HydroBASINS lev08 watershed · #1081118600
Bassin de Uaso Nyiro
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 : Isiolo North, Isiolo South
Sub-basin area
2 977,6km²
Upstream area
22 824km²
Discharge
45,92m³/s
Mean elev.
324m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ewaso Nyiro3289 km²
- Bassin de Ewaso Nyiro748 km²
2 dept-equivalent regions (GADM L2)
- 1636.3 km²55.2% of basin
- 1328.0 km²44.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
59 distinct species · 107 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Uaso Nyiro : 22 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 15 interactions GloBI sur 3 types (connectance 6.5%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
26,6°C
Annual rain
330mm
Moisture idx (CMI)
-0,84
Runoff
23mm/an
PET
2 058mm
AET
275mm
Mean slope
0,6°
Water table
95cm
Forest
1%
Crops
8%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)