HydroBASINS lev08 watershed · #8080163690
Bassin de Back 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 : Keewatin
Sub-basin area
178,4km²
Upstream area
42 524,1km²
Discharge
178,32m³/s
Mean elev.
165m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de McKinley River744 km²
- Bassin de McKinley River110 km²
1 intersecting protected areas
Thelon Wildlife Sanctuary
IUCN IbWildlife Sanctuary
60.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
41 distinct species · 58 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Back River : 14 espèces reliées par 25 interactions GloBI sur 2 types (connectance 16.3%, filtre Serrano α=0.2). 4 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°
-13,1°C
Annual rain
180mm
Moisture idx (CMI)
-0,34
Runoff
146mm/an
PET
270mm
AET
178mm
Mean slope
2,3°
Water table
86cm
Forest
0%
Crops
0%
Urban
0%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)