Regeneration, density and size class distribution of tree species used for drum making in central Uganda

A study was carried out between 1999 and 2001 in Degeya, Lufuka and Mpanga forests in central Uganda to determine the regeneration, density and size class distribution of trees used for making drums. Thirty sample plots measuring 20 · 20 m were established at 250 m intervals along transects laid in the northeast direction across swamps, mid-slopes and hilltops. Diameter at breast height (DBH) of trees and number and species of seedlings, saplings and poles of six tree species were determined. The tree species were: Antiaris toxicaria, Erythrina excelsa, Ficus mucuso, Ficus exasperata, Funtumia africana and Polyscias fulva. Antiaris toxicaria was the most abundant and P. fulva was the least abundant in the forests. The intensity of use and concentration on a limited number of tree species have resulted in localized exploitation with potential knock-on effects on the forests' health. On-farm tree planting by local communities should be encouraged to supply logs for making drums and reduce pressure on the forests.