HydroBASINS lev08 watershed · #1080015670
Bassin de Spoegrivier
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 : Namakwa
Sub-basin area
1 528,2km²
Upstream area
1 528,2km²
Discharge
0,34m³/s
Mean elev.
316m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1526.5 km²100.0% of basin
2 intersecting protected areas
Namaqua National Park
IUCN Not ReportedNational Park
269.21 km² overlap
Gys Wiese Protected Environment
IUCN Not ReportedProtected Environment
1.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 252 distinct species · 5 690 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Spoegrivier : 25 espèces reliées par 25 interactions GloBI sur 4 types (connectance 5.4%, 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°
17,1°C
Annual rain
160mm
Moisture idx (CMI)
-0,89
Runoff
9mm/an
PET
1 439mm
AET
136mm
Mean slope
5,4°
Water table
1 112cm
Forest
0%
Crops
1%
Urban
0%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)