<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Studies were carried out in 2010 by mean of simplified version of the mapping method. The study area (395 ha) was located close to the city centre. It comprised a mosaic of urbanized habitats, with a clear dominance of green areas, such as parks (41.1 ha), gardens, cemeteries and tree clumps. A total of 48 breeding bird species were recorded in the whole study area. The most common (&lt;25 pairs/100 ha) were <italic>Passer domesticus, Passer montanus, Sturnus vulgaris, Parus caeruleus, Parus major, Apus apus</italic> and <italic>Columba livia.</italic> Numerous (7-15 pairs/100 ha) were also the following species: <italic>Columba palumbus, Turdus pilaris, Sylvia atricapilla, Serinus serinus, Turdus merula</italic> and <italic>Pica pica.</italic> Insectivorous birds were the most common birds constituting 63.3%, and granivorous -32.6% of all pairs recorded. Most birds nested in tree holes (39.3%), in/on buildings (30.2%) and in trees/shrubs (25.6%). Distribution of breeding pairs of 23 bird species was presented on maps. Population trends for 17 species were documented. Rapid increase in numbers of <italic>Turdus pilaris, Corvus cornix</italic> and <italic>Phoenicurus phoenicurus</italic> and decrease of <italic>Pica pica</italic> were recorded.</p></abstract>

Studies were carried out in 2010 by mean of simplified version of the mapping method. The study area (395 ha) was located close to the city centre. It comprised a mosaic of urbanized habitats, with a clear dominance of green areas, such as parks (41.1 ha), gardens, cemeteries and tree clumps. A total of 48 breeding bird species were recorded in the whole study area. The most common (<25 pairs/100 ha) were Passer domesticus, Passer montanus, Sturnus vulgaris, Parus caeruleus, Parus major, Apus apus and Columba livia. Numerous (7-15 pairs/100 ha) were also the following species: Columba palumbus, Turdus pilaris, Sylvia atricapilla, Serinus serinus, Turdus merula and Pica pica. Insectivorous birds were the most common birds constituting 63.3%, and granivorous -32.6% of all pairs recorded. Most birds nested in tree holes (39.3%), in/on buildings (30.2%) and in trees/shrubs (25.6%). Distribution of breeding pairs of 23 bird species was presented on maps. Population trends for 17 species were documented. Rapid increase in numbers of Turdus pilaris, Corvus cornix and Phoenicurus phoenicurus and decrease of Pica pica were recorded.

Population Densities of Birds Breeding in Urbanized Habitats in the Grabiszyn District in the City of Wrocław

Department of Vertebrate Ecology, Wrocław University of Environmental & Life Sciences, Kożuchowska 5b, 50-631 Wrocław

Acta Musei Silesiae, Scientiae Naturales

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Studies were carried out in 2010 by mean of simplified version of the mapping method. The study area (395 ha) was located close to the city centre. It...

Population Densities of Birds Breeding in Urbanized Habitats in the Grabiszyn District in the City of Wrocław

Published Online: Nov 20, 2014

Page range: -

DOI: https://doi.org/10.2478/cszma-2014-0014

Keywords
Lower Silesia, urban ecology, population densities, population trends

© 2014 Grzegorz Kopij

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Population Densities of Birds Breeding in Urbanized Habitats in the Grabiszyn District in the City of Wrocław

Published Online: Nov 20, 2014

Page range: -

DOI: https://doi.org/10.2478/cszma-2014-0014

KeywordsLower Silesia, urban ecology, population densities, population trends

© 2014 Grzegorz Kopij

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Lower Silesia, urban ecology, population densities, population trends