HydroBASINS lev08 watershed · #7080431600
Bassin de Oswegatchie 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 1 administrative regions : Saint Lawrence
Sub-basin area
74,9km²
Upstream area
1 711,1km²
Discharge
40,41m³/s
Mean elev.
192m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
1 dept-equivalent regions (GADM L2)
- Saint LawrenceNew York · United States75.1 km²100.0% of basin
2 intersecting protected areas
Reserve Program
1.39 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), St. Lawrence, NY
IUCN VConservation Easement
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
208 distinct species · 1 203 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Oswegatchie River : 33 espèces reliées par 80 interactions GloBI sur 4 types (connectance 8.1%, filtre Serrano α=0.2). 12 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
971mm
Moisture idx (CMI)
0,09
Runoff
606mm/an
PET
880mm
AET
681mm
Mean slope
2,5°
Water table
127cm
Forest
100%
Crops
12%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)