HydroBASINS lev08 watershed · #7080417410
Bassin de Nottawasaga 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 : Grey, Lake Hurron, Simcoe
Sub-basin area
2 181,5km²
Upstream area
4 491,9km²
Discharge
26,65m³/s
Mean elev.
212m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mad River480 km²
- Bassin de Willow Creek154 km²
3 dept-equivalent regions (GADM L2)
- 1124.9 km²51.5% of basin
- 977.4 km²44.7% of basin
- 83.9 km²3.8% of basin
24 intersecting protected areas
Provincial Park
18.24 km² overlap
Conservation Area
8.72 km² overlap
Provincial Park
7.81 km² overlap
Collingwood Harbour
IUCN Not ApplicablePublic Port
2.35 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
1.73 km² overlap
Provincial Park
1.22 km² overlap
Provincial Park
0.67 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.54 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.46 km² overlap
15 more protected areassorted by overlap area
Privately Protected Area
0.32 km² overlap
NGO/Land Trust/Agency - Fee Simple Property
0.32 km² overlap
Wilson, D.
IUCN IVNGO/Land Trust/Agency - Fee Simple Property
0.27 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.25 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.22 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.20 km² overlap
Skelton
IUCN IVNGO/Land Trust/Agency - Fee Simple Property
0.18 km² overlap
Mantec And Bates
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
0.14 km² overlap
NGO/Land Trust/Agency - Fee Simple Property
0.10 km² overlap
Wood
IUCN IVNGO/Land Trust/Agency - Fee Simple Property
0.09 km² overlap
Elliot Woods Nature Reserve
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
0.07 km² overlap
Wyldewood Cove
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
0.06 km² overlap
Provincial Park
0.03 km² overlap
Duntroon Crevice Heights
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
0.03 km² overlap
Capin
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 701 distinct species · 329 796 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Nottawasaga River : 21 espèces reliées par 71 interactions GloBI sur 3 types (connectance 16.3%, filtre Serrano α=0.2). 9 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°
6,3°C
Annual rain
899mm
Moisture idx (CMI)
0,06
Runoff
226mm/an
PET
842mm
AET
617mm
Mean slope
0,8°
Water table
83cm
Forest
21%
Crops
31%
Urban
2%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)