HydroBASINS lev08 watershed · #1080027170
Bassin · #1080027170
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 5 administrative regions : Dagana, Kébémer, Louga, Saint-Louis, Tivaouane
Sub-basin area
2 499,6km²
Upstream area
2 499,6km²
Discharge
0m³/s
Mean elev.
29m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 928.7 km²37.3% of basin
- 923.7 km²37.1% of basin
- 371.1 km²14.9% of basin
- Saint-LouisSaint-Louis · Senegal231.7 km²9.3% of basin
- 0.0 km²0.0% of basin
8 intersecting protected areas
Wetland of International Importance (Ramsar Site)
18.35 km² overlap
Langue de Barbarie
IUCN IINational Park
18.35 km² overlap
Wetland of International Importance (Ramsar Site)
7.19 km² overlap
Gueumbeul
IUCN IVWildlife Reserve
5.37 km² overlap
Foret de Leybar
IUCN Not ReportedForest Reserve
1.82 km² overlap
Foret de Pire-Goureye
IUCN Not ReportedForest Reserve
0.75 km² overlap
AMP de Saint-Louis
IUCN VIMarine Protected Area
0.58 km² overlap
AMP Kayar
IUCN VIMarine Protected Area
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
844 distinct species · 25 950 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 · #1080027170 : 18 espèces reliées par 33 interactions GloBI sur 3 types (connectance 9.4%, filtre Serrano α=0.2). 9 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°
25,1°C
Annual rain
363mm
Moisture idx (CMI)
-0,79
Runoff
8mm/an
PET
1 709mm
AET
305mm
Mean slope
0,4°
Water table
129cm
Forest
0%
Crops
12%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)