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Marti, J.

Die Habitatansprüche der Klappergrasmücke Sylvia curruca in den höheren Lagen des Kantons Glarus.

2008

105

345–352

Key words
(von 1994 bis 2006 vergeben)

Verbreitung, Höhenverbreitung, Bestandesdichte, Habitatwahl, Lebensraum, Waldgrenze, Forstwirtschaft, Alpbeweidung, Klimaerwärmung

Schlagwort_Vogelart
(wissenschaftlich)

Sylvia curruca, Sylvia borin

Schlagwort_Vogelart
(deutsch)

Klappergrasmücke, Gartengrasmücke

Schweiz, Glarus

deutsch

Abhandlung

Habitat characteristics of the Lesser Whitethroat Sylvia curruca in the mountainous area of the canton of Glarus, Switzerland. – In the years 2005–2007 104 territories of the Lesser Whitethroat were found in the mountainous area of the canton of Glarus. The Lesser Whitethroat had a preference for the areas between 1700 and 2000 m a.s.l. (mean 1766 m) near the timber line characterised by a mixture of herbs, shrubs and trees. Tree cover was 60 % on average and never exceeded 80 %. At least some conifers were present in each territory, probably used as nesting sites. The height of the trees never exceeded 5 m (mean 3.2 m). As the timber line is now in the process of climbing, the Lesser Whitethroat will probably gain new habitats due to tree growth at higher altitudes but will lose present habitats due to the closing of the forests.