Ecological characterization of tree species for guiding forest management decisions in seasonally dry forests in Lomerio, Bolivia

When the goal of natural forest management is to maintain the biodiversity and ecological integrity of the forest while harvesting timber, the silvicu ltural systems employed must promote timber production and reduce negative impacts on non-timber resources. To foster development of such a system in a seasonally dry tropical forest in Lomerio, Bolivia, we classified tree sp ecies according to their relative timber value, importance as food for vert ebrate frugivores, and vulnerability to population declines when subjected to logging. We used this classification to identify a management system app ropriate for the commercial species and to evaluate the compatibility of th e system with the regeneration requirements of tree species that produce im portant food for mammalian wildlife. About half of the tree species in the site are commercially valuable for their timber and a similar proportion ar e considered of value as food for wildlife. A tree species rating for vulne rability to disturbance appeared to be independent of both timber and wildl ife values. A silvicultural system that includes even-aged groups of trees within an uneven-aged matrix appears more suitable to the multiple goals of management in this forest than either an even-aged or uneven-aged (single tree selection) management system. (C) 1999 Elsevier Science B.V. All right s reserved.