HydroBASINS lev08 watershed · #7080314550
Bassin de Ruisseau Ptarmigan
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 : Le Domaine-du-Roy, Maria-Chapdelaine
Sub-basin area
141,9km²
Upstream area
21 992,8km²
Discharge
466,65m³/s
Mean elev.
99m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rivière Ticouapé685 km²
- Bassin de Rivière Mistassini207 km²
2 dept-equivalent regions (GADM L2)
- 93.0 km²65.3% of basin
- 49.3 km²34.7% of basin
2 intersecting protected areas
Water fowl gathering area
8.26 km² overlap
Water fowl gathering area
0.32 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
282 distinct species · 6 337 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Ruisseau Ptarmigan : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 3 types (connectance 15.6%, filtre Serrano α=0.2). 11 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°
2,3°C
Annual rain
820mm
Moisture idx (CMI)
0,15
Runoff
510mm/an
PET
698mm
AET
557mm
Mean slope
0,1°
Water table
0cm
Forest
4%
Crops
7%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)