Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Massè
Benin
AwTropical, savannah(100 %)
Species observed
230
Observations
882
Area
82,3km²
Ecological tissue
Sample of 5 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 Massè : 5 espèces reliées par 3 interactions GloBI sur 2 types (connectance 30.0%, filtre Serrano α=0.2).
Espèces affichées
5
Interactions affichées
3
Connectance
0.300
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
230 distinct species · 882 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,2°C
Annual rain
1 038mm
Warmest m°
35,3°C
Coldest m°
22,4°C
Elevation: 43 m on average (min 25 m, max 64 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,2°C
Annual rain
1 038mm
Warmest month
35,3°C
Coldest month
22,4°C
Mean alt.
43m
Min
25m
Max
64m
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
6,4
Org. C
17,2g/kg
Clay
20,8%
Sand
61,5%
Silt
17,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Adja-Ouèrè
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
27,6g/kg
Clay
25,7%
Sand
56,3%
Silt
18,0%
5–15 cm
pH H₂O
6,3
Org. C
15,0g/kg
Clay
18,3%
Sand
64,0%
Silt
17,8%
15–30 cm
pH H₂O
6,3
Org. C
9,1g/kg
Clay
18,3%
Sand
64,2%
Silt
17,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest21.1%
Crops19.2%
Built-up0.6%
Bare soil0.3%
Other (grassland, water…)58.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
2
Max drainage
48 989km²
Discharge in basins
9,2m³/s
Mean precip.
1 124mm/an
Mean T°
27,5°C
Moisture idx
-0,35
Mean runoff
330mm/an
Mean elev. (basins)
73m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,4nW
Built-up
56,8%
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