HydroBASINS lev08 watershed · #1080684490
Bassin de Niéri Ko
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 2 administrative regions : Goudiry, Tambacounda
Sub-basin area
655,6km²
Upstream area
11 682,9km²
Discharge
18,31m³/s
Mean elev.
52m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Niéri Ko1006 km²
- Bassin de Banlan Kountou539 km²
2 dept-equivalent regions (GADM L2)
- TambacoundaTambacounda · Senegal488.5 km²74.8% of basin
- 164.6 km²25.2% of basin
1 intersecting protected areas
Foret de Diambour
IUCN Not ReportedForest Reserve
484.81 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
317 distinct species · 2 203 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Niéri Ko : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 4 types (connectance 5.6%, 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°
28,2°C
Annual rain
807mm
Moisture idx (CMI)
-0,60
Runoff
71mm/an
PET
2 019mm
AET
682mm
Mean slope
0,6°
Water table
128cm
Forest
0%
Crops
1%
Urban
0%
Protected
74%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)