Eidgenössische Forschungsanstalt für Wald, Schnee und Landschaft, CH

The starting point of the present study is the fact that the quality of biotopes in Switzerland that are nationally protected is deteriorating and some are also shrinking in size. There are nearly 6000 biotopes in Switzerland, covering about 2% of the country's surface area. They belong to five categories: raised bogs, fens, floodplains, dry meadows and pastures, and spawning areas for amphibians.