HydroBASINS lev08 watershed · #7080199860
Bassin de Severn 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 : Kenora
Sub-basin area
2 604km²
Upstream area
14 442,5km²
Discharge
55,04m³/s
Mean elev.
293m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Severn River1079 km²
- Bassin de Cobham River327 km²
1 intersecting protected areas
Opasquia Provincial Park
IUCN IbProvincial Park
617.95 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
268 distinct species · 1 391 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Severn River : 26 espèces reliées par 127 interactions GloBI sur 5 types (connectance 13.4%, filtre Serrano α=0.2). 18 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°
-1,4°C
Annual rain
588mm
Moisture idx (CMI)
-0,03
Runoff
256mm/an
PET
604mm
AET
459mm
Mean slope
1,2°
Water table
10cm
Forest
69%
Crops
0%
Urban
0%
Protected
24%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)