Browsing Master's theses (INA) by Author "Steen, Ronny"
Now showing items 1-13 of 13
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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 activity and prey handling in the tawny owl (Strix aluco), as revealed by video monitoring of prey deliveries at the nest
Sand, Caroline (Master thesis, 2016-09-02)Prey deliveries and prey handling at three nests of the tawny owl (Strix aluco) in Akershus county in Norway were video monitored during the nesting period. In total, 712 prey items were recorded, and 619 of these were ... -
Effects of a fluctuating climate on the body condition of Atlantic Puffins Fratercula Arctica at Røst, Norway
Østvik, Andrea Nygård (Master thesis, 2017)The Atlantic puffin fratercula arctica population is declining in the North Sea- and the Norwegian Sea region. Puffin colonies located in the Røst Archipelago at the outermost tip of the Lofoten Islands, experienced almost ... -
Factors affecting hedgehog (Erinaceus europaeus) : presence in residential areas in Southern Norway assessed by a questionnaire survey
Tysnes, Tanya Marlene (Master thesis, 2016-09-02)The European hedgehog (Erinaceus europaeus) is a nocturnal small-sized mammal, 25-40cm, which is only active, from April to September. The purpose of this study was to investigate the various factors that may affect a ... -
Habitat selection and prey choice in the house cat (Felis silvestris catus)
Barmoen, Magnus (Master thesis, 2016-11-22)The domestic cat’s effect on wildlife, especially as a predator on birds, has been increasingly debated in later years. Most studies that examine predation by cats have recorded home-brought prey or analyzed stomach contents ... -
Habitat use and habitat-specific behaviour of breeding female Eurasian kestrels (Falco tinnunculus) in a peak vole year in the boreal forest
Larsen, Cathrine Sussane Torjussen (Master thesis, 2012-09-14)I used radio telemetry to study the habitat use and habitat-specific behaviour of six female Eurasian kestrels (Falco tinnunculus). The field work was conducted in Trysil municipality, south eastern Norway, during the ... -
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. ... -
Monitoring Daily Activity and Parental Food Provisioning in the Atlantic Puffin (Fratercula arctica) by the Use of Camera Traps
Hornset, Kristin (Master thesis, 2017)Seabirds are top predators in the marine environment, and because seabird diet may reflect fish availability, diet may function as an indicator of fish stocks and ecosystem status. Seabird diet is traditionally studied in ... -
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 ... -
Prey delivery and handling at the nest in ospreys (Pandion haliaetus) : diel patterns and potential family conflicts
Bjørgeengen, Silje (Master thesis, 2016-09-02)The prey items delivered at four osprey (Pandion haliaetus) nests in Østfold county, Norway, and the handling of these, were recorded on video during the nestling season in June-August of 2015. A total of 510 prey items ... -
Prey handling by a generalist predator, the golden eagle (Aquila chrysaetos)
Grønsdal, Espen (Master thesis, 2012-11-08)Although the golden eagle (Aquila chrysaetos) is a well-studied raptor, there is a lack of studies on its prey handling-behaviour, which is important for understanding its prey selection. I extracted data on four individuals ... -
Utbredelse og habitatvalg hos piggsvin (Erinaceus europaeus) i Ås kommune : hva påvirker forekomsten av piggsvin ved bebyggelse?
Gulliksen, Ingrid E. (Master thesis, 2016-08-31)Piggsvin (Erinaceus europaeus) er et lite nattaktivt pattedyr som trives i kulturlandskap, og i urbane og landlige områder. Det kan leve nær mennesker og blir ofte sett i hager og parker i byer og tettsteder. I tettsteder ... -
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 ...