HydroBASINS lev08 watershed · #1081650940
Bassin de Wit-Keirivier
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 : Chris Hani
Sub-basin area
304km²
Upstream area
4 603,2km²
Discharge
10,46m³/s
Mean elev.
898m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Indwe River1645 km²
- Bassin de Indwe River22 km²
1 dept-equivalent regions (GADM L2)
- 303.8 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
182 distinct species · 223 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 Wit-Keirivier : 16 espèces reliées par 12 interactions GloBI sur 3 types (connectance 7.0%, 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°
17,1°C
Annual rain
600mm
Moisture idx (CMI)
-0,57
Runoff
114mm/an
PET
1 387mm
AET
509mm
Mean slope
6,7°
Water table
476cm
Forest
45%
Crops
15%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)