Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Houinviguè
Benin
AwTropical, savannah(100 %)
Species observed
628
Observations
2 736
Area
40,2km²
Ecological tissue
Sample of 48 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 Houinviguè : 34 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 6 types (connectance 4.7%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
50
Interactions affichées
57
Connectance
0.046
Patrimoniales
3
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
628 distinct species · 2 736 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,5°C
Annual rain
1 302mm
Warmest m°
33,5°C
Coldest m°
22,2°C
Elevation: 75 m on average (min 5 m, max 120 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 302mm
Warmest month
33,5°C
Coldest month
22,2°C
Mean alt.
75m
Min
5m
Max
120m
Std. dev.
34m
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
22,7g/kg
Clay
28,4%
Sand
55,8%
Silt
15,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Bonou
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
34,9g/kg
Clay
27,8%
Sand
55,2%
Silt
16,9%
5–15 cm
pH H₂O
6,1
Org. C
19,7g/kg
Clay
27,5%
Sand
56,9%
Silt
15,6%
15–30 cm
pH H₂O
6,1
Org. C
13,6g/kg
Clay
30,0%
Sand
55,3%
Silt
14,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest20.7%
Crops22.9%
Built-up1.0%
Bare soil0.5%
Other (grassland, water…)54.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
2,3km
Basins crossed
2
Max stream order
6
Max drainage
48 989km²
Discharge in basins
5,7m³/s
Mean precip.
1 135mm/an
Mean T°
27,5°C
Moisture idx
-0,31
Mean runoff
373mm/an
Mean elev. (basins)
45m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,0nW
Built-up
104,2%
Pesticides
13,4kg/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