HydroBASINS lev08 watershed · #7080458940
Bassin de South Umpqua 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 1 administrative regions : Douglas
Sub-basin area
1 355,6km²
Upstream area
4 607,3km²
Discharge
104,86m³/s
Mean elev.
405m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de South Umpqua River1956 km²
- Bassin de Cow Creek1296 km²
1 dept-equivalent regions (GADM L2)
- Douglas1358.1 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 104 distinct species · 95 537 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 South Umpqua River : 21 espèces reliées par 79 interactions GloBI sur 4 types (connectance 14.1%, filtre Serrano α=0.2). 13 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°
11,0°C
Annual rain
1 109mm
Moisture idx (CMI)
0,00
Runoff
811mm/an
PET
1 098mm
AET
625mm
Mean slope
12,6°
Water table
448cm
Forest
74%
Crops
9%
Urban
3%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)