HydroBASINS lev08 watershed · #1081590840
Bassin de Apies
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 3 administrative regions : Bojanala, City of Tshwane, Waterberg
Sub-basin area
1 155,8km²
Upstream area
1 156,1km²
Discharge
0,64m³/s
Mean elev.
1 200m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- City of Tshwane908.1 km²78.7% of basin
- 244.8 km²21.2% of basin
- 0.6 km²0.1% of basin
11 intersecting protected areas
Sterkwater Private Nature Reserve
IUCN Not ReportedNature Reserve
52.12 km² overlap
De Onderstepoort Nature Reserve
IUCN Not ReportedNature Reserve
29.71 km² overlap
Gelderland Private Nature Reserve
IUCN Not ReportedNature Reserve
14.68 km² overlap
Magaliesberg Protected Natural Environment
IUCN Not ReportedProtected Environment
9.54 km² overlap
Groenkloof Nature Reserve
IUCN Not ReportedNature Reserve
5.16 km² overlap
Klapperkop Nature Reserve
IUCN Not ReportedNature Reserve
2.38 km² overlap
Voortrekker Monument Nature Reserve
IUCN Not ReportedNature Reserve
2.37 km² overlap
Wonderboom Nature Reserve
IUCN Not ReportedNature Reserve
1.25 km² overlap
Derdepoort Nature Reserve
IUCN Not ReportedNature Reserve
0.86 km² overlap
2 more protected areassorted by overlap area
Austin Roberts Bird Sanctuary
IUCN Not ReportedNature Reserve
0.11 km² overlap
Groenkloof National Park
IUCN Not ReportedNational Park
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 804 distinct species · 607 050 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Apies : 29 espèces reliées par 25 interactions GloBI sur 3 types (connectance 5.4%, filtre Serrano α=0.2). 2 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°
18,2°C
Annual rain
660mm
Moisture idx (CMI)
-0,59
Runoff
19mm/an
PET
1 622mm
AET
557mm
Mean slope
1,6°
Water table
443cm
Forest
3%
Crops
6%
Urban
50%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)