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Background  Understanding the variation in distribution and abundance of non-timber forest products (NTFP) species is a crucial step in achieving their conservation and sustainable use. At the northern periphery of the Boumba-Bek National Park in Southeast Cameroon, little is known about which habitat type contain the highest abundance of NTFP species. In this study, we assessed habitat diversity and variation in the abundance of eight priority NTFP species comprising:  Afrostyrax lepidophyllus, Baillonella toxisperma ,  Irvingia gabonensis, Panda oleosa, Pentaclethra macrophylla ,  Ricinodendron heudelotii ,  Scorodophloeus zenkeri  and  Tetrapleura tetraptera . The inventory was done along 16 linear transects of 5000 m × 20 m, and all the individuals, from juveniles (DBH < 5 cm) to mature trees (DBH > 5 cm) of the eight NTFPs were recorded. Habitat types were characterized along transects following basic forest classification system used in ecology and then measured.    Results  In total, 13 different habitat types were identified with young secondary forests and periodically flooded forests representing 32.70% and 26.31% respectively. The least represented habitat was young fallows with  Chromolaena odorata  (0.08%). Seven NTFPs ( A. lepidophyllus ,  B. toxisperma ,  I. gabonensis ,  P. oleosa ,  P. macrophylla ,  R. heudelotii  and  T. tetraptera ) were predominantly represented in young secondary forests whereas  S. zenkeri  was more abundant in young Marantaceae secondary forests. The different types of young secondary forests identified seem to be favourable for the growth of the eight NTFPs.    Conclusions  This study demonstrated that habitat fragmentation driven by human activities such as industrial logging and shifting cultivation destroy the forest ecosystems and has a strong influence on the sustainability of the major NTFPs in the locality.    Electronic supplementary material  The online version of this article (10.1186/s12898-019-0219-y) contains supplementary material, which is available to authorized users.

bmc ecology

Using transect sampling to determine the distribution of some key non-timber forest products across habitat types near Boumba-Bek National Park, South-east Cameroon