HydroBASINS lev08 watershed · #7080453430
Bassin de Niagara 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 4 administrative regions across 2 countries : Lake Ontario, Niagara
Sub-basin area
582,6km²
Upstream area
682 646,3km²
Discharge
6 447,81m³/s
Mean elev.
121m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
4 dept-equivalent regions (GADM L2)
- 265.4 km²45.5% of basin
- Lake OntarioNew York · United States201.2 km²34.5% of basin
- NiagaraNew York · United States83.7 km²14.3% of basin
- 33.3 km²5.7% of basin
8 intersecting protected areas
Niagara River Corridor
IUCN IaWetland of International Importance (Ramsar Site)
13.76 km² overlap
Willoughby Marsh
IUCN IIIConservation Area
1.62 km² overlap
Fort George National Historic Site (Paradise Grove)
IUCN Not ApplicableNational Historic Site
0.32 km² overlap
River Realty
IUCN IVNGO/Land Trust/Agency - Fee Simple Property
0.13 km² overlap
OPG Property
IUCN VConservation Area
0.09 km² overlap
Lowery
IUCN IVNGO/Land Trust/Agency - Fee Simple Property
0.04 km² overlap
Niagara-On-The-Lake
IUCN IaNGO/Land Trust/Agency - Fee Simple Property
0.04 km² overlap
Settlement Of St. Davids
IUCN IVNGO/Land Trust/Agency - Fee Simple Property
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 660 distinct species · 693 714 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Niagara River : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 11.8%, filtre Serrano α=0.2). 6 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°
8,6°C
Annual rain
851mm
Moisture idx (CMI)
-0,02
Runoff
296mm/an
PET
866mm
AET
642mm
Mean slope
0,6°
Water table
71cm
Forest
4%
Crops
26%
Urban
13%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)