HydroBASINS lev08 watershed · #1081295600
Bassin de Great Ruaha
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 : Kilolo, Kilombero, Kilosa
Sub-basin area
679,8km²
Upstream area
81 699km²
Discharge
110,06m³/s
Mean elev.
1 066m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Great Ruaha768 km²
- Bassin de Great Ruaha708 km²
3 dept-equivalent regions (GADM L2)
- 402.1 km²59.4% of basin
- 159.5 km²23.6% of basin
- 115.4 km²17.0% of basin
2 intersecting protected areas
National Park
493.78 km² overlap
Msimba
IUCN Not AssignedVillage Land Forest Reserve
1.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
968 distinct species · 2 538 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Great Ruaha : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 2 types (connectance 6.0%, filtre Serrano α=0.2). 3 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°
21,1°C
Annual rain
1 331mm
Moisture idx (CMI)
-0,07
Runoff
249mm/an
PET
1 427mm
AET
916mm
Mean slope
15,0°
Water table
581cm
Forest
80%
Crops
4%
Urban
2%
Protected
74%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)