HydroBASINS lev08 watershed · #1080014690
Bassin de Keurboomsrivier
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 : Cacadu, Eden
Sub-basin area
1 120,9km²
Upstream area
1 121km²
Discharge
5,82m³/s
Mean elev.
491m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1110.9 km²99.1% of basin
- 8.8 km²0.8% of basin
9 intersecting protected areas
Garden Route National Park
IUCN Not ReportedNational Park
407.08 km² overlap
Cape Floral Region Protected Areas
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
404.04 km² overlap
Whiskey Creek Nature Reserve
IUCN Not ReportedForest Nature Reserve
20.55 km² overlap
Keurbooms River Nature Reserve
IUCN Not ReportedNature Reserve
8.83 km² overlap
Wadrift Private Nature Reserve
IUCN Not ReportedNature Reserve
7.99 km² overlap
Ysternek Nature Reserve
IUCN Not ReportedForest Nature Reserve
7.67 km² overlap
Bobbejaanskloof Private Nature Reserve
IUCN Not ReportedNature Reserve
1.51 km² overlap
Kiaruna Private Nature Reserve
IUCN Not ReportedNature Reserve
0.13 km² overlap
Fynbos Ridge Private Nature Reserve
IUCN Not ReportedNature Reserve
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 850 distinct species · 49 721 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Keurboomsrivier : 37 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 5 types (connectance 4.0%, 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°
15,7°C
Annual rain
880mm
Moisture idx (CMI)
-0,24
Runoff
149mm/an
PET
1 157mm
AET
748mm
Mean slope
13,7°
Water table
693cm
Forest
65%
Crops
5%
Urban
0%
Protected
37%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)