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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	150 years of Avifauna investigations in "Franconian Pond Area": Bird life in the time of A. J. Jaeckel (1822-1895) in comparison with today.
Auteurs :	Manfred Kraus, Auteur ; Werner Krauss, Auteur
Type de document :	Article
Dans :	Ornithologischer Anzeiger (42(3) Oktober 2003)
Article en page(s) :	161-212
Résumé :	150 years have passed since the beginning of the avifaunistic investigation by Andreas Johannes Jaeckel at the "Franconian Pond Area". For this reason the avifauna of the second half of the 19th century is being reconstructed and compared with the material from 1950 onwards. From 1850 to 1899 204 species are documented, of them 117 species are breeding birds. They are classed in 6 categories, 69 of these species have had to be assigned to a higher or lower category. They are being characterized according to their present status. Regarding the breeding birds the relation to higher or lower classification comes to 4:22 and the visitors to 32:11. The total balance of 36:33, therefore, is almost even. From 1900 to today 79 species have been newly documented, 67 visitors and 12 breeding birds. The status of all new breeding birds and the one new regular migratory bird has been characterized. Penduline Tit, Great Reed Warbler, Mute Swan, Black-necked Grebe, Marsh Warbler and Collared Dove have been newly recorded and have thus became regular breeding birds as is the case of further 11 former visitors. Of the 12 new breeding birds only 6 are regular. Capercaillie, Black Grouse, Crested Lark, Woodchat Shrike and Little Owl were regular breeding birds at the time of Jaeckel. They have now disappeared altogether. Further 16 species that were breeding regularly are breeding irregularly nowadays. The 2 species Hazel Grouse and Great Bustard were documented prior to 1850. During 1850 to 1899 there were 204 species. The 2 species Spotted Eagle and Little Bustard were known only from 1900 to 1949. From 1950 to 2002 77 species were newly recorded, 59 wild birds and 18 escapes from zoos i. e. neozoen. Altogether 285 species are recorded at the "Franconian Pond Area", 154 species thereof have been proved to be breeding.

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