HydroBASINS lev08 watershed · #7080441640
Bassin de Chaumont 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 : Jefferson, Lake Ontario
Sub-basin area
385,1km²
Upstream area
385,1km²
Discharge
7,16m³/s
Mean elev.
97m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- JeffersonNew York · United States305.2 km²79.1% of basin
- Lake OntarioNew York · United States80.7 km²20.9% of basin
8 intersecting protected areas
Chaumont Barrens
IUCN VPreserve
8.08 km² overlap
Ashland Flats
IUCN VWildlife Management Area
7.80 km² overlap
Reserve Program
3.69 km² overlap
Three Mile Creek Barrens
IUCN VPreserve
3.43 km² overlap
Point Peninsula
IUCN VWildlife Management Area
1.24 km² overlap
Jefferson County Alvar
IUCN VPrivate Conservation Land
0.05 km² overlap
Sanford Residence
IUCN Not AssignedConservation Easement
0.02 km² overlap
New York
IUCN VState Lands
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 165 distinct species · 110 209 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Chaumont River : 22 espèces reliées par 81 interactions GloBI sur 3 types (connectance 15.3%, 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°
7,1°C
Annual rain
934mm
Moisture idx (CMI)
0,09
Runoff
587mm/an
PET
852mm
AET
646mm
Mean slope
0,7°
Water table
54cm
Forest
51%
Crops
34%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)