HydroBASINS lev08 watershed · #1081206730
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 3 administrative regions : Kibwezi East, Kitui South, Voi
Sub-basin area
223,4km²
Upstream area
23 625,4km²
Discharge
63,69m³/s
Mean elev.
593m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- Kibwezi EastMakueni · Kenya129.4 km²58.2% of basin
- 69.8 km²31.4% of basin
- 23.2 km²10.4% of basin
4 intersecting protected areas
Tsavo West
IUCN IINational Park
150.87 km² overlap
Tsavo East
IUCN IINational Park
71.34 km² overlap
Tsavo Road and Railways
IUCN Not ReportedNational Reserve
2.14 km² overlap
Ngai Ndethia
IUCN VINational Reserve
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
374 distinct species · 3 691 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 2 types (connectance 13.2%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
24,5°C
Annual rain
800mm
Moisture idx (CMI)
-0,55
Runoff
92mm/an
PET
1 786mm
AET
676mm
Mean slope
2,0°
Water table
226cm
Forest
0%
Crops
14%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)