Basse Vallée de l'Ouémé, Lagune de Porto-Novo, Lac Nokoué
IUCN VWetland of International Importance (Ramsar Site) · 2000
6 532 km²
Commune · BEN
Ganvie II
Benin
AwTropical, savannah(100 %)
Species observed
735
Observations
8 911
Area
28,8km²
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 Ganvie II : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 49 interactions GloBI sur 4 types (connectance 7.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
49
Connectance
0.074
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
735 distinct species · 8 911 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,7°C
Annual rain
1 210mm
Warmest m°
30,2°C
Coldest m°
23,3°C
Elevation: -11 m on average (min -59 m, max 1 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,7°C
Annual rain
1 210mm
Warmest month
30,2°C
Coldest month
23,3°C
Mean alt.
-11m
Min
-59m
Max
1m
Std. dev.
12m
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
5,6
Org. C
36,4g/kg
Clay
39,4%
Sand
31,3%
Silt
29,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Sô-Ava
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,7
Org. C
50,0g/kg
Clay
37,2%
Sand
31,8%
Silt
31,0%
5–15 cm
pH H₂O
5,6
Org. C
43,9g/kg
Clay
40,0%
Sand
30,5%
Silt
29,5%
15–30 cm
pH H₂O
5,6
Org. C
15,3g/kg
Clay
40,9%
Sand
31,7%
Silt
27,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest3.2%
Crops0.4%
Built-up3.1%
Bare soil0.0%
Other (grassland, water…)93.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 1 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
3,5km
Lake surface here
22,51km²
Basins crossed
3
Max stream order
4
Max drainage
58 742km²
Discharge in basins
73,7m³/s
Mean precip.
1 148mm/an
Mean T°
27,2°C
Moisture idx
-0,23
Mean runoff
318mm/an
Mean elev. (basins)
34m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
4hab/km²
Night light
0,7nW
Built-up
313,4%
Pesticides
12,2kg/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