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Titre :	Breeding bird community of a large cemetery in a Central European city in 1969 and 40 years later
Auteurs :	Grzegorz Kopij, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (135(2) 2014)
Article en page(s) :	67-74
Résumé :	In a large (52.5 ha) cemetery situated in the Odra river valley on the outskirt of the city of Wroclaw, breeding birds were counted by means of territory mapping in 1968-69 and in 2008. The cemetery represents a mixed old forest, with highly modified ground and undergrowth layer. The average age of trees was 50-60 years in 1968-69 and 80-90 years in 2008. However, in 1968-69 the undergrowth was better developed than in 2008. In 2008, Starling and Tree Sparrow were eudominant, comprising together 38.5% of the breeding bird community. Wood Pigeon, Blue Tit, Serin and Chaffinch were classified as dominant (together 23%). For 29 out of 46 bird species recorded in both seasons, marked changes in numbers were recorded. Significantly higher population densities of Robin, Chiffchaff, Willow Warbler, Marsh Tit, Marsh Warbler, Garden Warbler, Blackcap and Wren in 1968-69 compared to 40 years later may be linked to changes in the cemetery management. Declining numbers in species such as Blackbird, Song Thrush, Jay, Chiffchaff, Turtle Dove and Yellowhammer and increases in species such as Serin, Hooded Crow and Goldfinch from 1968 to 2008 are in line with tendencies recorded also in other habitats in the city of Wroclaw and other Central European cities. In comparison with the breeding bird communities of cities and particular cemeteries in Western Europe, the occurrence of Pied Flycatcher, Icterine Warbler, Willow Warbler and Serin is of special interest. These species have virtually disappeared from urbanized habitats in Western Europe, but in the study area (and in other Silesian cities) their numbers remained stable (Icterine Warbler, Willow Warbler) or even increased (Serin, Pied Flycatcher).

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