HydroBASINS lev08 watershed · #1081203530
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 : Kibwezi East, Kitui South
Sub-basin area
90,8km²
Upstream area
22 918,7km²
Discharge
61,85m³/s
Mean elev.
602m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Athi-Galana-Sabaki river959 km²
- Bassin · #1081202220575 km²
2 dept-equivalent regions (GADM L2)
- Kibwezi EastMakueni · Kenya58.4 km²64.6% of basin
- 32.0 km²35.4% of basin
2 intersecting protected areas
Ngai Ndethia
IUCN VINational Reserve
57.39 km² overlap
Tsavo East
IUCN IINational Park
31.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
253 distinct species · 1 288 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 10 interactions GloBI sur 2 types (connectance 12.8%, 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
747mm
Moisture idx (CMI)
-0,58
Runoff
100mm/an
PET
1 794mm
AET
630mm
Mean slope
2,6°
Water table
247cm
Forest
0%
Crops
8%
Urban
3%
Protected
97%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)