Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Hévié
Benin
AwTropical, savannah(100 %)
Species observed
548
Observations
1 774
Area
39,8km²
Ecological tissue
Sample of 33 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 Hévié : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 4 types (connectance 5.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
33
Interactions affichées
28
Connectance
0.053
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
548 distinct species · 1 774 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,6°C
Annual rain
1 167mm
Warmest m°
30,5°C
Coldest m°
23,2°C
Elevation: 15 m on average (min 5 m, max 34 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,6°C
Annual rain
1 167mm
Warmest month
30,5°C
Coldest month
23,2°C
Mean alt.
15m
Min
5m
Max
34m
Std. dev.
6m
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
5,7
Org. C
27,0g/kg
Clay
30,0%
Sand
49,0%
Silt
21,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Abomey-Calavi
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,7
Org. C
40,7g/kg
Clay
30,6%
Sand
48,3%
Silt
21,1%
5–15 cm
pH H₂O
5,7
Org. C
23,8g/kg
Clay
29,9%
Sand
49,4%
Silt
20,7%
15–30 cm
pH H₂O
5,7
Org. C
16,6g/kg
Clay
29,5%
Sand
49,3%
Silt
21,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.2%
Crops7.9%
Built-up19.2%
Bare soil0.3%
Other (grassland, water…)63.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 0 rivers
Hydrology metrics for this exact territory
Lake surface here
0,45km²
Basins crossed
1
Max drainage
1 150km²
Discharge in basins
0,3m³/s
Mean precip.
1 106mm/an
Mean T°
27,2°C
Moisture idx
-0,27
Mean runoff
241mm/an
Mean elev. (basins)
46m
Watersheds crossing here
Lakes (1, top by area)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
27hab/km²
Night light
2,9nW
Built-up
1 919,5%
Pesticides
14,0kg/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