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Figure
The bird trends reflect the period 1980-2002. The butterfly trends reflect the period 1972/73-1997/98. The names of the bird species taken into account are listed in the methodology for calculating the core set indicator on Species Diversity (CSI009).
For references, please go to https://www.eea.europa.eu/data-and-maps/figures/trends-in-birds-and-butterfly-populations-in-eu-25-decline or scan the QR code.
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