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 V
Benin
AwTropical, savannah(100 %)
Species observed
1 025
Observations
2 951
Area
20,6km²
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 V : 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 274mm
Warmest m°
30,4°C
Coldest m°
23,2°C
Elevation: 12 m on average (min 1 m, max 26 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 274mm
Warmest month
30,4°C
Coldest month
23,2°C
Mean alt.
12m
Min
1m
Max
26m
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
5,8
Org. C
49,3g/kg
Clay
21,2%
Sand
67,4%
Silt
11,4%
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
60,3g/kg
Clay
20,8%
Sand
67,1%
Silt
12,0%
5–15 cm
pH H₂O
5,8
Org. C
55,1g/kg
Clay
19,5%
Sand
69,6%
Silt
10,8%
15–30 cm
pH H₂O
5,8
Org. C
32,6g/kg
Clay
23,4%
Sand
65,4%
Silt
11,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.9%
Crops2.7%
Built-up21.7%
Bare soil0.2%
Other (grassland, water…)65.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
6,4km
Basins crossed
2
Max stream order
1
Max drainage
48 989km²
Discharge in basins
7,8m³/s
Mean precip.
1 267mm/an
Mean T°
27,4°C
Moisture idx
-0,14
Mean runoff
472mm/an
Mean elev. (basins)
20m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
33hab/km²
Night light
7,4nW
Built-up
2 169,4%
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