HydroBASINS lev08 watershed · #1080026810
Bassin de Koular Bôlon
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 6 administrative regions across 2 countries : Central Baddibu, Foundiougne, Jokadu, Lower Baddibu, Lower Nuimi +1
Sub-basin area
1 695,5km²
Upstream area
1 695,8km²
Discharge
4,25m³/s
Mean elev.
26m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- Nioro du RipKaolack · Senegal620.6 km²36.7% of basin
- FoundiougneFatick · Senegal551.3 km²32.6% of basin
- 173.8 km²10.3% of basin
- 168.0 km²9.9% of basin
- 96.7 km²5.7% of basin
- 76.3 km²4.5% of basin
10 intersecting protected areas
Jokadu
IUCN IINational Park
121.92 km² overlap
Foret de Baria
IUCN Not ReportedForest Reserve
52.42 km² overlap
Foret de Patako
IUCN Not ReportedForest Reserve
42.94 km² overlap
Foret de Saboya
IUCN Not ReportedForest Reserve
20.60 km² overlap
Foret de Pane
IUCN Not ReportedForest Reserve
16.14 km² overlap
Baobolong
IUCN VIWetland Reserve
11.21 km² overlap
Foret de Mambi
IUCN Not ReportedForest Reserve
3.35 km² overlap
Delta du Saloum
IUCN IINational Park
2.13 km² overlap
Delta du Saloum
IUCN IINational Park
2.06 km² overlap
1 more protected areassorted by overlap area
Baobolon Wetland Reserve
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
620 distinct species · 4 564 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Koular Bôlon : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 types (connectance 10.9%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,4°C
Annual rain
756mm
Moisture idx (CMI)
-0,62
Runoff
75mm/an
PET
1 996mm
AET
637mm
Mean slope
0,4°
Water table
75cm
Forest
4%
Crops
65%
Urban
2%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)