Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Houédo-Aguékon
Benin
AwTropical, savannah(100 %)
Species observed
461
Observations
8 084
Area
25km²
Ecological tissue
Sample of 35 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 Houédo-Aguékon : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
42
Connectance
0.067
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
461 distinct species · 8 084 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,7°C
Annual rain
1 197mm
Warmest m°
30,7°C
Coldest m°
23,2°C
Elevation: 1 m on average (min -16 m, max 3 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,7°C
Annual rain
1 197mm
Warmest month
30,7°C
Coldest month
23,2°C
Mean alt.
1m
Min
-16m
Max
3m
Std. dev.
4m
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
5,5
Org. C
30,0g/kg
Clay
36,1%
Sand
30,8%
Silt
33,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Sô-Ava
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,5
Org. C
44,2g/kg
Clay
34,7%
Sand
31,3%
Silt
34,0%
5–15 cm
pH H₂O
5,5
Org. C
32,0g/kg
Clay
37,3%
Sand
29,9%
Silt
32,7%
15–30 cm
pH H₂O
5,5
Org. C
14,0g/kg
Clay
36,2%
Sand
31,2%
Silt
32,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest18.5%
Crops4.2%
Built-up0.9%
Bare soil0.0%
Other (grassland, water…)76.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 3 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
5,3km
Lake surface here
6,70km²
Basins crossed
2
Max stream order
1
Max drainage
56 634km²
Discharge in basins
36,4m³/s
Mean precip.
1 252mm/an
Mean T°
27,2°C
Moisture idx
-0,11
Mean runoff
448mm/an
Mean elev. (basins)
1m
Watersheds crossing here
Lakes (3, top by area)
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Built-up
94,2%
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