Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Adjohoun
Benin
AwTropical, savannah(100 %)
Species observed
876
Observations
5 522
Area
30,8km²
Ecological tissue
Sample of 22 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 Adjohoun : 19 espèces reliées par 17 interactions GloBI sur 4 types (connectance 7.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
22
Interactions affichées
17
Connectance
0.074
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
876 distinct species · 5 522 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,5°C
Annual rain
1 344mm
Warmest m°
32,7°C
Coldest m°
22,3°C
Elevation: 59 m on average (min 5 m, max 94 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 344mm
Warmest month
32,7°C
Coldest month
22,3°C
Mean alt.
59m
Min
5m
Max
94m
Std. dev.
20m
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
21,4g/kg
Clay
33,4%
Sand
48,3%
Silt
18,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Adjohoun
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
30,2g/kg
Clay
32,3%
Sand
48,1%
Silt
19,6%
5–15 cm
pH H₂O
5,9
Org. C
20,9g/kg
Clay
32,7%
Sand
49,1%
Silt
18,2%
15–30 cm
pH H₂O
5,9
Org. C
13,0g/kg
Clay
35,3%
Sand
47,8%
Silt
16,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest24.1%
Crops9.2%
Built-up2.8%
Bare soil0.5%
Other (grassland, water…)63.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
3,6km
Basins crossed
1
Max stream order
6
Max drainage
48 989km²
Discharge in basins
4,7m³/s
Mean precip.
1 139mm/an
Mean T°
27,5°C
Moisture idx
-0,31
Mean runoff
382mm/an
Mean elev. (basins)
43m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
5hab/km²
Night light
0,2nW
Built-up
277,4%
Pesticides
13,4kg/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