Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Arrondisement III
Benin
AwTropical, savannah(100 %)
Species observed
1 025
Observations
2 951
Area
5,2km²
Ecological tissue
Sample of 45 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 Arrondisement III : 41 espèces reliées par 41 interactions GloBI sur 4 types (connectance 4.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
45
Interactions affichées
41
Connectance
0.041
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
1 025 distinct species · 2 951 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,5°C
Annual rain
1 259mm
Warmest m°
30,2°C
Coldest m°
23,3°C
Elevation: 4 m on average (min -1 m, max 19 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 259mm
Warmest month
30,2°C
Coldest month
23,3°C
Mean alt.
4m
Min
-1m
Max
19m
Std. dev.
6m
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
5,8
Org. C
52,8g/kg
Clay
18,3%
Sand
72,2%
Silt
9,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Porto-Novo
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,8
Org. C
63,9g/kg
Clay
17,8%
Sand
72,0%
Silt
10,2%
5–15 cm
pH H₂O
5,8
Org. C
59,5g/kg
Clay
16,3%
Sand
74,8%
Silt
8,9%
15–30 cm
pH H₂O
5,8
Org. C
35,0g/kg
Clay
20,8%
Sand
69,9%
Silt
9,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest10.0%
Crops0.0%
Built-up9.7%
Bare soil0.0%
Other (grassland, water…)80.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
1,1km
Basins crossed
1
Max stream order
1
Max drainage
7 334km²
Discharge in basins
2,5m³/s
Mean precip.
1 323mm/an
Mean T°
27,4°C
Moisture idx
-0,07
Mean runoff
511mm/an
Mean elev. (basins)
10m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
43hab/km²
Night light
4,7nW
Built-up
964,8%
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