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Floristic Survey and Wild Oilseed Plants Frequency in Lwiro and Idjwi Island Ecosystems in Albertine Rift
Research article
  

Floristic Survey and Wild Oilseed Plants Frequency in Lwiro and Idjwi Island Ecosystems in Albertine Rift


M. Kazadi, C. Kusamba, i. M. Mwanga, A. Matabaro, K.N. Ngbolua, P. T. Mpiana

1Laboratoire de Phytochimie, Section de Botanique, Département de Biologie, CRSN/Lwiro, D.S. Bukavu, RD Congo
2Laboratoire d’Herpétologie, Section de Zoologie, Département de Biologie, CRSN/Lwiro, D.S. Bukavu, RD Congo
3Laboratoire de Systématique et Taxonomie Végétale, Section de Botanique, Département de Biologie, CRSN/Lwiro, D.S. Bukavu, RD Congo
4Faculté des Sciences B.P. 190, Université de Kinshasa, Kinshasa XI, D.R. Congo.


Corresponding author :

P. T. Mpiana,
+243818116019,
Email:

Received: February 14, 2015,   Accepted: March 31, 2015,   Published:


Abstract:

This study describes the floristic diversity and wild oilseed plants frequency of Lwiro and Idjwi Island ecosystems in DR Congolese Albertine Rift area. Total of 1689 plant of DBH ≥ 10 cm were recorded in plots and along rivers and streams. 92 plant species were inventoried with species repetition in different prospected stations: 36 species were identified at Lwiro station, 33 species at Washiha station and 43 species in Nyamusisi station. There were 8 species found at the same time at Lwiro and Idjwi Island ecosystems. The trees morphological type is the most abundant in the two stations (Lwiro and Nyamusisi) than in Washiha and more in Nyamusisi. The dominant families are Euphorbiaceae and Fabaceae. In total of 1689 individuals in all three sites, 292 are oilseed plants shared out 14 individuals i.e 3.78% at Lwiro station, 99 individuals i.e 15.59% in Washiha station and 179 individuals i.e 26.17% in Nyamusisi station. Nyamusisi station is very rich in wild oilseed-bearing plants with all dominant trees species reported as oilseed plants. The high proportion of trees morphological types in prospected stations brings vulnerability to these ecosystems due to high intensity of human disturbance attracted by timber and charcoal extraction. Chemical evaluation of oils from some selected wild oilseed can establish these plants as source oil for various uses. The trees species identified as sources of oil will be proposed for domestication and at the same time be conserved which is good for the environment.


Keywords: Oilseed plant; Lwiro station; Washiha station; Nyamusisi station; Idjwi Island; Albertine Rift.


Citation:

Mpiana P.T. et al.. (2015). Floristic Survey and Wild Oilseed Plants Frequency in Lwiro and Idjwi Island Ecosystems in Albertine Rift. J. of Advanced Botany and Zoology, V2I4. DOI: 10.15297/JABZ.V2I4.03


      
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      Journal of Advanced Botany and Zoology