Browsing Brage NMBU by Author "Sonerud, Geir Andreas"
Now showing items 1-11 of 11
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Bilberry seed production explains spatiotemporal synchronicity in bank vole population fluctuations in Norway
Selås, Vidar; Framstad, Erik; Rolstad, Jørund; Sonerud, Geir Andreas; Spidsø, Tor K.; Wegge, Per (Peer reviewed; Journal article, 2021)Population fluctuations of small rodents are often synchronized over larger areas (>100 km) than what could be explained by dispersal, suggesting that the synchronizing factor is weather-related and possibly mediated through ... -
Diet and diel pattern in the tawny owl (Strix aluco)
Vik, Jonas Olseng (Master thesis, 2017)Through continuous video monitoring of three tawny owls (Strix aluco) nests in Akershus county in southeast Norway during April and May 2016. I recorded prey deliveries and prey handling. A total of 284 prey items were ... -
Diet, diel pattern of prey deliveries and prey handling of nesting peregrines (Falco peregrinus) in Norway, as revealed by video monitoring
Bech, Joachim Solheim (Master thesis, 2016-08-15)The diet, diel pattern of prey deliveries, and prey handling behaviour of a nesting pair of the peregrine falcon (Falco peregrinus) in southeast Norway was studied with video recording equipment at the nest and direct ... -
Diet, prey deliveries and prey handling of nesting golden eagles (Aquila chrysaetos) in Oppland county, Norway, as revealed by video monitoring of four nests throughout the nestling period
Günther, Andreas (Master thesis, 2020)In this study I used video monitoring of nests throughout the nestling period to study diet, prey deliveries and prey handling of four breeding pairs of golden eagles (Aquila chrysaetos) in Oppland county, Norway. A total ... -
Diet, prey deliveries, and prey handling of nesting urban peregrines (Falco peregrinus) in England, as revealed by continuous video monitoring
Smith, Mari Louise (Master thesis, 2020)The peregrine falcon (Falco peregrinus) is one of the most studied birds of prey. New developments within video recordings, and particularly the use of web cameras at the nest of urban peregrines, has allowed for a more ... -
Home range and area use of female Eurasian kestrels (Falco tinnunculus) in the boreal forest during the breeding season
Cunningham, Sari Christine (Master thesis, 2013-09-18)I studied home range and area use of the female Eurasian kestrel (Falco tinnunculus), in the boreal forested area of Trysil municipality (61°00' - 61°41'N, 11°44' - 12°52'E) in the breeding season of 2011, a peak vole year. ... -
Prey choice, prey deliveries and prey handling in a generalist predator : video monitoring at a nest of the eagle owl (Bubo bubo)
Nyhammer, Vegard (Master thesis, 2016-07-26)To record prey delivery and handling, and nest of the eagle owl (Bubo bubo), a breeding pair was video monitored during 6 June – 25 July in Meland municipality in Hordaland County, Norway. A total of 49 prey items were ... -
Verdens beste ugleholker.
Solheim, Roar; Sonerud, Geir Andreas (Journal article, 2020) -
Video monitoring of ospreys (Pandion haliaetus) at the nest : prey deliveries, feeding time and potential family conflicts
Lien, Tuva Flor (Master thesis, 2017)Prey deliveries and feeding time was recorded and analyzed at two osprey (Pandion haliaetus) nests located in Østfold county, Norway during the breeding season of 2016. Feeding time analysis was only done when the nestlings ... -
Video monitoring reveals sexual differences in prey selection and prey handling in western marsh harriers (Circus aeruginosus) in Norway
Hansen, Kim Daniel (Master thesis, 2017)A breeding population of marsh harriers (Circus aeruginosus) has established in SE Norway during the last decades, and the population is increasing. Yet, no study of the breeding ecology of this population has been conducted. ... -
Voles and climate in Norway: Is the abundance of herbivorous species inversely related to summer temperature?
Selås, Vidar; Framstad, Erik; Sonerud, Geir Andreas; Wegge, Per; Wiig, Øystein (Journal article; Peer reviewed, 2018)For several mammalian species, both population levels and distribution ranges are predicted to change due to changing habitat conditions caused by climate change. A general decrease in the amplitude of small rodent population ...