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Animals of different phenotype differentially utilise dietary niche - the case of the Great Grey Shrike Lanius excubitor

M. Hromada, Auteur ; L. Kuczynski, Auteur ; A. Kristin, Auteur ; P. Tryjanowski, Auteur

Dans Ornis Fennica (80(2) 2003)

We tested the morphological trait utility in Great Grey Shrike Lanius excubitor. The food composition was used as an indicator of phenotype performance advantage in utilising of particular dietary niche. Mounts and accompanying data (measurement[...]

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Article

Should avian egg size increase as a result of global warming? A case study using the red-backed shrike (Lanius collurio)

P. Tryjanowski, Auteur ; T. H. Sparks, Auteur ; L. Kuczynski, Auteur ; S. Kuzniak, Auteur

Dans Journal of Ornithology (145(3) JUL 2004)

From some life-history traits, avian egg size can be postulated as potentially affected by climate change. In this paper, we present and discuss the potential effect of mean temperature in the breeding season on egg size of the red-backed shrike[...]

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