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Documents disponibles écrits par cet auteur (6)
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Article
Jan O. Engler, Auteur ; David Roderus, Auteur ; Ortwin Elle, Auteur ; A. Hochkirch, AuteurInvestigating the extrinsic and intrinsic factors that shape species distributions is one of the central goals of biogeography. For expansive range edges in particular, the extrinsic drivers such as climate of biotic interactions are well mentio[...]
Article
Ortwin Elle, AuteurThis practically oriented introduction deals with potentialities and limitations of the use of multivariate statistics in field ornithology. Principal Component Analysis, Discriminant Analysis and Cluster Analysis belong to the most important mu[...]
Article
Ortwin Elle, AuteurThe slope of a location is an important factor in the habitat selection of the Skylark that modifies the effect of other habitat factors. Over a period of two years the influence of slope was quantitatively analysed on two farmland study plots i[...]
Article
Ortwin Elle, AuteurThis study deals with interspecific territoriality of Blackcap and Garden Warbler on a 45 ha study plot of syntopic occurrence, situated in a wood-meadow ecotone. Little mutual spatial overlap of the bird territories, along with similar habitat [...]
Article
Ortwin Elle, AuteurThis study deals with interspecific territoriality of Blackcap and Garden Warbler on a 45 ha study plot of syntopic occurrence, situated in a wood-meadow ecotone. Little mutual spatial overlap of the bird territories, along with similar habitat [...]
Article
Jan O. Engler, Auteur ; Thomas Sacher, Auteur ; Ortwin Elle, Auteur ; Timothy Coppack, Auteur ; Franz Bairlein, AuteurNatal dispersal has major consequences for the dynamics and genetic structure of populations. Female-biased natal dispersal, otherwise the norm in birds, is overridden when the place to move is limited, as on isolated islands. This effect was co[...]
