Grassland butterflies — population index (1990 = 100)
For this graph data for grassland butterfly species from nine countries were used: Ukraine (Transcarpathia only) since 1983 (only for Erynnis tages); Pflalz region (Germany) since 1989 (only for Maculinea nausithous); The Netherlands since 1990; Flanders (Belgium) since 1991; Catalunya (Spain) since 1994; Aargau (Switzerland) since 1998; Finland since 1999; Nordrhein Westfalen (Germany) since 2001; Doubs and Dordogne (France) since 2001.
For references, please go to www.eea.europa.eu/soer or scan the QR code.
This briefing is part of the EEA's report The European Environment - State and Outlook 2015. The EEA is an official agency of the EU, tasked with providing information on Europe’s environment.
PDF generated on 31 Jan 2015, 08:09 PM