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Korner-Nievergelt, F., P. Korner-Nievergelt, E. Baader, L. Fischer, W. Schaffner & M. Kestenholz

Herbstlicher Tagzug auf der Beringungsstation Ulmethöchi im Jura: Veränderungen in den Fangzahlen über 40 Jahre (1966–2005).

2007

104

3–32

Key words
(von 1994 bis 2006 vergeben)

Vogelzug, Durchzügler, Beringung, Bestandesentwicklung, Sichtbeobachtungen, Fangzahlen

Schlagwort_Vogelart
(wissenschaftlich)

Accipiter nisus, Buteo buteo, Falco tinnunculus, Falco columbarius, Coturnix coturnix, Gallinago gallinago, Scolopax rusticola, Columba palumbus, Tyto alba, Glaucidium passerinum, Athene noctua, Strix aluco, Asio otus, Aegolius funereus, Alcedo atthis, Jynx torquilla, Picus canus, Picus viridis, Dryocopus martius, Dendrocopos major, Dendrocopos medius, Dendrocopos minor, Lullula arborea, Alauda arvensis, Riparia riparia, Hirundo rustica, Delichon urbicum, Anthus trivialis, Anthus pratensis, Anthus spinoletta, Motacilla flava, Motacilla cinerea, Motacilla alba, Cinclus cinclus, Troglodytes troglodytes, Prunella modularis, Erithacus rubecula, Luscinia svecica, Phoenicurus ochruros, Phoenicurus phoenicurus, Saxicola rubetra, Saxicola torquatus, Oenanthe oenanthe, Turdus torquatus, Turdus merula, Turdus pilaris, Turdus philomelos, Turdus iliacus, Turdus viscivorus, Locustella naevia, Acrocephalus scirpaceus, Hippolais icterina, Sylvia atricapilla, Sylvia borin, Sylvia curruca, Sylvia communis, Phylloscopus sibilatrix, Phylloscopus collybita, Phylloscopus trochilus, Regulus regulus, Regulus ignicapilla, Muscicapa striata, Ficedula hypoleuca, Aegithalos caudatus, Parus palustris, Parus montanus, Parus cristatus, Parus ater, Parus caeruleus, Parus major, Sitta europaea, Certhia familiaris, Certhia brachydactyla, Remiz pendulinus, Lanius collurio, Garrulus glandarius, Pica pica, Nucifraga caryocatactes, Sturnus vulgaris, Passer domesticus, Passer montanus, Fringilla coelebs, Fringilla montifringilla, Serinus serinus, Serinus citrinella, Carduelis chloris, Carduelis carduelis, Carduelis spinus, Carduelis cannabina, Carduelis cabaret, Loxia curvirostra, Pyrrhula pyrrhula, Coccothraustes coccothraustes, Emberiza citrinella, Emberiza cia, Emberiza schoeniclus, Emberiza calandra

Schlagwort_Vogelart
(deutsch)

Sperber, Mäusebussard, Turmfalke, Merlin, Wachtel, Bekassine, Waldschnepfe, Ringeltaube, Schleiereule, Sperlingskauz, Steinkauz, Waldkauz, Waldohreule, Raufusskauz, Eisvogel, Wendehals, Grauspecht, Grünspecht, Schwarzspecht, Buntspecht, Mittelspecht, Kleinspecht, Heidelerche, Feldlerche, Uferschwalbe, Rauchschwalbe, Mehlschwalbe, Baumpieper, Wiesenpieper, Bergpieper, Schafstelze, Bergstelze, Bachstelze, Wasseramsel, Zaunkönig, Heckenbraunelle, Rotkehlchen, Blaukehlchen, Hausrotschwanz, Gartenrotschwanz, Braunkehlchen, Schwarzkehlchen, Steinschmätzer, Ringdrossel, Amsel, Wacholderdrossel, Singdrossel, Rotdrossel, Misteldrossel, Feldschwirl, Teichrohrsänger, Gelbspötter, Mönchsgrasmücke, Gartengrasmücke, Klappergrasmücke, Dorngrasmücke, Waldlaubsänger, Zilpzalp, Fitis, Wintergoldhähnchen, Sommergoldhähnchen, Grauschnäpper, Trauerschnäpper, Schwanzmeise, Sumpfmeise, Weidenmeise, Haubenmeise, Tannenmeise, Blaumeise, Kohlmeise, Kleiber, Waldbaumläufer, Gartenbaumläufer, Beutelmeise, Neuntöter, Eichelhäher, Elster, Tannenhäher, Star, Haussperling, Feldsperling, Buchfink, Bergfink, Girlitz, Zitronengirlitz, Grünfink, Distelfink, Erlenzeisig, Hänfling, Alpenbirkenzeisig, Fichtenkreuzschnabel, Gimpel, Kernbeisser, Goldammer, Zippammer, Rohrammer, Grauammer

Schweiz, Basel-Landschaft, Ulmethöchi

deutsch

Abhandlung

Diurnal autumn migration at the ringing station Ulmethöchi in the Jura mountains: changes in the number of captures over 40 years (1966–2005). – Autumn migrants were caught at Ulmethöchi (Basle-Country, Switzerland) with constant netting effort since 1966. Additional systematic observations of free-flying migrating birds were conducted at the same place since 1988. Thus, the ringing station Ulmethöchi yields one of the longest running monitoring scheme of migrant birds in Central Europe. In this study, we analysed the long-term trends of the number of migrants for 46 common bird species. The numbers of migrants counted by the systematic observations correlated well with the number of birds caught in the nets. The ratio between observed and caught birds did not change over the years 1988–2005 for any species. Therefore, we assumed that the trappability did not change significantly over the years and the numbers of caught birds give an unbiased picture of the trends in the numbers of migrating birds. The total numbers caught in the nets did not change over the years 1966–2005. The average number of birds caught per day was 58.7 ± 30.6 (mean ± standard deviation). 10 (21.7 %) species showed a positive, 9 (19.6 %) species a negative trend, and 27 (58.7 %) species schowed no trend. Species with increasing numbers of migrants were primarily forest species, whereas species with decreasing numbers breed in farmland or human settlements. The trends of the numbers of migrants at Ulmethöchi correlated well with the trends of breeding populations in Europe for 20 species. Exceptions were Grey Wagtail and European Greenfinch. These species showed positive trends on their breeding grounds but decreasing numbers of migrants at Ulmethöchi. This could indicate a change in migratory behaviour towards a higher proportion of resident individuals within the population. In many farmland species the number of migrants at Ulmethöchi broke down in the early 1970s, i.e. Common Redstart, Eurasian Tree Sparrow, Common Linnet and Yellowhammer. Although recent publications suggest a positive trend in breeding populations for these species, the number of migrants at Ulmethöchi is still far below the numbers before the collapse.