Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Igana
Benin
AwTropical, savannah(100 %)
Species observed
325
Observations
971
Area
83,1km²
Ecological tissue
Sample of 31 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 Igana : 23 espèces reliées par 28 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
28
Connectance
0.057
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
325 distinct species · 971 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,9°C
Annual rain
1 009mm
Warmest m°
34,8°C
Coldest m°
22,2°C
Elevation: 49 m on average (min 35 m, max 121 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,9°C
Annual rain
1 009mm
Warmest month
34,8°C
Coldest month
22,2°C
Mean alt.
49m
Min
35m
Max
121m
Std. dev.
8m
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
6,1
Org. C
18,9g/kg
Clay
38,2%
Sand
30,4%
Silt
31,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Pobè
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
29,4g/kg
Clay
39,2%
Sand
29,6%
Silt
31,2%
5–15 cm
pH H₂O
6,1
Org. C
17,1g/kg
Clay
39,2%
Sand
30,0%
Silt
30,8%
15–30 cm
pH H₂O
6,0
Org. C
10,1g/kg
Clay
36,2%
Sand
31,7%
Silt
32,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest21.3%
Crops15.8%
Built-up0.6%
Bare soil0.1%
Other (grassland, water…)62.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
1
Max drainage
723km²
Discharge in basins
1,1m³/s
Mean precip.
1 129mm/an
Mean T°
27,4°C
Moisture idx
-0,35
Mean runoff
441mm/an
Mean elev. (basins)
67m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
56,1%
Pesticides
17,5kg/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