Country study Burkina Faso
|Virus Categories||Parasite viruses of vertebrates and others||Parasite viruses of plants||Parasite viruses of invertebrates||Parasite viruses of bacteria||Total|
Source : TRAORE A, 1997
This group of micro-organisms includes fungi, yeasts and moulds. According to TRAORE A., 1997, there are 113 genera of fungi and moulds divided into 18 families.
Bacteria are metabolically very active despite their small size. They play a remarkable role in the bio-fertilisation, bio-energy and bio-protection reactions of the environment. For this reason, it is important to provide as detailed as possible taxonomic classification for them. On the basis of the structure of their wall or membrane, bacteria are classified into four main groups:
The summary of their taxonomic inventory is presented in the table below:
Table 7: Family and genera number according to recorded bacteria
|Group of bacteria||Gracilicutes or gram-negative bacteria||Firmicutes or gram-positive bacteria||Ternicutes or bacteria without wall||Mendosicutes or bacteria with a very variable composition wall||Total|
Source: TRAORE A., 1997
Insects comprise the largest numbers of species in the animal kingdom. However, the situation of knowledge in Burkina Faso of insect diversity is relatively weak as compared with their population. The entomological fauna of Burkina Faso is still not well known. For out of an estimate of 30 000 species, only 1515 species have been recorded in known documents of reference collections. Species of insects from some orders such as Hemenopterans have not yet been the object of an inventory (e.g.; bees, wasps). In addition, the geographical distribution of the various species has not yet been made.
The following taxonomic caption of Table 8 shows the quantitative situation of the knowledge of recognised entomological fauna in Burkina Faso.
Table 8: Quantitative situation of recognised entomological fauna in Burkina Faso
Source: OUEDRAOGO P, 1996, TRAORE C. A. et ZIGANI S. N., 1996.
This sub-chapter deals purely with aquatic animals (except insects), those dependent on aquatic milieu (batrachians, reptiles, birds), terrestrial wild fauna and domestic fauna.
The taxonomic inventories made on aquatic fauna results in the figures shown in table 9.
Table 9: Summary of the taxonomic situation of aquatic fauna
Source: TRAORE C. A. et ZIGANI S. N., 1996.
Vertebrate classes dealt with in this chapter are those of mammals, birds and reptiles. The situation of wild fauna is relatively well known, even if there is still much to do as far as field prospection is concerned. Table 10 shows the situation of the taxonomic knowledge of this fauna.
Table 10 : Summary of the taxonomic inventory of terrestrial wild fauna
Source: OUEDRAOGO L. et KAFANDO P., 1996
Domestic fauna is not abundant species because producers are seeking an important qualitative and quantitative yield of this fauna rather than variability. The taxonomic study of domestic fauna is summarised in the following table:
Table 11 : Summary of the taxonomic study on domestic fauna
Source : SANA O., 1997
The flora is constituted of forestry, agricultural, food garden, industrial, medicinal, fodder, ornamental plants, etc. The study of the plant kingdom dealt with aquatic flora and terrestrial flora.
Very few inventories of Burkina Faso aquatic plants have been made. Indeed, of the country's 1 300 water bodies, only 5 have benefited from a micro-flora taxonomic inventory, and hardly fifty have been studied from the viewpoint of herbaceous flora of aquatic milieux (OUEDRAOGO R. L., 1996).
Taxonomic inventories of the aquatic flora at the level of n°2 and n°3 dams of Ouagadougou and Loumbila, Kompienga and Bagré dams gave the taxonomic results shown in table 12. In addition, the inventories undertaken show that, of this recorded micro-flora 22 have not been determined.
Table 12: Summary of the taxonomic study on aquatic micro-flora
Source: OUEDRAOGO R. L., 1997.
Aquatic herbaceous flora is made up of herbaceous plants and includes four sub-groups:
Table 13: Caption of the taxonomic inventory of aquatic herbaceous flora
|Taxons-flora sub- groups||Families||Genera||Species|
|Water zones saturated macrophytes||10||17||24|
Source : OUEDRAOGO R. L., 1996
The taxonomic data collected on terrestrial flora concerned higher fungi, herbaceous flora, (herbaceous flora and agricultural herbaceous flora), ligneous flora (forestry, fruit, ornamental and medicinal).
The taxonomic inventories of higher fungi in Burkina Faso are not as advanced as the ones of higher plants. According to SANOU and BA, 1996, 8 families, 13 genera and 28 species of higher fungi are now known in Burkina Faso.
Although the floral inventories dealt with the whole country, knowledge on herbaceous plant taxonomy is not very important.
The taxonomic inventories made in all the areas of the country on terrestrial herbaceous plants made it possible to record 87 families, 333 genera and 627 species.
The data collected reveal the predominance of species from some families such as: leguminous plants (145 species) and graminae (145 species). Moreover, other families are considered as frequent in the field, particularly the Acanthaceae (26 species), Amaranthaceae (21 species), Asclepiadaceae (27 species), Convolvulaceae (27 species), Euphorbiaceae (12 species) and Solanaceae (12 species).
Within the ligneous flora, the monogeneric families are more numerous than the multigeneric families which include the Caesalpiniaceae, Apocynaceae, Euphorbiaceae, Papilionaceae, Rubiaceae, Anacardiaceae, Ampelidaceae, Mimosaceae, Asclepiadaceae, Meliaceae, Palmae, Sapindaceae, Capparidaceae, Combretaceae and Sapotaceae. The local ligneous forestry flora (trees, small shrubs and creepers) includes 55 families, 214 genera and 376 species (with 95 exotic species)
Data shown in chapter 3.1 are summarised in table 14.
Table 14: Summary of biodiversity taxonomic inventories
|Kingdom||Components||Number of families||Number of genera||Number of species|
|Plantae (Plants)||Higher fungi||8||13||28|
|Aquatic herbaceous flora dependent on wetlands||76||118||185|
|Terrestrial herbaceous flora||87||333||627|
Appendix 2 compares the situation of the taxonomic inventory to the main phylum of biological diversity according to the five kingdoms of Margulius, L. et K. Schwart (1988).
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