HydroBASINS lev08 watershed · #7080489130
Bassin de Chemung 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 3 administrative regions : Chemung, Schuyler, Steuben
Sub-basin area
656,6km²
Upstream area
5 803,2km²
Discharge
72,13m³/s
Mean elev.
417m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Cohocton River1562 km²
- Bassin de Tioga River45 km²
3 dept-equivalent regions (GADM L2)
- ChemungNew York · United States427.6 km²65.0% of basin
- SteubenNew York · United States213.2 km²32.4% of basin
- SchuylerNew York · United States16.9 km²2.6% of basin
6 intersecting protected areas
Steege Hill
IUCN VPrivate Conservation
3.28 km² overlap
Open Space
IUCN VLocal Conservation Area
1.12 km² overlap
Plymouth Woods
IUCN VPrivate Conservation
0.38 km² overlap
Steuben County Lands
IUCN VLocal Conservation Area
0.20 km² overlap
Frenchmans Bluff
IUCN VPreserve
0.15 km² overlap
Reserve Program
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 995 distinct species · 290 464 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 Chemung River : 21 espèces reliées par 75 interactions GloBI sur 3 types (connectance 14.2%, 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°
7,6°C
Annual rain
854mm
Moisture idx (CMI)
-0,11
Runoff
408mm/an
PET
965mm
AET
704mm
Mean slope
6,3°
Water table
399cm
Forest
75%
Crops
11%
Urban
10%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)