HydroBASINS lev08 watershed · #1081637430
Bassin de Ongersrivier
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 : Pixley ka Seme
Sub-basin area
2 513,5km²
Upstream area
15 817,4km²
Discharge
2,53m³/s
Mean elev.
1 125m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ongersrivier1871 km²
- Bassin · #1081641240756 km²
1 dept-equivalent regions (GADM L2)
- 2510.9 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
570 distinct species · 4 630 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 Ongersrivier : 32 espèces reliées par 51 interactions GloBI sur 5 types (connectance 6.2%, filtre Serrano α=0.2). 9 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°
17,0°C
Annual rain
259mm
Moisture idx (CMI)
-0,84
Runoff
8mm/an
PET
1 605mm
AET
218mm
Mean slope
1,2°
Water table
358cm
Forest
0%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)