This study looks at the presence of common ragweed seeds in bird food in Luxembourg in 2012 and compares the results with an earlier study conducted in 2007. The study has been conducted by Christian Ries, Yan Steil and Patrick Thommes at the Department of Ecology in the National Museum of Natural History in Luxembourg,

The poster was presented on March 16th 2013 at the “XXXe réunion annuelle des collaborateurs scientifiques du Musée national d’histoire naturelle Luxembourg”.

→ Download the poster in pdf format (1.5 MB)