The Democratic Republic of the Congo alone possess about 181 species of ophidians belonging to 59 genera and 7 families. Kisangani city and surrounding area are a "hot spot" of several zoological groups already studied; while the biology and ecology of ophidians remain unknown in this ecoregion. From the perspective of dominance we got 0.1136 for all species with a high value in the species Boaedon olivaceus followed by the species such as Dipsadoboa viridis and Hapsidophrys lineatus while other remaining species: Atractaspis irregularis, Causus sp, Grayia ornata, Boulengerina annulata, Telothornis kirtlandii, Bitis nasicornis and Naja melanoleuca are less represented in our sample. The representativeness in the total number of individuals collected, the taxa, genera and families were respectively 25; 14; 13 and 4. The family of Colubridae is best represented with 65% of species followed by the family of Viperidae and Elapidae each respectively with 14% of species while that the family of Atractaspididae is less represented 7% of species. The Simpson index gives us 0.8864; the probability that two individuals from the sample are randomly of different species; Shannon Wiener index is 3.4831, which stipulates that the drill Basukwambula is very diversified in species; the equitability value is 0.2328. This index shows a statistically insignificant value; because some species of Ophidians captured in Basukwambula forest are represented by only one specimen in our collection.
A floristic and structural composition studies of Kponyo forest, a forest close to the hunting field of Bili Uélé, was carried out with the aim of knowing the variability of the forest types through the evaluation of the parameters such as abundance, taxa predominance, basal area, biodiversity indices and the mode of space distribution of the dominant species in each inspected site. The method of subplot made it possible to sample two hectares (8 pieces of 50 m X 50 m). On the whole, 636 individuals belonging to 173 species and 66 families were inventoried. The species Gilbertiodendron dewevrei abounds the hydromorph land forest while the species Garcinia epunctata abounds the firm land forest. The Fabaceae family dominates this florule. Basal area average is 28,14m2/ha. The analysis according to the K repley® function of Gilbertiodendron dewevrei and Garcinia epunctata shows a random distribution within the settlement.
Democratic Republic of the Congo is among the countries who attach great importance to the conservation and sustainable management of natural resources. The aim of this floristic study was to evaluate the plant diversity of the Rubi-télé hunting area for a good sustainable management. This area is located in the Bas Uele province, Territory of Buta and the Community of Monganzulu village Sukisa (N: 02 ° 19 '072 "E: 024 ° 58' 368'; altitude: 471m). This reserve has an area of 9080 km2.
All individuals with a diameter ≥ 10 cm were inventoried and measured 1.30 m above the grade. We opted for a targeted sampling of delineating the 50 m X 50 m plots (mixed forest) and where the Gilbertiodendron dewevrei (mono forest dominant) was abundant. The study conducted in the field hunting Rubi-Télé an area of 2ha led us census 452 individuals in the mixed forest divided into 79 species, 28 families; 267 individuals in the forest Gilbertiodendron dewevrei divided into 30 species, 14 families.
Basal area for forest Gilbertiodendron dewevrei is 32,3m2/ha and mixed forest as basal area 23m2/ha. Julbernadia seretii is more abundant with a rate of 11.95%, in the mixed forest. Family Fabaceae leads with 30.87%.
For Gilbertiodendron dewevrei forest species abounds its habitat, first with 46.44% of the family Fabaceae is leading with 64.12%, it appears that the mixed forest shows the scattering of the forest wealth specific Gilbertiodendron dewevrei because its diversity index values are low.
The present work carried out in Masako forest reserve, updates the data on regeneration of Gilbertiodendron dewevrei through its youthful (1 ≤ dbh < 10 cm). To carry out our study, twelve 50 m × 50 m plots were established on a 2100 m transect in G. dewevrei based mono-dominant forest. The aim in view was to see how is held the regeneration of this last through its youthful in the Masako forest reserve. We hypothesized that the youthful ones would develop under canopée in a uniform way in all the pieces. To this end, 1652 individuals grouped in five diameter classes : class 1 with 1364 individuals (83%), followed by class 2 with 241 individuals (15%), class 3 with 34 individuals (2%), class 4 with 9 individuals (1%) and then class 5 with 4 individuals (0.2%). This result shows that regeneration of G. dewevrei at youthful stage is not uniform, according to their heterogeneous distribution (Coefficient of variation: 63.5%). Individuals in classes 4 and 5 are less represented because they are exploited much by the local community for the building work.