Karatsori's study provides an in-depth analysis of pollen remains recovered from the archaeological sites of Caverna delle Fate, Arma delle Manie (Finale Ligure) and San Francesco (San Remo) of the Italian Liguria. The aim is to identify changes in the vegetative landscape and climate during the occupation of these sites by Neanderthals and to assess the impact, if any, on the environment by early man. French text with abstracts in English, Italian and Greek.