HydroBASINS lev08 watershed · #1080027000
Bassin de Bolon Guior
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 1 administrative regions : Foundiougne
Sub-basin area
540,8km²
Upstream area
540,8km²
Discharge
0,07m³/s
Mean elev.
3m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- FoundiougneFatick · Senegal533.9 km²99.1% of basin
7 intersecting protected areas
Delta du Saloum
IUCN Not ReportedWetland of International Importance (Ramsar Site)
538.83 km² overlap
Delta du Saloum
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
538.83 km² overlap
AMP Sangomar
IUCN VIMarine Protected Area
94.71 km² overlap
AMP Gandoule
IUCN VIMarine Protected Area
93.09 km² overlap
AMP Sokone
IUCN VIMarine Protected Area
38.20 km² overlap
Delta du Saloum
IUCN IINational Park
32.70 km² overlap
Delta du Saloum
IUCN IINational Park
31.44 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
410 distinct species · 4 554 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Bolon Guior : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 3 types (connectance 6.6%, 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°
26,8°C
Annual rain
731mm
Moisture idx (CMI)
-0,61
Runoff
28mm/an
PET
1 895mm
AET
617mm
Mean slope
0,1°
Water table
7cm
Forest
73%
Crops
3%
Urban
3%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)