HydroBASINS lev08 watershed · #1080015180
Bassin · #1080015180
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 : Overberg
Sub-basin area
68,4km²
Upstream area
68,6km²
Discharge
0,77m³/s
Mean elev.
174m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 64.3 km²94.0% of basin
5 intersecting protected areas
Cape Floral Region Protected Areas
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
18.76 km² overlap
Hottentots-Holland Mountain Catchment Area
IUCN Not ReportedMountain Catchment Area
9.99 km² overlap
Wetland of International Importance (Ramsar Site)
5.05 km² overlap
Rooisand Provincial Nature Reserve
IUCN Not ReportedNature Reserve
2.93 km² overlap
Kleinmond Coastal Nature Reserve
IUCN Not ReportedNature Reserve
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 675 distinct species · 58 900 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 · #1080015180 : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 4.5%, 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
744mm
Moisture idx (CMI)
-0,31
Runoff
358mm/an
PET
1 076mm
AET
600mm
Mean slope
8,8°
Water table
539cm
Forest
16%
Crops
17%
Urban
7%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)