HydroBASINS lev08 watershed · #7080184060
Bassin de la Grande Rivière
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 : Nord-du-Québec
Sub-basin area
1 067,9km²
Upstream area
63 129,2km²
Discharge
1 246m³/s
Mean elev.
223m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #7080181370450 km²
- Bassin · #708018149062 km²
1 dept-equivalent regions (GADM L2)
- 1072.5 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
291 distinct species · 1 804 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 la Grande Rivière : 21 espèces reliées par 114 interactions GloBI sur 4 types (connectance 16.2%, filtre Serrano α=0.2). 17 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°
-3,6°C
Annual rain
705mm
Moisture idx (CMI)
0,32
Runoff
596mm/an
PET
480mm
AET
411mm
Mean slope
1,9°
Water table
47cm
Forest
54%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)