Artikel-Suche

Martinez, N., T. Roth, V. Moser, G. Oesterhelt, B. Pfarr Gambke, P. Richterich, T. B. Tschopp, M. Spiess & S. Birrer

Bestandsentwicklung von Brutvögeln in der Reinacher Ebene (Kanton Basel-Landschaft) von 1997 bis 2016.

2017

114

257 – 274

Key words
(von 1994 bis 2006 vergeben)

Bestandsentwicklung, Bestandstrend, Verbreitungsgebiet, Brutgebiet, Landwirtschaft, Buntbrache, Schutzmassnahmen

Schlagwort_Vogelart
(wissenschaftlich)

Carduelis cannabina, Sylvia communis, Alauda arvensis, Phoenicurus phoenicurus, Emberiza citrinella, Picus canus, Picus viridis, Columba oenas, Dendrocopos minor, Cuculus canorus, Lanius collurio, Hippolais polyglotta, Saxicola rubicola, Acrocephalus palustris, Acrocephalus scirpaceus, Falco tinnunculus, Streptopelia turtur, Coturnix coturnix, Crex crex, Jynx torquilla, Emberiza cirlus

Schlagwort_Vogelart
(deutsch)

Bluthänfling, Dorngrasmücke, Feldlerche, Gartenrotschwanz, Goldammer, Grauspecht, Grünspecht, Hohltaube, Kleinspecht, Kuckuck, Neuntöter, Orpheusspötter, Schwarzkehlchen, Sumpfrohrsänger, Teichrohrsänger, Turmfalke, Turteltaube, Wachtel, Wachtelkönig, Wendehals, Zaunammer

Reinacher Ebene, Basel-Landschaft, Schweiz

deutsch

Abhandlung

Population trends of breeding birds in the agricultural area of Reinach (canton of Basel-Landschaft) from 1997 to 2016. – We investigated the long-term impact of ecological compensation areas on the populations of breeding birds in an agricultural area covering 5.5 km2 between Aesch, Ettingen, Reinach and Therwil in the canton of Basel-Landschaft, where annual bird mapping has been carried out since 1997. The trends observed in this area largely corresponded to the nationwide trends for Switzerland, with the exception of the following species: The Common Redstart Phoenicurus phoenicurus population considerably decreased in the study area, whereas the nationwide trend seems to be slightly positive. The Grey-headed Woodpecker Picus canus population decreased, and there is no clear nationwide trend. The Eurasian Kestrel Falco tinnunculus population remained constant, but considerably increased in Switzerland. The Yellowhammer Emberiza citrinella increased, but not in the whole of Switzerland, and the Red-backed Shrike Lanius collurio increased, but decreased in Switzerland. For Yellowhammer, Red-backed Shrike and European Stonechat Saxicola rubicola we found a clear positive relationship between annual number of territories and total area of wildflower strips in the respective years. Our results show that the system of ecological compensation areas can lead to population increases of specialized farmland birds, provided that ecological compensation areas are chosen to benefit the particular target species. In our study area, wildflower strips had clear positive impacts. To create suitable conditions for as many farmland bird species as possible, wildflower strips should have several age stages and high structural diversity. Some wildflower strips should be maintained during a longer period than prescribed by law. In the study area, we found a strong decrease in bird species inhabiting orchards. Although the loss of high-stem fruit trees slowed down due to economical incentives, orchards have obviously lost part of their former habitat quality.