HydroBASINS lev08 watershed · #1081649000
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
290,8km²
Upstream area
1 508,5km²
Discharge
2,41m³/s
Mean elev.
1 090m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Wit-Keirivier1033 km²
- Bassin de Wit-Keirivier185 km²
1 dept-equivalent regions (GADM L2)
- 290.6 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
155 distinct species · 271 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 : 35 espèces reliées par 35 interactions GloBI sur 4 types (connectance 4.3%, filtre Serrano α=0.2). 6 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°
16,5°C
Annual rain
555mm
Moisture idx (CMI)
-0,61
Runoff
74mm/an
PET
1 426mm
AET
471mm
Mean slope
7,9°
Water table
564cm
Forest
8%
Crops
10%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)