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Autor(en)
Christen, W.
Titel
(* = Kurzbeitrag)
Bestandsentwicklung von zehn Brutvogelarten in der Aareebene bei Solothurn von 1982 bis 2016.
Jahr
2017
Band
114
Seiten
25–40
Key words
(von 1994 bis 2006 vergeben)
Schlagwort_Inhalt
Bestandsentwicklung, Bestandstrend, Verbreitungsgebiet, Brutgebiet, Landwirtschaft, Buntbrache, Schutzmassnahmen
Schlagwort_Vogelart
(wissenschaftlich)
Coturnix coturnix, Ardea cinerea, Cuculus canorus, Luscinia megarhynchos, Saxicola rubicola, Sylvia communis, Oriolus oriolus, Lanius collurio, Corvus frugilegus, Emberiza calandra
Schlagwort_Vogelart
(deutsch)
Wachtel, Graureiher, Kuckuck, Nachtigall, Schwarzkehlchen, Dorngrasmücke, Pirol, Neuntöter, Saatkrähe, Grauammer
Schlagwort_Geographica
Schweiz, Solothurn, Bern, Aareeben
Sprache
deutsch
Artikeltyp
Abhandlung
Abstract
Population trends of ten breeding bird species in the plain of the Aare near Solothurn from 1982 to 2016. – In the 32-km2 plain of the Aare between Büren a.A. (canton of Berne) and Solothurn (canton of Solothurn), population sizes of the following 10 bird species were monitored during the breeding seasons 1982–2016: Common Quail, Grey Heron, Common Cuckoo, Common Nightingale, European Stonechat, Common Whitethroat, Eurasian Golden Oriole, Red-backed Shrike, Rook, and Corn Bunting. Population trends in the 35 years of the study differed among species. Population sizes clearly increased in Common Nightingale, European Stonechat, Red-backed Shrike, and Rook. Numbers of Grey Heron increased in the beginning of the study, reached a maximum in the middle of the nineties, and decreased slightly since then. Clear decreases were found in Common Whitethroat and Corn Bunting, and a slightly negative trend was found in the Eurasian Golden Oriole. No clear trend was observed in Common Quail and Common Cuckoo. The population trends in the plain of the Aare were compared with the Swiss Bird Index SBI®, which has been used since 1990 to calculate population indices for all breeding bird species in Switzerland. Numerous potential reasons for the fluctuations in the populations are to be found in the breeding grounds as well as in stopover sites and wintering areas. In the breeding ground, promoting wildflower fallows could support the populations of European Stonechat, Common Whitethroat, Red-backed Shrike, and Corn Bunting.
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