HydroBASINS lev08 watershed · #7080400660
Bassin de Madawaska River
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 3 administrative regions : Lanark, Ottawa, Renfrew
Sub-basin area
642,2km²
Upstream area
8 489,9km²
Discharge
100,86m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Madawaska River1797 km²
- Bassin de Constant Creek260 km²
3 dept-equivalent regions (GADM L2)
- 466.5 km²72.5% of basin
- 168.5 km²26.2% of basin
- 8.6 km²1.3% of basin
4 intersecting protected areas
Conservation Reserve
2.46 km² overlap
NGO/Land Trust/Agency - Fee Simple Property
0.11 km² overlap
Privately Protected Area
0.11 km² overlap
NGO/Land Trust/Agency - Fee Simple Property
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 309 distinct species · 53 748 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Madawaska River : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 11.6%, 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°
5,4°C
Annual rain
830mm
Moisture idx (CMI)
0,01
Runoff
311mm/an
PET
822mm
AET
606mm
Mean slope
1,9°
Water table
116cm
Forest
88%
Crops
8%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)