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Article
L. Tomialojc, Auteur ; T. Wesolowski, AuteurThe Bialowieza Forest (BF) is an extensive and relatively little changed forest complex on the Polish-Belarussian border. Data on the structure and diversity of its breeding avifauna have mostly been collected in primeval old-growth stands, pres[...]
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K. Pagenkopf, Auteur ; T. Wesolowski, AuteurWe expected to find a clearly manifested mate guarding behaviour in males of Sitta europaea as males of this socially monogamous species participate extensively in parental care. We recorded behaviour of nuthatches during one breeding season in [...]
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T. Wesolowski, Auteur
Article
T. Wesolowski, Auteur ; M. Stanska, AuteurAll studies of interactions between fleas and hole-nesting birds so far have been done in nestboxes. This study, which is the first study of flea infestation of nests of hole-nesters in natural holes, was carried out in the Bialowieza National P[...]
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T. Wesolowski, Auteur ; L. Tomialojc, AuteurData on nest success and brood productivity of three ground-nesting, three canopy-nesting and four hole-nesting (non-excavator) passerines were gathered in a primeval lowland temperate forest (Bialowieza National Park, E Poland). Natural holes w[...]
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T. Wesolowski, Auteur ; D. Czeszczewik, Auteur ; P. Rowinski, Auteur ; W. Walankiewicz, AuteurNest loss rates of four secondary hole-nesters - Pied (Ficedula hypoleuca) and Collared (Ficedula albicollis) Flycatchers, Marsh Tit (Parus palustris) and European Nuthatch (Sitta europaea) - due to soaking recorded during a long-term study in a[...]
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T. Wesolowski, AuteurIn contrast to other organisms with internal fertilization, males of the majority of birds do not possess a copulatory organ. Causes of this loss of phallus are not well understood. Copulations in birds are very short, indicating selection for f[...]
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T. Wesolowski, Auteur
Article
T. Wesolowski, Auteur ; P. Rowinski, AuteurWe looked for evidence of a cost of reproduction in the Marsh Tit Parus palustris living in the last fragments of primeval temperate forest (Bialowieza National Park, eastern Poland). Potential nest-holes were superabundant but the birds had to [...]
Article
T. Wesolowski, AuteurProducing young late in the season is very costly in Marsh Tits, therefore any means which allow late-laying females to compensate for an initial delay are highly advantageous. Any attempts to make up for the initial delay should result in short[...]
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T. Wesolowski, AuteurDans Ardea (86(1) 1998)Marsh Tits Parus palustris in Bialowieza National Park (E. Poland, 1985-97) were single brooded, laid their first eggs between 5 April and
