HydroBASINS lev08 watershed · #7080449740
Bassin de 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 2 administrative regions : Douglas, Lane
Sub-basin area
1 394,6km²
Upstream area
9 505km²
Discharge
236,61m³/s
Mean elev.
343m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de South Umpqua River1356 km²
- Bassin de North Umpqua River365 km²
2 dept-equivalent regions (GADM L2)
- Douglas1397.1 km²100.0% of basin
- Lane0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 858 distinct species · 127 230 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 Umpqua River : 25 espèces reliées par 63 interactions GloBI sur 4 types (connectance 11.9%, filtre Serrano α=0.2). 8 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°
10,9°C
Annual rain
1 322mm
Moisture idx (CMI)
0,18
Runoff
923mm/an
PET
1 058mm
AET
646mm
Mean slope
12,3°
Water table
410cm
Forest
71%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)