HydroBASINS lev08 watershed · #7080236570
Bassin de Columbia 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 3 administrative regions : Columbia-Shuswap, Fraser-Fort George, Thompson-Nicola
Sub-basin area
2 297,3km²
Upstream area
23 182km²
Discharge
663,15m³/s
Mean elev.
1 574m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Columbia River188 km²
- Bassin de Canoe River83 km²
3 dept-equivalent regions (GADM L2)
- 2295.0 km²99.5% of basin
- 8.5 km²0.4% of basin
- 2.7 km²0.1% of basin
2 intersecting protected areas
UPPER SEYMOUR RIVER PARK
IUCN IIA - Park
0.73 km² overlap
Ecological Reserve
0.66 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
502 distinct species · 1 503 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Columbia River : 29 espèces reliées par 93 interactions GloBI sur 5 types (connectance 9.8%, filtre Serrano α=0.2). 15 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°
0,6°C
Annual rain
832mm
Moisture idx (CMI)
0,26
Runoff
1 152mm/an
PET
615mm
AET
479mm
Mean slope
24,6°
Water table
784cm
Forest
33%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)