Zone de confluence Mouhoun-Sourou
IUCN VIWetland of International Importance (Ramsar Site) · 2017
232 km²
Commune · BFA
Sono
Burkina Faso
BShArid, steppe, hot(100 %)
Species observed
143
Observations
274
Area
389,5km²
Ecological tissue
Sample of 8 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Sono : 5 espèces reliées par 11 interactions GloBI sur 3 types (connectance 39.3%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
8
Interactions affichées
11
Connectance
0.393
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
143 distinct species · 274 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
29,0°C
Annual rain
748mm
Warmest m°
40,4°C
Coldest m°
17,5°C
Elevation: 255 m on average (min 252 m, max 262 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
29,0°C
Annual rain
748mm
Warmest month
40,4°C
Coldest month
17,5°C
Mean alt.
255m
Min
252m
Max
262m
Std. dev.
2m
Köppen-Geiger (dominant)
BShArid, steppe, hot(100 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,6
Org. C
9,5g/kg
Clay
32,0%
Sand
40,2%
Silt
27,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Kossi
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,6
Org. C
10,9g/kg
Clay
27,7%
Sand
43,2%
Silt
29,1%
5–15 cm
pH H₂O
6,6
Org. C
9,9g/kg
Clay
32,1%
Sand
39,8%
Silt
28,1%
15–30 cm
pH H₂O
6,6
Org. C
7,9g/kg
Clay
36,1%
Sand
37,4%
Silt
26,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.5%
Crops31.6%
Built-up0.2%
Bare soil0.4%
Other (grassland, water…)59.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 3 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
44,8km
Lake surface here
20,38km²
Basins crossed
7
Max stream order
7
Max drainage
52 290km²
Discharge in basins
43,4m³/s
Mean precip.
669mm/an
Mean T°
28,5°C
Moisture idx
-0,67
Mean runoff
35mm/an
Mean elev. (basins)
272m
Watersheds crossing here
- Bassin du Sourousub-area374,2 km²overlap121.05 km²31%
- Bassin du Mouhounsub-area170,2 km²overlap113.64 km²29%
- Basin #04400sub-area2 065,5 km²overlap84.05 km²22%
- Bassin du Sourousub-area163 km²overlap51.95 km²13%
- Bassin du Sourousub-area1 099,1 km²overlap10.04 km²3%
- Bassin du Mouhounsub-area120,2 km²overlap8.56 km²2%
- Bassin du Mouhounsub-area574,9 km²overlap0.24 km²0%
Lakes (3, top by area)
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
18,9%
Pesticides
1,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN VI · 1
La Vallée du Sourou
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2009
212 km²
Confluent du Sourou-Volta Noire
IUCN Not ReportedClassified Forest · 1937
158 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN