HydroBASINS lev08 watershed · #1081350160
Bassin de Ruvuma 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 : Mbinga, Songea Rural, Songea Urban
Sub-basin area
1 835,3km²
Upstream area
1 835,3km²
Discharge
19,9m³/s
Mean elev.
1 036m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1011.6 km²55.3% of basin
- 510.8 km²27.9% of basin
- 305.6 km²16.7% of basin
2 intersecting protected areas
Matogoro East
IUCN Not ReportedForest Reserve
34.41 km² overlap
Matogoro West
IUCN Not ReportedForest Reserve
11.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
409 distinct species · 1 098 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Ruvuma River : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 5 types (connectance 5.5%, filtre Serrano α=0.2). 7 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°
21,3°C
Annual rain
1 195mm
Moisture idx (CMI)
-0,21
Runoff
334mm/an
PET
1 520mm
AET
883mm
Mean slope
4,4°
Water table
229cm
Forest
56%
Crops
8%
Urban
4%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)