HydroBASINS lev08 watershed · #7080270880
Bassin de Rivière Gravel
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 : Sept-Rivières--Caniapiscau
Sub-basin area
967,6km²
Upstream area
967,6km²
Discharge
26,7m³/s
Mean elev.
521m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 971.1 km²100.0% of basin
10 intersecting protected areas
Proposed biodiversity reserve
19.40 km² overlap
09451R114 Biological Refuge
IUCN IVBiological refuge
3.63 km² overlap
09452R038 Biological Refuge
IUCN IVBiological refuge
3.62 km² overlap
09451R068 Biological Refuge
IUCN IVBiological refuge
2.65 km² overlap
09452R036 Biological Refuge
IUCN IVBiological refuge
1.53 km² overlap
09451R317 Biological Refuge
IUCN IVBiological refuge
1.52 km² overlap
09451R116 Biological Refuge
IUCN IVBiological refuge
1.17 km² overlap
09451R318 Biological Refuge
IUCN IVBiological refuge
1.16 km² overlap
09451R115 Biological Refuge
IUCN IVBiological refuge
1.14 km² overlap
1 more protected areassorted by overlap area
09451R071 Biological Refuge
IUCN IVBiological refuge
1.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
70 distinct species · 164 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 Rivière Gravel : 13 espèces reliées par 25 interactions GloBI sur 3 types (connectance 14.6%, filtre Serrano α=0.2). 6 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°
-1,8°C
Annual rain
1 099mm
Moisture idx (CMI)
0,49
Runoff
796mm/an
PET
556mm
AET
527mm
Mean slope
7,2°
Water table
159cm
Forest
80%
Crops
0%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)