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The effect of embryonic development on metal and calcium content in eggs and eggshells in a small passerine

Grzegorz Orłowski, Auteur ; Lucyna Hałupka, Auteur ; Przemysław Pokorny, Auteur ; Ewelina Klimczuk, Auteur ; Hanna Sztwiertnia, Auteur ; Wojciech Dobicki, Auteur

Dans Ibis (157(1) January 2015)

Published information relating to changes in the chemical element content of avian eggs caused by embryonic development is extremely scarce, although it may be crucial for understanding both the presence of anthropogenic pollutants as well as ph[...]

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Article

Geographical and habitat differences in concentrations of copper, zinc and arsenic in eggshells of the Rook Corvus frugilegus in Poland

Grzegorz Orlowski, Auteur ; Zbigniew Kasprzykowski, Auteur ; Wojciech Dobicki, Auteur ; Przemyslaw Pokorny, Auteur ; Ryszard Polechonski, Auteur

Dans Journal of Ornithology (151(2) APR 2010)

Levels of copper, zinc, and arsenic were analyzed in the Rook Corvus frugilegus eggshells from 43 breeding colonies located in different parts of Poland. The average [95% confidence interval (CI)] level of copper was found to be 8.13 (0.64-15.62[...]

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