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Mean surface roughness at territories with different establishment-time.

Mean surface roughness at territories with different establishment-time.

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Article
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The Collared Flycatcher (Ficedula albicollis) is one of a few insectivorous long distance migrants with a slightly positive population trend. In spring 2015 we examined habitat preferences of a population in the Donau-Auen National Park. Singing males were counted at randomly chosen points in six survey rounds. Additionally, possible breeding compe...

Contexts in source publication

Context 1
... probability for territories. Other important factors were the presence of Great Spotted Woodpeckers (negative effect), cavity availability (positive effect) and standing dead wood (negative effect). There was a tendency of earlier territory establishment at points with higher surface roughness compared to those with a more homogenous tree layer (Fig. 2). ...
Context 2
... clear relationship between food supply, distance to water bodies and habitat quality, as documented for other flycatcher species (IWATA et al, 2003), could not be found in this study. Canopy surface roughness as best predictor for Collared Flycatcher occurrence could be an indicator for the primevalness of forest stands and is mirroring the management history, respectively. ...