HydroBASINS lev08 watershed · #7080366050
Bassin de Rivière Portneuf
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 : La Jacques-Cartier, Portneuf
Sub-basin area
351,4km²
Upstream area
351,5km²
Discharge
9,2m³/s
Mean elev.
161m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 314.6 km²89.3% of basin
- 37.6 km²10.7% of basin
4 intersecting protected areas
Water fowl gathering area
0.66 km² overlap
Water fowl gathering area
0.36 km² overlap
Duchesnay Old-Growth Forest
IUCN IIIOld-growth forest
0.16 km² overlap
Old-growth forest
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 011 distinct species · 40 931 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Portneuf : 28 espèces reliées par 74 interactions GloBI sur 4 types (connectance 10.0%, 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°
4,0°C
Annual rain
1 109mm
Moisture idx (CMI)
0,32
Runoff
825mm/an
PET
754mm
AET
654mm
Mean slope
3,0°
Water table
103cm
Forest
80%
Crops
10%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)