HydroBASINS lev08 watershed · #1080014930
Bassin · #1080014930
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 : Eden
Sub-basin area
380,6km²
Upstream area
380,6km²
Discharge
0,04m³/s
Mean elev.
150m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 370.5 km²97.4% of basin
8 intersecting protected areas
Die Duine Private Nature Reserve
IUCN Not ReportedNature Reserve
6.81 km² overlap
Vergaderingskop Private Nature Reserve
IUCN Not ReportedNature Reserve
2.35 km² overlap
Geelkrans Provincial Nature Reserve
IUCN Not ReportedNature Reserve
2.27 km² overlap
Pauline Bohnen Nature Reserve
IUCN Not ReportedNature Reserve
2.17 km² overlap
Stilbaai Marine Protected Area
IUCN Not ReportedMarine Protected Area
2.02 km² overlap
Geelkrans Nature Reserve
IUCN Not ReportedForest Nature Reserve
1.85 km² overlap
Groenkant Private Nature Reserve
IUCN Not ReportedNature Reserve
1.54 km² overlap
Orca Private Nature Reserve
IUCN Not ReportedNature Reserve
0.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 241 distinct species · 41 768 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 · #1080014930 : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 4.4%, filtre Serrano α=0.2). 3 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°
16,9°C
Annual rain
495mm
Moisture idx (CMI)
-0,59
Runoff
42mm/an
PET
1 220mm
AET
422mm
Mean slope
4,0°
Water table
926cm
Forest
90%
Crops
40%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)