@misc{Tomiałojć_Ludwik_(1939–_)_An_2000,
 author={Tomiałojć, Ludwik (1939– )},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 editor={Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={2000},
 language={eng},
 language={pol},
 abstract={In spite of environmental uniformity of the European Plains, a conspicuous east-west gradient in the woodland avifauna and breeding bird community composition has been revealed. The species richness in the western woodland avifauna is lower by 32-36% than in the respective eastern samples (n = 120-127 species). Apart from being poorer in species, western communities tend to contain a higher proportion of species which develop dense populations. These features may result from past - mostly postglacial - natural events, from a secondary gradient in the intensity of human impact or from both of them. The data at hand provide evidence for a strong prevalence of the second factor. In view of the mostly anthropogenic character of the differences described, many west-European data can hardly be used as models of the natural patterns in studies of breeding bird ecology. New continent-wide comparative research is necessary to better control for anthropogenic bias in field data. For valid future pan-continental comparisons of bird communities a few large patches of near-pristine woodland should be preserved in the East, as well as restored in the West. Bird ecology studies need also a better co-operation with the archaeozoological and historical research to take into consideration past conditions which could also have influenced the present-day life patterns of European birds.},
 type={Text},
 title={An East-West gradient in the breeding distribution and species richness of the European woodland avifauna},
 URL={http://rcin.org.pl/miiz/Content/45238/PDF/WA058_61257_P257-T35_Acta-Ornith-Nr-1-1.pdf},
 volume={35},
 number={1},
 journal={Acta Ornithologica},
 publisher={Muzeum i Instytut Zoologii PAN},
 keywords={forest birds, Europe, congresses, species richness, distribution, anthropogenic changes, E-W gradient, birds, Aves},
}