HydroBASINS lev08 watershed · #1081604440
Bassin de Blesbokspruit
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 2 administrative regions : Ekurhuleni, Gert Sibande
Sub-basin area
458,8km²
Upstream area
1 125,6km²
Discharge
1,41m³/s
Mean elev.
1 606m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Blesbokspruit150 km²
- Bassin de Blesbokspruit106 km²
2 dept-equivalent regions (GADM L2)
- Ekurhuleni457.9 km²100.0% of basin
- 0.0 km²0.0% of basin
5 intersecting protected areas
Marievale Nature Reserve
IUCN Not ReportedNature Reserve
14.02 km² overlap
Blesbokspruit
IUCN IVWetland of International Importance (Ramsar Site)
13.73 km² overlap
Daisy Private Nature Reserve
IUCN Not ReportedNature Reserve
6.03 km² overlap
Voortrekker Private Nature Reserve
IUCN Not ReportedNature Reserve
4.12 km² overlap
Nicolaas Private Nature Reserve
IUCN Not ReportedNature Reserve
0.98 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
726 distinct species · 277 044 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Blesbokspruit : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 5.8%, 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°
15,5°C
Annual rain
690mm
Moisture idx (CMI)
-0,53
Runoff
36mm/an
PET
1 468mm
AET
584mm
Mean slope
1,5°
Water table
339cm
Forest
0%
Crops
28%
Urban
15%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)