The present study seeks to evaluate the abundance and the distribution of Aframomum melegueta, Aframomum citratum and Garcinia lucida, and to investigate the different harvesting practices and their impact on the population structure. The three species produce frequently used and commercialised NTFP (bark and fruits) in Southern Cameroon. The study shows that Aframomum melegueta is commonly cultivated in cocoa plantation. Aframomum citratum forms dense clumps in fallow lands and abandoned logging tracks. The harvesting of their fruits has a negligible effect on the population structure of these two species, due to their propagation by rhizome and seeds. Garcinia lucida is a small dioecious understorey tree of undisturbed forests, growing on steep slopes at an altitude of at least 500 m. The species occurs in high-density stands with more than 58 adult stems per ha, over areas of 2 to 3 km². The bark and the seed are used for palm wine production and medicinal purposes. The harvesting of bark is done on standtrees using a stick or a machete. Another technique, although less frequently used, consists of felling the tree at 1 m height before stripping. Bark is frequently stripped all around the stem, resulting in the death of the tree and a high mortality in the population. Then an improved management strategies is essential to guarantee a continual supply of products. Ongoing research focuses on the determination of optimal harvesting levels and techniques and estimating a sustainable level of resource extraction.