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Recent changes in distribution of dragonflies in Switzerland (Odonata) Naturalis
Gonseth, Y.; Monnerat, C..
Recent changes in distribution of dragonflies in Switzerland (Odonata) In 1998 the Swiss Centre for the Cartography of Fauna (CSCF) initiated ‘Odonata 2000’. This project aimed at testing a method for periodical reassessment of Red Lists in Switzerland. The study was carried out on Odonata and consisted of the resampling of known localities of threatened species and the sampling of new localities. Based on the number of sites where a given species has been found in the periods 1970-1998 and 1999-2000, trends were calculated for each species. The results show that since 1994 three species have disappeared from Switzerland, nine species have declined, two species have increased and 64 species have remained stable. Crocothemis erythraea, Lestes virens,...
Tipo: Article in monograph or in proceedings Palavras-chave: Odonata; Switzerland; Faunistics; Red list; Conservation; Trends; 42.75.
Ano: 2003 URL:
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