Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Gangban
Benin
AwTropical, savannah(100 %)
Species observed
189
Observations
3 064
Area
23,8km²
Ecological tissue
Sample of 43 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 Gangban : 33 espèces reliées par 39 interactions GloBI sur 4 types (connectance 4.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
43
Interactions affichées
39
Connectance
0.043
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
189 distinct species · 3 064 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,8°C
Annual rain
1 144mm
Warmest m°
32,2°C
Coldest m°
22,8°C
Elevation: 3 m on average (min 2 m, max 4 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,8°C
Annual rain
1 144mm
Warmest month
32,2°C
Coldest month
22,8°C
Mean alt.
3m
Min
2m
Max
4m
Std. dev.
1m
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
5,6
Org. C
30,4g/kg
Clay
49,8%
Sand
20,3%
Silt
29,9%
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
5,6
Org. C
44,0g/kg
Clay
46,9%
Sand
20,6%
Silt
32,4%
5–15 cm
pH H₂O
5,5
Org. C
30,7g/kg
Clay
49,8%
Sand
20,1%
Silt
30,1%
15–30 cm
pH H₂O
5,5
Org. C
16,5g/kg
Clay
52,7%
Sand
20,1%
Silt
27,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest7.8%
Crops51.4%
Built-up1.5%
Bare soil0.1%
Other (grassland, water…)39.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 1 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
5,8km
Lake surface here
0,15km²
Basins crossed
2
Max stream order
6
Max drainage
48 989km²
Discharge in basins
2,4m³/s
Mean precip.
1 122mm/an
Mean T°
27,5°C
Moisture idx
-0,32
Mean runoff
343mm/an
Mean elev. (basins)
53m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Built-up
149,0%
Pesticides
13,2kg/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