HydroBASINS lev08 watershed · #1080026770
Bassin de Bitang Boloŋ
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 11 administrative regions across 2 countries : Bignona, Bounkiling, Foni Bintang Karanai, Foni Bondali, Foni Jarrol +6
Sub-basin area
1 614,6km²
Upstream area
1 614,6km²
Discharge
6,47m³/s
Mean elev.
30m
Administrative coverage
11 dept-equivalent regions (GADM L2)
- BounkilingSédhiou · Senegal966.5 km²60.1% of basin
- 316.4 km²19.7% of basin
- 129.6 km²8.1% of basin
- 89.6 km²5.6% of basin
- 82.6 km²5.1% of basin
- 15.9 km²1.0% of basin
- 4.4 km²0.3% of basin
- 1.5 km²0.1% of basin
3 moreFull L2 list
- Bignona1.0 km² · 0.1%
- Kiang East0.9 km² · 0.1%
- Médina Yoro Foula0.1 km² · 0.0%
3 intersecting protected areas
Kiang West
IUCN IINational Park
5.96 km² overlap
Tintiba and Dumbuto
IUCN VICommunity Protected Area
1.73 km² overlap
Bintang
IUCN VICommunity Protected Area
0.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
415 distinct species · 6 045 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 Bitang Boloŋ : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 2 types (connectance 9.5%, filtre Serrano α=0.2). 5 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°
27,2°C
Annual rain
876mm
Moisture idx (CMI)
-0,56
Runoff
109mm/an
PET
1 994mm
AET
719mm
Mean slope
0,4°
Water table
71cm
Forest
15%
Crops
20%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)