Nest Predation Processes and Farmland Birds: Habitat Selection and Population Dynamics of Predators and Prey
"In this thesis, I investigated whether omnivorous avian generalists known to depredate nests of passerine birds, mainly the magpie (Pica pica) and the hooded crow (Corvus corone cornix), affected breeding habitat selection and population dynamics of one of their prey species, the red-backed shrike (Lanius collurio) in a Swedish farmland landscape (c. 94 km2). The studies were performed between 1997 and 2003"--Abstr. p.
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Results and discussion
The link between population dynamics of predators and prey
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analyses Andrén Animal Ecology artiﬁcial nest experiment artiﬁcial nests backed shrikes background levels behaviour Birkhead breeding habitat selection breeding red-backed shrikes breeding success British Ecological Society closest nest Conservation Biology corvid nest corvid species Cramp and Perrins daily nest mortality deciduous decreased density-dependent predation depredated distance to closest effects farmland birds ﬁeld ﬁrst foraging forest functional response generalist predators grasslands habitat preferences hooded crow human settlements interactions jackdaw junipers kmz-squares landscape types logistic regression magpie nest magpie Pica pica magpie territories magpies and hooded natural nests nest density nest predation risk nests located Oecologia Palearctic passerine Perrins CM plasticine egg plots population density population dynamics predator-prey prey species real nests real red-backed shrike red-backed shrike nests red-backed shrike territory red-backed shrikes Lanius reproductive success search image season semi-natural grasslands shrikes Lanius collurio shrub nests signiﬁcant signiﬁcantly sloe Soderstrom spatial dynamics study area suggest variables Wittem