Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Ouinhi
Benin
AwTropical, savannah(100 %)
Species observed
177
Observations
480
Area
121km²
Ecological tissue
Sample of 18 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 Ouinhi : 15 espèces + 3 bulles famille, 14 interactions GloBI documentées sur 2 types (connectance 9.2%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
18
Interactions affichées
14
Connectance
0.091
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
177 distinct species · 480 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,2°C
Annual rain
1 076mm
Warmest m°
35,3°C
Coldest m°
22,4°C
Elevation: 28 m on average (min 13 m, max 41 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,2°C
Annual rain
1 076mm
Warmest month
35,3°C
Coldest month
22,4°C
Mean alt.
28m
Min
13m
Max
41m
Std. dev.
7m
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
6,4
Org. C
15,9g/kg
Clay
23,6%
Sand
55,8%
Silt
20,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Ouinhi
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
25,3g/kg
Clay
29,4%
Sand
49,5%
Silt
21,1%
5–15 cm
pH H₂O
6,4
Org. C
14,1g/kg
Clay
20,8%
Sand
58,7%
Silt
20,5%
15–30 cm
pH H₂O
6,4
Org. C
8,3g/kg
Clay
20,5%
Sand
59,3%
Silt
20,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest19.2%
Crops29.2%
Built-up0.6%
Bare soil0.2%
Other (grassland, water…)50.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
10,5km
Basins crossed
2
Max stream order
6
Max drainage
48 989km²
Discharge in basins
13,4m³/s
Mean precip.
1 124mm/an
Mean T°
27,5°C
Moisture idx
-0,35
Mean runoff
329mm/an
Mean elev. (basins)
74m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,0nW
Built-up
57,4%
Pesticides
13,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1🌊 Marine · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN