HydroBASINS lev08 watershed · #1080018800
Bassin de Tchivale
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 : Baía Farta, Camacuio, Chongoroi
Sub-basin area
2 250,4km²
Upstream area
2 250,4km²
Discharge
8,62m³/s
Mean elev.
709m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Baía FartaBenguela · Angola1221.5 km²54.5% of basin
- CamacuioNamibe · Angola753.6 km²33.6% of basin
- ChongoroiBenguela · Angola266.8 km²11.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
727 distinct species · 1 141 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 4 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 Tchivale : 3 espèces + 1 bulle famille, 2 interactions GloBI documentées sur 2 types (connectance 33.3%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
22,3°C
Annual rain
621mm
Moisture idx (CMI)
-0,58
Runoff
142mm/an
PET
1 486mm
AET
526mm
Mean slope
6,5°
Water table
562cm
Forest
6%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)