HydroBASINS lev08 watershed · #1080681040
Bassin de Grand Bao 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 3 administrative regions across 2 countries : Central Baddibu, Nioro du Rip, Upper Baddibu
Sub-basin area
355,3km²
Upstream area
3 534,8km²
Discharge
5,43m³/s
Mean elev.
15m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080674770598 km²
- Bassin de Grand Bao Bôlon38 km²
3 dept-equivalent regions (GADM L2)
- 168.9 km²47.7% of basin
- 136.6 km²38.6% of basin
- Nioro du RipKaolack · Senegal48.2 km²13.6% of basin
4 intersecting protected areas
Baobolong
IUCN VIWetland Reserve
154.24 km² overlap
Baobolon Wetland Reserve
IUCN Not ReportedWetland of International Importance (Ramsar Site)
140.55 km² overlap
Foret de Mambi
IUCN Not ReportedForest Reserve
5.96 km² overlap
Kiang West
IUCN IINational Park
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
481 distinct species · 15 739 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Grand Bao Bôlon : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 8.1%, filtre Serrano α=0.2). 6 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°
27,5°C
Annual rain
741mm
Moisture idx (CMI)
-0,64
Runoff
72mm/an
PET
2 041mm
AET
625mm
Mean slope
0,4°
Water table
64cm
Forest
0%
Crops
42%
Urban
0%
Protected
41%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)