HydroBASINS lev08 watershed · #7080039870
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 6 administrative regions : Bergen, Bronx, Hudson, New York, Rockland +1
Sub-basin area
372,3km²
Upstream area
34 791,5km²
Discharge
746,45m³/s
Mean elev.
61m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Croton River998 km²
- Bassin de Hudson River625 km²
6 dept-equivalent regions (GADM L2)
- WestchesterNew York · United States192.5 km²51.6% of basin
- RocklandNew York · United States64.1 km²17.2% of basin
- 53.1 km²14.2% of basin
- New YorkNew York · United States29.4 km²7.9% of basin
- BronxNew York · United States20.3 km²5.4% of basin
- 13.4 km²3.6% of basin
18 intersecting protected areas
Palisades
IUCN VPark
7.77 km² overlap
Marine Protected Area
4.01 km² overlap
New York
IUCN VState Lands
0.71 km² overlap
Piermont Marsh Tidal
IUCN VWetland
0.27 km² overlap
East Irvington
IUCN VNature Preserve
0.17 km² overlap
Glenville Woods
IUCN VLocal Conservation Area
0.15 km² overlap
Turner Swamp
IUCN VSanctuary
0.13 km² overlap
Ossining
IUCN VNature Preserve
0.05 km² overlap
Njcf #023 / 642
IUCN Not AssignedConservation Easement
0.05 km² overlap
9 more protected areassorted by overlap area
Orangetown Town Lands
IUCN VState Conservation Area
0.04 km² overlap
Norwood Central Woods
IUCN VConservation Area
0.03 km² overlap
Park
0.03 km² overlap
Raoul Wallenberg
IUCN VForest
0.02 km² overlap
Conservation Area
IUCN VConservation Area
0.01 km² overlap
Lamont
IUCN VNature Sanctuary
0.01 km² overlap
Westchester County Lands
IUCN VLocal Conservation Area
0.01 km² overlap
Muscota Marsh
IUCN VLocal Conservation Area
0.01 km² overlap
Preserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 413 distinct species · 4 452 994 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 Hudson River : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 113 interactions GloBI sur 4 types (connectance 11.9%, 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°
11,2°C
Annual rain
1 190mm
Moisture idx (CMI)
0,17
Runoff
749mm/an
PET
992mm
AET
817mm
Mean slope
3,7°
Water table
261cm
Forest
42%
Crops
0%
Urban
65%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)