HydroBASINS lev08 watershed · #7080251630
Bassin de Rivière Toulnustouc
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 2 administrative regions : Manicouagan, Sept-Rivières--Caniapiscau
Sub-basin area
1 199,6km²
Upstream area
1 199,7km²
Discharge
22,51m³/s
Mean elev.
608m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 908.9 km²75.5% of basin
- 295.1 km²24.5% of basin
7 intersecting protected areas
Biodiversity reserve
414.78 km² overlap
09452R055 Biological Refuge
IUCN IVBiological refuge
6.26 km² overlap
Land reserved for protected area
4.22 km² overlap
09452R039 Biological Refuge
IUCN IVBiological refuge
2.93 km² overlap
09452R049 Biological Refuge
IUCN IVBiological refuge
1.74 km² overlap
09452R028 Biological Refuge
IUCN IVBiological refuge
0.58 km² overlap
09452R043 Biological Refuge
IUCN IVBiological refuge
0.44 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
144 distinct species · 1 015 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Rivière Toulnustouc : 25 espèces reliées par 106 interactions GloBI sur 4 types (connectance 15.1%, filtre Serrano α=0.2). 13 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°
-2,7°C
Annual rain
1 070mm
Moisture idx (CMI)
0,49
Runoff
619mm/an
PET
544mm
AET
516mm
Mean slope
6,8°
Water table
128cm
Forest
88%
Crops
0%
Urban
0%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)