Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Dèmè
Benin
AwTropical, savannah(100 %)
Species observed
927
Observations
10 279
Area
25km²
Ecological tissue
Sample of 14 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 Dèmè : 13 espèces + 1 bulle famille, 8 interactions GloBI documentées sur 3 types (connectance 8.8%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
14
Interactions affichées
8
Connectance
0.088
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
927 distinct species · 10 279 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,5°C
Annual rain
1 335mm
Warmest m°
32,5°C
Coldest m°
22,4°C
Elevation: 55 m on average (min 3 m, max 91 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 335mm
Warmest month
32,5°C
Coldest month
22,4°C
Mean alt.
55m
Min
3m
Max
91m
Std. dev.
25m
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
6,0
Org. C
21,6g/kg
Clay
35,0%
Sand
47,3%
Silt
17,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Adjohoun
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
31,0g/kg
Clay
33,8%
Sand
47,0%
Silt
19,3%
5–15 cm
pH H₂O
5,9
Org. C
20,7g/kg
Clay
34,0%
Sand
48,1%
Silt
17,8%
15–30 cm
pH H₂O
5,9
Org. C
13,3g/kg
Clay
37,3%
Sand
46,8%
Silt
15,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest24.8%
Crops12.5%
Built-up1.8%
Bare soil0.3%
Other (grassland, water…)60.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
5,5km
Basins crossed
2
Max stream order
6
Max drainage
48 989km²
Discharge in basins
3,5m³/s
Mean precip.
1 148mm/an
Mean T°
27,5°C
Moisture idx
-0,30
Mean runoff
391mm/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
0,1nW
Built-up
175,4%
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