Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Agonkanmè
Benin
AwTropical, savannah(100 %)
Species observed
1 045
Observations
7 394
Area
73km²
Ecological tissue
Sample of 42 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 Agonkanmè : 39 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 3 bulles famille, 34 interactions GloBI documentées sur 4 types (connectance 3.9%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
42
Interactions affichées
34
Connectance
0.040
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
1 045 distinct species · 7 394 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,9°C
Annual rain
1 063mm
Warmest m°
31,7°C
Coldest m°
23,0°C
Elevation: 20 m on average (min 2 m, max 37 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,9°C
Annual rain
1 063mm
Warmest month
31,7°C
Coldest month
23,0°C
Mean alt.
20m
Min
2m
Max
37m
Std. dev.
9m
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
5,8
Org. C
24,9g/kg
Clay
20,2%
Sand
66,3%
Silt
13,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Kpomassè
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,8
Org. C
35,4g/kg
Clay
20,0%
Sand
66,1%
Silt
13,9%
5–15 cm
pH H₂O
5,8
Org. C
24,1g/kg
Clay
19,5%
Sand
67,0%
Silt
13,5%
15–30 cm
pH H₂O
5,8
Org. C
15,3g/kg
Clay
21,0%
Sand
65,8%
Silt
13,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest18.1%
Crops10.1%
Built-up3.1%
Bare soil0.1%
Other (grassland, water…)68.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
21,6km
Basins crossed
2
Max stream order
2
Max drainage
3 664km²
Discharge in basins
0,6m³/s
Mean precip.
1 035mm/an
Mean T°
27,3°C
Moisture idx
-0,39
Mean runoff
265mm/an
Mean elev. (basins)
97m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
6hab/km²
Night light
0,4nW
Built-up
314,4%
Pesticides
4,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 2🌊 Marine · 2📍 Point sites · 1
Basse Vallée du Couffo, Lagune Côtiere, Chenal Aho, Lac Ahémé
IUCN VWetland of International Importance (Ramsar Site) · 2000
5 245 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN