Resource Details

Regeneration pattern and size-class distribution of indigenous woody species in exotic plantation in Pugu forest reserve, Tanzania

Literature: Journal Articles Available at NO COST

Rocky, J. & Mligo, C. 2012, "Regeneration pattern and size-class distribution of indigenous woody species in exotic plantation in Pugu forest reserve, Tanzania", International Journal of Biodiversity and Conservation, vol. 4, nos. 1, pp. 1-14.

Contact Info

Mligo, C.,,


  • University of Dar es Salaam, Tanzania, Department of Zoology and Wildlife Conservation


Species Info

  • Abizia glaberriena
  • Acacia brevispica
  • Afzelia quanzensis
  • Albizia gummifera
  • Albizia petersiana
  • Carrissa edulis
  • Dichapetalum stuhlmannii
  • Grewia microcarpa
  • Grewia platyclada
  • Hymenaea verrucosa
  • Manilkara sulcata
  • Pteleopsis myrtifolia 
  • Xylotheca tetensis 
  • Eucalyptus maidenii (Exotic)
  • Pinus patula (Exotic)
  • Senna siamea (Exotic)


  • This study examines the natural regeneration of indigenous tree species in an exotic tree plantation adjacent to a natural forest in a coastal forest of Tanzania. 
  • Four dominant indigenous tree species were identified in the exotic plantation with diameter size classes between 10 to 35cm. There were fewer species in the Pugu natural forest compared to similar coastal forest types with similar habitat conditions in the region. This is attributed to the high exploitation in the Pugu forest reserve compared to the other. 
  • Similar to other studies in the region the high density of indigenous species in the Senna siamea stand coexisted with some indigenous species and not others. Eucalyptus maidenii highly fostered the regeneration of native species such as Pteleopsis myrtifolia and Afzelia quanzensis. In the plantations, the native species identified were different from those of the natural forest. According to the authors the regenerant species in the plantation originated from recent selectively exploited tree species from both natural forest and the plantation stands and or seedbank.
  • The authors assert that exotic species colonization was poor enabling native tree species to regenerate naturally and to outcompete them. 
  • They recommend that the exotic tree species fostered the regeneration of native species although some indigenous species may not have regenerated to coesxist with exotic trees regardless of soil seedbank. 

Geographical Region

  • East Africa
  • Country

  • Tanzania
  • This database is a work in progress, and we need your input to keep it up to date. Feel free to contact ELTI at to provide information on your own work as well as other projects and literature currently missing from the database.


    ELTI is a joint initiative of:
    Yale School of Forestry & Environmental Studies Smithsonian Tropical Research Institute