Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Oko-Akarè
Benin
AwTropical, savannah(100 %)
Species observed
201
Observations
974
Area
75,8km²
Ecological tissue
Sample of 4 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 Oko-Akarè : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 33.3%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
4
Interactions affichées
2
Connectance
0.333
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
201 distinct species · 974 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,4°C
Annual rain
1 226mm
Warmest m°
33,9°C
Coldest m°
21,9°C
Elevation: 130 m on average (min 86 m, max 151 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,4°C
Annual rain
1 226mm
Warmest month
33,9°C
Coldest month
21,9°C
Mean alt.
130m
Min
86m
Max
151m
Std. dev.
11m
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
6,0
Org. C
24,7g/kg
Clay
23,5%
Sand
63,5%
Silt
13,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Adja-Ouèrè
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
33,1g/kg
Clay
23,3%
Sand
63,2%
Silt
13,5%
5–15 cm
pH H₂O
6,0
Org. C
22,7g/kg
Clay
22,8%
Sand
64,3%
Silt
12,9%
15–30 cm
pH H₂O
6,0
Org. C
18,4g/kg
Clay
24,3%
Sand
62,9%
Silt
12,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest17.5%
Crops40.1%
Built-up1.9%
Bare soil0.2%
Other (grassland, water…)40.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
4
Max drainage
48 989km²
Discharge in basins
1,6m³/s
Mean precip.
1 211mm/an
Mean T°
27,3°C
Moisture idx
-0,25
Mean runoff
481mm/an
Mean elev. (basins)
62m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
0,1nW
Built-up
189,8%
Pesticides
13,3kg/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