HydroBASINS lev08 watershed · #1081632230
Bassin de Karkloof
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 : Umgungundlovu
Sub-basin area
371,8km²
Upstream area
371,8km²
Discharge
1,2m³/s
Mean elev.
1 306m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 371.4 km²100.0% of basin
5 intersecting protected areas
Karkloof Nature Reserve
IUCN Not ReportedNature Reserve
19.82 km² overlap
Denleigh Protected Environment
IUCN Not ReportedProtected Environment
4.28 km² overlap
Mount Gilboa Nature Reserve
IUCN Not ReportedNature Reserve
1.41 km² overlap
Mbona Private Nature Reserve
IUCN Not ReportedNature Reserve
0.59 km² overlap
Tweefontein Nature Reserve
IUCN Not ReportedNature Reserve
0.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 692 distinct species · 80 636 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 Karkloof : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 5 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°
14,9°C
Annual rain
869mm
Moisture idx (CMI)
-0,33
Runoff
104mm/an
PET
1 301mm
AET
737mm
Mean slope
7,1°
Water table
514cm
Forest
76%
Crops
8%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)