HydroBASINS lev08 watershed · #1081660110
Bassin de Breede River
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 : Cape Winelands, Overberg
Sub-basin area
389km²
Upstream area
10 001km²
Discharge
53,64m³/s
Mean elev.
247m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sonderend River2231 km²
- Bassin de Breede River703 km²
2 dept-equivalent regions (GADM L2)
- 377.3 km²97.0% of basin
- 11.6 km²3.0% of basin
4 intersecting protected areas
Cape Floral Region Protected Areas
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
83.65 km² overlap
Marloth Nature Reserve
IUCN Not ReportedForest Nature Reserve
55.76 km² overlap
Bontebok National Park
IUCN Not ReportedNational Park
31.09 km² overlap
Langeberg-Wes Mountain Catchment Area
IUCN Not ReportedMountain Catchment Area
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 829 distinct species · 74 011 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 Breede River : 36 espèces reliées par 42 interactions GloBI sur 4 types (connectance 5.1%, 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°
17,4°C
Annual rain
530mm
Moisture idx (CMI)
-0,61
Runoff
54mm/an
PET
1 377mm
AET
451mm
Mean slope
7,0°
Water table
624cm
Forest
19%
Crops
43%
Urban
2%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)