Vallée du Niari
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2012
599 km²
District · COG
Sibiti
Republic of the Congo
AwTropical, savannah(100 %)
Species observed
202
Observations
436
Area
7 238,4km²
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 Sibiti : 6 espèces reliées par 7 interactions GloBI sur 3 types (connectance 19.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
9
Interactions affichées
7
Connectance
0.194
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
202 distinct species · 436 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,0°C
Annual rain
1 624mm
Warmest m°
29,5°C
Coldest m°
18,0°C
Elevation: 385 m on average (min 89 m, max 628 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
24,0°C
Annual rain
1 624mm
Warmest month
29,5°C
Coldest month
18,0°C
Mean alt.
385m
Min
89m
Max
628m
Std. dev.
122m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,0
Org. C
28,6g/kg
Clay
42,8%
Sand
33,6%
Silt
23,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,0
Org. C
39,0g/kg
Clay
41,7%
Sand
34,5%
Silt
23,8%
5–15 cm
pH H₂O
5,0
Org. C
27,1g/kg
Clay
42,2%
Sand
33,9%
Silt
23,9%
15–30 cm
pH H₂O
5,1
Org. C
19,7g/kg
Clay
44,4%
Sand
32,4%
Silt
23,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest78.4%
Crops1.4%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)20.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology24 basins · 0 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
271,0km
Basins crossed
24
Max stream order
7
Max drainage
43 763km²
Discharge in basins
1 667,5m³/s
Mean precip.
1 463mm/an
Mean T°
23,8°C
Moisture idx
-0,04
Mean runoff
435mm/an
Mean elev. (basins)
399m
Watersheds crossing here
- Bassin de Louessésub-area975,2 km²overlap860.12 km²12%
- Bassin de Niarisub-area796,4 km²overlap792.90 km²11%
- Bassin de Bouenzasub-area2 187 km²overlap776.00 km²11%
- Bassin de Niarisub-area727,7 km²overlap722.29 km²10%
- Bassin de Loangosub-area1 418,2 km²overlap693.89 km²10%
- Basin #20300sub-area613,3 km²overlap439.49 km²6%
- Basin #20380sub-area438,2 km²overlap436.24 km²6%
- Basin #22720sub-area417,3 km²overlap415.46 km²6%
- Bassin de Niarisub-area825 km²overlap320.35 km²4%
15 more basinssorted by overlap
- Basin #22440sub-area378,9 km²overlap272.98 km²4%
- Basin #15180sub-area264,5 km²overlap263.37 km²4%
- Basin #17910sub-area253,5 km²overlap252.42 km²3%
- Basin #17720sub-area1 249,6 km²overlap196.84 km²3%
- Basin #15920sub-area497,2 km²overlap183.84 km²3%
- Bassin de Louessésub-area300,1 km²overlap182.44 km²3%
- Bassin de Niarisub-area221,3 km²overlap123.50 km²2%
- Basin #27500sub-area297,5 km²overlap95.77 km²1%
- Bassin de Niarisub-area126,1 km²overlap91.59 km²1%
- Basin #14710sub-area243,2 km²overlap67.44 km²1%
- Basin #15750sub-area322,9 km²overlap34.80 km²0%
- Bassin de Louessésub-area34,9 km²overlap7.25 km²0%
- Bassin de Niarisub-area18 km²overlap4.85 km²0%
- Bassin de Niarisub-area21,1 km²overlap4.53 km²0%
- Bassin de Louessésub-area1 289,4 km²overlap0.02 km²0%
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
4,2%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
Tsoulou
IUCN IVWildlife Reserve · 1956
288 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN