Vallée du Niari
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2012
599 km²
District · COG
Loudima
Republic of the Congo
AwTropical, savannah(100 %)
Species observed
43
Observations
79
Area
2 947,2km²
Ecological tissue
Sample of 3 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 Loudima : 3 espèces reliées par 2 interactions GloBI sur 2 types (connectance 66.7%, filtre Serrano α=0.2).
Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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
43 distinct species · 79 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,0°C
Annual rain
1 211mm
Warmest m°
30,8°C
Coldest m°
18,6°C
Elevation: 188 m on average (min 102 m, max 416 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
25,0°C
Annual rain
1 211mm
Warmest month
30,8°C
Coldest month
18,6°C
Mean alt.
188m
Min
102m
Max
416m
Std. dev.
57m
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
5,6
Org. C
30,7g/kg
Clay
39,4%
Sand
27,4%
Silt
33,2%
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
5,6
Org. C
41,6g/kg
Clay
38,3%
Sand
28,0%
Silt
33,6%
5–15 cm
pH H₂O
5,5
Org. C
28,9g/kg
Clay
38,9%
Sand
27,6%
Silt
33,5%
15–30 cm
pH H₂O
5,5
Org. C
21,5g/kg
Clay
40,8%
Sand
26,6%
Silt
32,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest22.9%
Crops5.1%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)71.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology18 basins · 12 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
285,4km
Lake surface here
5,95km²
Basins crossed
18
Max stream order
6
Max drainage
49 609km²
Discharge in basins
1 577,8m³/s
Mean precip.
1 193mm/an
Mean T°
25,3°C
Moisture idx
-0,22
Mean runoff
331mm/an
Mean elev. (basins)
201m
Watersheds crossing here
- Bassin de Niarisub-area648,2 km²overlap631.62 km²21%
- Bassin de Niarisub-area483,2 km²overlap465.30 km²16%
- Bassin de Niarisub-area825 km²overlap427.19 km²14%
- Bassin de Loudimasub-area442,4 km²overlap323.15 km²11%
- Bassin de Loudimasub-area437,3 km²overlap238.02 km²8%
- Bassin de Niarisub-area263,9 km²overlap215.00 km²7%
- Basin #27500sub-area297,5 km²overlap200.39 km²7%
- Bassin de Loangosub-area1 418,2 km²overlap168.84 km²6%
- Bassin de Niarisub-area1 216 km²overlap107.98 km²4%
9 more basinssorted by overlap
- Bassin de Niarisub-area221,3 km²overlap68.12 km²2%
- Bassin de Niarisub-area126,1 km²overlap33.93 km²1%
- Bassin de Niarisub-area28,7 km²overlap28.60 km²1%
- Bassin de Loudimasub-area776,5 km²overlap15.00 km²1%
- Bassin de Niarisub-area18 km²overlap13.11 km²0%
- Bassin de Louadisub-area294,1 km²overlap5.05 km²0%
- Bassin de Loangosub-area23,9 km²overlap3.24 km²0%
- Bassin de Niarisub-area727,7 km²overlap2.24 km²0%
- Bassin de Niarisub-area1 119,4 km²overlap0.48 km²0%
Lakes (12, top by area)
- Malengéarea2 km²avg depth2.1 m
- Mbotéarea1,8 km²avg depth1.7 m
- Lac 1408784area0,9 km²avg depth3.9 m
- Lac 1408786area0,5 km²avg depth3.0 m
- Lac 1408826area0,4 km²avg depth2.7 m
- Lac 1408785area0,4 km²avg depth2.2 m
- Lac 1408773area0,4 km²avg depth2.3 m
- Lac 1408779area0,3 km²avg depth2.2 m
- Lac 1408774area0,2 km²avg depth1.7 m
Rivers / streams (2, 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
5,9%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN