HydroBASINS lev08 watershed · #7080455950
Bassin de Grand 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 2 administrative regions : Waterloo, Wellington
Sub-basin area
374,1km²
Upstream area
2 579,6km²
Discharge
17,6m³/s
Mean elev.
334m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Grand River1391 km²
- Bassin de Conestogo River815 km²
2 dept-equivalent regions (GADM L2)
- 342.4 km²91.4% of basin
- 32.4 km²8.6% of basin
20 intersecting protected areas
Huron Natural Area
IUCN IVMunicipal Heritage/Natural Area
0.96 km² overlap
Homer Watson Park
IUCN IVMunicipal Heritage/Natural Area
0.60 km² overlap
Doon South Creek
IUCN IVMunicipal Heritage/Natural Area
0.54 km² overlap
Idlewood Park
IUCN IVMunicipal Heritage/Natural Area
0.48 km² overlap
Tilt's Bush
IUCN IVMunicipal Heritage/Natural Area
0.39 km² overlap
Municipal Heritage/Natural Area
0.34 km² overlap
Lackner Woods
IUCN IVMunicipal Heritage/Natural Area
0.31 km² overlap
Steckle Woods
IUCN IVMunicipal Heritage/Natural Area
0.30 km² overlap
Municipal Heritage/Natural Area
0.27 km² overlap
11 more protected areassorted by overlap area
Pinnacle Hill Natural Area
IUCN IVMunicipal Heritage/Natural Area
0.25 km² overlap
Natchez Woods
IUCN IVMunicipal Heritage/Natural Area
0.23 km² overlap
Topper Woods
IUCN IVMunicipal Heritage/Natural Area
0.23 km² overlap
Laurentian Wetland
IUCN IVMunicipal Heritage/Natural Area
0.17 km² overlap
Municipal Heritage/Natural Area
0.17 km² overlap
Borden Wetlands
IUCN IVMunicipal Heritage/Natural Area
0.16 km² overlap
Municipal Heritage/Natural Area
0.12 km² overlap
Municipal Heritage/Natural Area
0.12 km² overlap
Lakeside Park
IUCN IVMunicipal Heritage/Natural Area
0.09 km² overlap
Kolb Park
IUCN IVMunicipal Heritage/Natural Area
0.09 km² overlap
Briarfield Park
IUCN IVMunicipal Heritage/Natural Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 621 distinct species · 1 085 578 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 Grand River : 25 espèces reliées par 85 interactions GloBI sur 4 types (connectance 13.5%, 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°
6,6°C
Annual rain
925mm
Moisture idx (CMI)
0,08
Runoff
213mm/an
PET
854mm
AET
655mm
Mean slope
1,3°
Water table
101cm
Forest
0%
Crops
41%
Urban
43%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)