Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Sagon
Benin
AwTropical, savannah(100 %)
Species observed
297
Observations
551
Area
78,4km²
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 Sagon : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 52 interactions GloBI sur 5 types (connectance 4.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
47
Interactions affichées
52
Connectance
0.048
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
297 distinct species · 551 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,3°C
Annual rain
1 061mm
Warmest m°
35,5°C
Coldest m°
22,5°C
Elevation: 23 m on average (min 14 m, max 37 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,3°C
Annual rain
1 061mm
Warmest month
35,5°C
Coldest month
22,5°C
Mean alt.
23m
Min
14m
Max
37m
Std. dev.
8m
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
15,7g/kg
Clay
21,9%
Sand
57,2%
Silt
21,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Ouinhi
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
24,4g/kg
Clay
27,2%
Sand
51,5%
Silt
21,4%
5–15 cm
pH H₂O
6,3
Org. C
14,0g/kg
Clay
19,4%
Sand
59,6%
Silt
21,0%
15–30 cm
pH H₂O
6,3
Org. C
8,6g/kg
Clay
18,9%
Sand
60,5%
Silt
20,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest19.2%
Crops22.5%
Built-up0.7%
Bare soil0.3%
Other (grassland, water…)57.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
12,6km
Basins crossed
1
Max stream order
6
Max drainage
39 242km²
Discharge in basins
5,2m³/s
Mean precip.
1 107mm/an
Mean T°
27,5°C
Moisture idx
-0,39
Mean runoff
272mm/an
Mean elev. (basins)
108m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Built-up
70,7%
Pesticides
13,1kg/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