Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Houédomè
Benin
AwTropical, savannah(100 %)
Species observed
295
Observations
600
Area
29,3km²
Ecological tissue
Sample of 23 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 Houédomè : 14 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 4 types (connectance 12.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
24
Interactions affichées
33
Connectance
0.120
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
295 distinct species · 600 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,6°C
Annual rain
1 227mm
Warmest m°
30,2°C
Coldest m°
23,3°C
Elevation: -9 m on average (min -77 m, max 5 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,6°C
Annual rain
1 227mm
Warmest month
30,2°C
Coldest month
23,3°C
Mean alt.
-9m
Min
-77m
Max
5m
Std. dev.
19m
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
50,7g/kg
Clay
48,9%
Sand
23,1%
Silt
28,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Aguégués
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,6
Org. C
61,6g/kg
Clay
49,0%
Sand
22,8%
Silt
28,2%
5–15 cm
pH H₂O
5,6
Org. C
56,8g/kg
Clay
50,1%
Sand
22,8%
Silt
27,2%
15–30 cm
pH H₂O
5,6
Org. C
33,6g/kg
Clay
47,7%
Sand
23,9%
Silt
28,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest15.3%
Crops4.3%
Built-up0.6%
Bare soil0.1%
Other (grassland, water…)79.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 2 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
4,7km
Lake surface here
9,17km²
Basins crossed
3
Max stream order
6
Max drainage
56 634km²
Discharge in basins
20,4m³/s
Mean precip.
1 210mm/an
Mean T°
27,4°C
Moisture idx
-0,20
Mean runoff
427mm/an
Mean elev. (basins)
22m
Watersheds crossing here
Lakes (2, top by area)
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
54,9%
Pesticides
13,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1🌊 Marine · 1📍 Point sites · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN