Use patch retention harvesting instead of clear-cutting
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Patch-retention harvesting, also called ‘clear-cutting with reserves’, entails retaining a certain percentage (typically 10%) of a harvested unit within discrete patches of mature and/or immature trees. It is hoped that primates will resettle and survive in these patches in the long-term. Clear-cut logging (i.e. the removal of all trees at the same time) is practiced on the remaining e.g. 90% of the harvesting unit. The spatial properties of the patches (i.e. size, shape and distance between patches) need to be considered as they are likely to play an important role for their effectiveness in ensuring the long-term survival of the displaced primate populations (Diamond 1975). This logging strategy has been applied mostly in the sub-boreal Spruce Bioclimatic zone.
Diamond J.M. (1975) The island dilemma: lessons of modern biogeographic studies for the design of natural reserves. Biological Conservation, 7, 129–146.