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 IV
Benin
AwTropical, savannah(100 %)
Species observed
612
Observations
1 366
Area
10,7km²
Ecological tissue
Sample of 37 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 IV : 26 espèces reliées par 39 interactions GloBI sur 6 types (connectance 5.5%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
38
Interactions affichées
39
Connectance
0.056
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
612 distinct species · 1 366 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,5°C
Annual rain
1 335mm
Warmest m°
30,4°C
Coldest m°
23,1°C
Elevation: 22 m on average (min 13 m, max 31 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 335mm
Warmest month
30,4°C
Coldest month
23,1°C
Mean alt.
22m
Min
13m
Max
31m
Std. dev.
3m
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
40,8g/kg
Clay
19,8%
Sand
69,4%
Silt
10,9%
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
51,0g/kg
Clay
19,3%
Sand
69,1%
Silt
11,6%
5–15 cm
pH H₂O
5,8
Org. C
44,1g/kg
Clay
17,9%
Sand
71,6%
Silt
10,5%
15–30 cm
pH H₂O
5,8
Org. C
27,2g/kg
Clay
22,1%
Sand
67,4%
Silt
10,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest0.3%
Crops0.1%
Built-up35.0%
Bare soil0.0%
Other (grassland, water…)64.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
0,1km
Basins crossed
2
Max stream order
1
Max drainage
48 989km²
Discharge in basins
4,6m³/s
Mean precip.
1 299mm/an
Mean T°
27,4°C
Moisture idx
-0,10
Mean runoff
494mm/an
Mean elev. (basins)
14m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
78hab/km²
Night light
11,5nW
Built-up
3 502,2%
Pesticides
13,5kg/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