HydroBASINS lev08 watershed · #1081210990
Bassin de Athi-Galana-Sabaki river
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 : Kitui South, Voi
Sub-basin area
540,1km²
Upstream area
33 025,7km²
Discharge
90,21m³/s
Mean elev.
351m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mbololo556 km²
- Bassin de Athi-Galana-Sabaki river66 km²
2 dept-equivalent regions (GADM L2)
- 365.2 km²67.9% of basin
- 172.6 km²32.1% of basin
1 intersecting protected areas
Tsavo East
IUCN IINational Park
537.75 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
355 distinct species · 1 813 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Athi-Galana-Sabaki river : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 8.6%, 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°
25,6°C
Annual rain
754mm
Moisture idx (CMI)
-0,57
Runoff
40mm/an
PET
1 748mm
AET
636mm
Mean slope
1,7°
Water table
222cm
Forest
0%
Crops
9%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)