HydroBASINS lev08 watershed · #7080289690
Bassin de Rivière Greaves
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 : Le Fjord-du-Saguenay
Sub-basin area
316,9km²
Upstream area
4 612,6km²
Discharge
105m³/s
Mean elev.
489m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rivière aux Chutes1691 km²
- Bassin de Rivière aux Sables709 km²
1 dept-equivalent regions (GADM L2)
- 317.9 km²100.0% of basin
2 intersecting protected areas
09751R314 Biological Refuge
IUCN IVBiological refuge
3.00 km² overlap
09751R039 Biological Refuge
IUCN IVBiological refuge
0.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
51 distinct species · 54 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Greaves : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 2 types (connectance 10.1%, filtre Serrano α=0.2). 3 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°
-0,2°C
Annual rain
1 006mm
Moisture idx (CMI)
0,36
Runoff
648mm/an
PET
643mm
AET
574mm
Mean slope
4,3°
Water table
77cm
Forest
68%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)