ecology FOREST SCIENCE PROGRAM Estimates of productive capacity are difficult to obtain from many forest types, especially very old and very young stands. To meet this need, Forest Science Program researchers developed relationships between site index and ecological site information for the province in the Site IndexBiogeoclimatic Ecosystem Classification (SIBEC) project. The new approach of linking SIBEC estimates of productivity with ecosystem mapping provides timber supply analysts with tools for more accurate timber supply forecasts. Contacts: Victoria: Shirley Mah 250 356-2180 Victoria: Del Meidinger 250 387-6688 Victoria: Gordon Nigh 250 387-3093 Or contact an ecologist in one of our six regional offices. Ministry of Forests Forest Science Program