HydroBASINS lev08 watershed · #7080016810
Bassin de Southgate 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 4 administrative regions : Cariboo, Comox-Strathcona, Powell River, Squamish-Lillooet
Sub-basin area
1 966,6km²
Upstream area
1 966,6km²
Discharge
70,56m³/s
Mean elev.
1 718m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1914.8 km²97.0% of basin
- 21.8 km²1.1% of basin
- Powell River20.1 km²1.0% of basin
- 16.9 km²0.9% of basin
5 intersecting protected areas
BISHOP RIVER PARK
IUCN IbA - Park
189.34 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
37.54 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
30.79 km² overlap
TS'IL?OS PARK
IUCN IbA - Park
10.37 km² overlap
Sea To Sky Wildland Areas
IUCN Not ApplicableSea To Sky Wildland Areas
1.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
159 distinct species · 497 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Southgate River : 25 espèces reliées par 51 interactions GloBI sur 5 types (connectance 7.7%, filtre Serrano α=0.2). 12 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
768mm
Moisture idx (CMI)
0,21
Runoff
1 077mm/an
PET
599mm
AET
453mm
Mean slope
24,9°
Water table
888cm
Forest
9%
Crops
0%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)