Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Adjan
Benin
AwTropical, savannah(100 %)
Species observed
163
Observations
757
Area
36,8km²
Ecological tissue
Sample of 36 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 Adjan : 31 espèces reliées par 36 interactions GloBI sur 4 types (connectance 5.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
36
Connectance
0.057
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
163 distinct species · 757 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,5°C
Annual rain
1 260mm
Warmest m°
32,8°C
Coldest m°
22,3°C
Elevation: 82 m on average (min 41 m, max 109 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,5°C
Annual rain
1 260mm
Warmest month
32,8°C
Coldest month
22,3°C
Mean alt.
82m
Min
41m
Max
109m
Std. dev.
19m
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
5,9
Org. C
21,4g/kg
Clay
16,5%
Sand
75,3%
Silt
8,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Zè
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,9
Org. C
33,2g/kg
Clay
16,2%
Sand
75,1%
Silt
8,6%
5–15 cm
pH H₂O
5,9
Org. C
17,5g/kg
Clay
15,2%
Sand
76,6%
Silt
8,2%
15–30 cm
pH H₂O
5,8
Org. C
13,4g/kg
Clay
18,2%
Sand
74,1%
Silt
7,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest25.5%
Crops9.6%
Built-up1.8%
Bare soil0.6%
Other (grassland, water…)62.5%
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
2 064km²
Discharge in basins
0,3m³/s
Mean precip.
1 096mm/an
Mean T°
27,4°C
Moisture idx
-0,32
Mean runoff
259mm/an
Mean elev. (basins)
61m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,1nW
Built-up
177,8%
Pesticides
12,1kg/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