标题：Contribution à la cartographie des potentialités mellifères de Haut-Jura : exemples de variations spatio-temporelles autour d'un rucher à Chaumont/NE
摘要：During 4 years, 200 melliferous species have been inventoried
and examined phenologically in an area of the Swiss
High Jura. On the basis of their spatio-temporal variations.
the author distinguishes five melliferous seasons with their
correspondmg resources. and makes a number of proposals
how to manage the melliferous landscape.
