The Bohemian Forest () mountain range is covered by the most extensive forest in Central Europe, whose natural composition was, however, changed and today spruce plantations prevail in most of the area. In many places non-native spruce varieties were planted. These are not well adapted to the harsh local climate and are therefore susceptible to a range of elements, such as strong winds (e.g. in the 1980s or recently at the beginning of 2007) and bark beetle (Ips typographus). Numerous large plateaux with raised peat bogs, glacial lakes and remnants of primeval forests (e.g. Boubín) complete a mosaic of habitats which are little disturbed by human settlements as most of the predominantly German-speaking inhabitants were expelled after World War II, and the area became a part of the deserted zone along the Eastern Bloc border. Since the 1970s there has existed a stable population of lynxes.