HydroBASINS lev08 watershed · #1081402480
Bassin de Tunda
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 : Lubango, Quilengues
Sub-basin area
1 171,2km²
Upstream area
1 171,3km²
Discharge
7,24m³/s
Mean elev.
1 201m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 864.7 km²74.1% of basin
- 302.2 km²25.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
277 distinct species · 346 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Tunda : 9 espèces reliées par 6 interactions GloBI sur 2 types (connectance 16.7%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
21,0°C
Annual rain
961mm
Moisture idx (CMI)
-0,42
Runoff
176mm/an
PET
1 672mm
AET
812mm
Mean slope
5,2°
Water table
428cm
Forest
45%
Crops
1%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)