HydroBASINS lev08 watershed · #7080488890
Bassin de Hudson 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 : Columbia, Dutchess, Greene, Ulster
Sub-basin area
89,3km²
Upstream area
26 113,8km²
Discharge
562,99m³/s
Mean elev.
38m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
4 dept-equivalent regions (GADM L2)
- ColumbiaNew York · United States34.4 km²38.5% of basin
- GreeneNew York · United States31.0 km²34.6% of basin
- UlsterNew York · United States22.3 km²24.9% of basin
- DutchessNew York · United States1.8 km²2.0% of basin
7 intersecting protected areas
Great Vly
IUCN VWildlife Management Area
0.78 km² overlap
Kalin
IUCN VEnvironmental System
0.53 km² overlap
Seward's Island
IUCN VState Conservation Area
0.29 km² overlap
Wetlands Reserve Program (WRP), Greene, NY
IUCN Not AssignedReserve Program
0.05 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not AssignedReserve Program
0.05 km² overlap
New York
IUCN VState Lands
0.04 km² overlap
Catskill State
IUCN VForest Preserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 446 distinct species · 76 457 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Hudson River : 26 espèces reliées par 78 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 13 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°
9,2°C
Annual rain
1 036mm
Moisture idx (CMI)
0,00
Runoff
705mm/an
PET
1 033mm
AET
781mm
Mean slope
2,5°
Water table
157cm
Forest
90%
Crops
13%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)