HydroBASINS lev08 watershed · #1081305560
Bassin de Dande
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 6 administrative regions : Ambaca, Banga, Bolongongo, Quiculungo, Quitexe +1
Sub-basin area
817,2km²
Upstream area
817,3km²
Discharge
11,7m³/s
Mean elev.
1 016m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- Bolongongo309.3 km²38.0% of basin
- 201.0 km²24.7% of basin
- 191.6 km²23.5% of basin
- 102.9 km²12.6% of basin
- Banga7.3 km²0.9% of basin
- QuitexeUíge · Angola1.7 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
265 distinct species · 801 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Dande : 7 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, 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°
22,0°C
Annual rain
1 114mm
Moisture idx (CMI)
-0,32
Runoff
430mm/an
PET
1 646mm
AET
941mm
Mean slope
6,7°
Water table
385cm
Forest
92%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)