Fagus sylvatica from about north Suffolk across to Cardigan. Oak are the dominant forest trees north of this line. One of the most beautiful European beech forests called Sonian Forest ("Forêt de Soignes/Zoniënwoud") is found in the southeast of Brussels, Belgium. Beech is a dominant tree species in France and constitutes about 10% of French forests. The largest virgin forests made of beech trees are Uholka-Shyrokyi Luh () in Ukraine and Izvoarele Nerei ( in one forest body) in Semenic-Cheile Carașului National Park, Romania. These habitats are home of Europe's largest predators (the brown bear, the grey wolf and the lynx). Many
Parornix fagivora continues living freely under a folded leaf margin or leaf tip. Parornix fagivora Parornix fagivora is a moth of the Gracillariidae family. It is found from Sweden to the Pyrenees, Italy and Albania and from Great Britain to southern Russia. The wingspan is 11–14 mm. The larvae feed on "Fagus sylvatica", including subspecies "Fagus sylvatica orientalis". They mine the leaves of their host plant. The mine starts as a small lower-surface epidermal corridor with reddish brown frass. Later, it becomes a small rectangular full depth blotch with black frass. The larva deposits only little silk in the mine, that remains