EU Grassland Butterfly Index 1991-2024 Technical report
Chris A.M. van Swaay, Reto Schmucki, David B. Roy, Emily B. Dennis et autres
Executive Summary Butterflies have been systematically monitored in Europe for several decades using standard protocols that are now adopted in over 30 countries. Butterflies are ideal biological indicators: they are well-documented, measurable, sensitive to environmental change, occur in a wide range of …
gb, nl, bg, se, in, at, dk, it, es, ad, ch, fr, be, cz, no, de, cn, fi, gr, lu, pt, bd, us, cy, ca, hr, pl, hu, ee, lt (code pays fourni par la source)