HydroBASINS lev08 watershed · #1081548450
Bassin de Okwa
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 1 administrative regions : Ghanzi
Sub-basin area
890,3km²
Upstream area
61 071,6km²
Discharge
23,86m³/s
Mean elev.
987m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Okwa1139 km²
- Bassin de Okwa68 km²
1 intersecting protected areas
Central Kalahari
IUCN IbGame Reserve
888.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
86 distinct species · 103 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 Okwa : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 2 types (connectance 11.7%, 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°
21,2°C
Annual rain
362mm
Moisture idx (CMI)
-0,80
Runoff
14mm/an
PET
1 825mm
AET
303mm
Mean slope
0,1°
Water table
88cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)