2012
DOI: 10.5735/086.049.0505
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Selective Predation of Tawny Owls (Strix aluco) on Yellow-Necked Mice (Apodemus flavicollis) and Bank Voles (Myodes glareolus)

Abstract: Differential predation on certain classes of individuals within prey populations might make owls strong selective agents on their prey. We investigated selective predation of tawny owls (Strix aluco) on yellow-necked mice (Apodemus flavicollis, A.f.) and bank voles (Myodes glareolus, M.g.) for two years by comparing prey from owl nests with live-trapped individuals. The owls killed significantly more male M.g. (73%) than females, but not more than expected from traps (57%). For A.f., owls selected adults in fa… Show more

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Cited by 6 publications
(6 citation statements)
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“…The three species are all common prey for the same set of predators (e.g. Sidorovich et al 2010;Sunde et al 2012), which makes our study system particularly suited to our scope, as it allows us to focus on competitive effects reducing the confounding effect of Landscape Ecol predation. We emphasise that our model system includes all the species that compose the community of forest-and ground-dwelling rodents.…”
Section: Study Speciesmentioning
confidence: 99%
“…The three species are all common prey for the same set of predators (e.g. Sidorovich et al 2010;Sunde et al 2012), which makes our study system particularly suited to our scope, as it allows us to focus on competitive effects reducing the confounding effect of Landscape Ecol predation. We emphasise that our model system includes all the species that compose the community of forest-and ground-dwelling rodents.…”
Section: Study Speciesmentioning
confidence: 99%
“…Females in the high fat treatment revealed a more distinct response to the predation risk than males. Considering that larger animals are more susceptible to predation (Sunde et al ., 2012), these observations suggest treatment enhanced the protective effect against predation risk by controlling weight gain.…”
Section: Discussionmentioning
confidence: 86%
“…Annual predation rates could account for nearly all mortality, as found by Erlinge et al (1983). (c) Adult and male voles were overrepresented in the diet of the eagle owl, but the hypothesis that those eaten were of lower mass and hence most likely in poorer condition as found by Melis et al (2011), was not supported (sensu Sunde et al 2012). The lower proportion of males among adults than among juveniles may have resulted from higher mortality rates among males.…”
Section: Discussionmentioning
confidence: 92%