forfatter "Eiken, Hans Geir"
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Binneområder i Sør-Varanger
Wartiainen, Ingvild; Andreassen, Rune; Tobiassen, Camilla; Aarnes, Siv; Randa, Rolf; Turtumøygard, Stein; Wikan, Steinar; Eiken, Hans Geir (Bioforsk Rapport, Research report, 2009)Pasvikdalen i Sør-Varanger kommune har en av de tetteste brunbjørnbestandene (Ursus arctos) i Norge, med jevnlig observasjoner av binner med avkom. Ved å kombinere feltobservasjoner og genetiske data fra perioden 2004-2008 ... -
Family groups of brown bears in Sør-Varanger, Norway Application of SNP and STR markers to reconstruct pedigrees from DNA-samples noninvasively collected 2004-2016
Kopatz, Alexander; Andreassen, Rune; Kling, Daniel; Randa, Rolf; Forfang, Kristin; Hagen, Snorre; Eiken, Hans Geir (NIBIO Rapport;, Research report, 2017)We reconstructed family relationships, parent-child and siblings, among the brown bear (Ursus arctos) sampled in Sør-Varanger, Norway. Basis of this study are observed family relationships by the wildlife management. We ... -
Genetic structure and gene flow in a continuously distributed large terrestrial carnivore : the brown bear (Ursus arctos) in Northern Europe
Schregel, Julia (PhD Thesis;2015:72, Doctoral thesis, 2020-11-10)The aim of this thesis was to investigate large scale population structure and gene flow in the Northern European brown bear (Ursus arctos). Brown bears were reduced in numbers to near extinction during recent centuries ... -
Harvest is associated with the disruption of social and finescale genetic structure among matrilines of a solitary large carnivore
Frank, Shane; Pelletier, Fanie; Kopatz, Alexander; Bourret, Audrey; Garant, Dany; Swenson, Jon; Eiken, Hans Geir; Hagen, Snorre; Zedrosser, Andreas (Peer reviewed; Journal article, 2020)Harvest can disrupt wildlife populations by removing adults with naturally high survival. This can reshape sociospatial structure, genetic composition, fitness, and potentially affect evolution. Genetic tools can detect ... -
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos)
Rivrud, Inger Maren; Frank, Shane; Bischof, Richard; Mysterud, Atle; Steyaert, Sam; Hertel, Anne Gabriela; Hagen, Snorre; Eiken, Hans Geir; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2019)Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability ... -
Monitoring of the Pasvik-Inari-Pechenga brown bear (Ursus arctos) population in 2019 using hair trap
Beddari, Benedicte Lissner; Ogurtsov, Sergey; Magga, Sari; Kangasniemi, Jaru; Fløystad, Ida; Søvik, Inger; Randa, Rolf; Ollila, Leif E.; Lindgren, Vetle; Bakke, Beate Banken; Beddari, Vilde; Polikarpova, Natalia; Ollila, Tuomo; Hagen, Snorre; Eiken, Hans Geir (NIBIO Rapport;, Research report, 2020)Siden 2005 har populasjonen av grenseoverskridene brunbjørn (Ursus arctos) i Trilateral Park Pasvik-Inari-Pechenga (Norge-Finland-Russland) blitt overvåket ved å bruke genetiske analyser av hår og ekskrement-prøver samlet ... -
Sex-specific genetic analysis indicates low correlation between demographic and genetic connectivity in the Scandinavian brown bear (Ursus arctos)
Schregel, Julia; Kopatz, Alexander; Eiken, Hans Geir; Swenson, Jon; Hagen, Snorre (Journal article; Peer reviewed, 2017)The degree of gene flow within and among populations, i.e. genetic population connectivity, may closely track demographic population connectivity. Alternatively, the rate of gene flow may change relative to the rate of ... -
Sociodemographic factors modulate the spatial response of brown bears to vacancies created by hunting
Frank, Shane C.; Leclerc, Martin; Pelletier, Fanie; Rosell, Frank Narve; Swenson, Jon; Bischof, Richard; Kindberg, Jonas; Eiken, Hans Geir; Hagen, Snorre; Zedrosser, Andreas (Journal article; Peer reviewed, 2017) -
Testing hair sampling on power poles as a potential method for DNA identification and monitoring brown bears
Kopatz, Alexander; Aspholm, Paul Eric; Rudolph, Anja; Eiken, Hans Geir; Schregel, Julia; Aarnes, Siv; Tobiassen, Camilla; Hagen, Snorre (Bioforsk Rapport, Research report, 2014)Genetic methods based on sampling of feces and hairs to study brown bears have become the method of choice for many wildlife researchers and managers. Feces and hairs are the most common sample material for DNA identification ...