Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Atogon
Benin
AwTropical, savannah(100 %)
Species observed
860
Observations
5 374
Area
26,3km²
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 Atogon : 32 espèces reliées par 42 interactions GloBI sur 4 types (connectance 6.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
42
Connectance
0.063
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
860 distinct species · 5 374 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,4°C
Annual rain
1 216mm
Warmest m°
33,1°C
Coldest m°
22,0°C
Elevation: 114 m on average (min 75 m, max 132 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,4°C
Annual rain
1 216mm
Warmest month
33,1°C
Coldest month
22,0°C
Mean alt.
114m
Min
75m
Max
132m
Std. dev.
12m
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
21,5g/kg
Clay
15,2%
Sand
77,8%
Silt
7,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Allada
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
35,7g/kg
Clay
15,2%
Sand
77,3%
Silt
7,4%
5–15 cm
pH H₂O
6,0
Org. C
17,6g/kg
Clay
13,6%
Sand
79,3%
Silt
7,1%
15–30 cm
pH H₂O
5,9
Org. C
11,1g/kg
Clay
16,8%
Sand
76,8%
Silt
6,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest27.8%
Crops8.6%
Built-up2.2%
Bare soil0.2%
Other (grassland, water…)61.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
2
Max drainage
3 664km²
Discharge in basins
0,2m³/s
Mean precip.
1 063mm/an
Mean T°
27,3°C
Moisture idx
-0,34
Mean runoff
253mm/an
Mean elev. (basins)
78m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
0,3nW
Built-up
220,1%
Pesticides
12,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 2🌊 Marine · 2
Basse Vallée du Couffo, Lagune Côtiere, Chenal Aho, Lac Ahémé
IUCN VWetland of International Importance (Ramsar Site) · 2000
5 245 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN