HydroBASINS lev08 watershed · #7080462240
Bassin de Seneca 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 : Cayuga, Cortland, Onondaga, Seneca, Tompkins +1
Sub-basin area
1 748,5km²
Upstream area
8 262,6km²
Discharge
129,33m³/s
Mean elev.
239m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Erie Canal315 km²
- Bassin de Seneca River33 km²
6 dept-equivalent regions (GADM L2)
- CayugaNew York · United States1023.8 km²58.5% of basin
- OnondagaNew York · United States445.0 km²25.4% of basin
- WayneNew York · United States183.0 km²10.5% of basin
- TompkinsNew York · United States69.1 km²3.9% of basin
- CortlandNew York · United States23.8 km²1.4% of basin
- SenecaNew York · United States6.8 km²0.4% of basin
19 intersecting protected areas
Northern Montezuma
IUCN VWildlife Management Area
29.47 km² overlap
Bear Swamp
IUCN IbState Forest
13.72 km² overlap
Summer Hill
IUCN IbState Forest
10.72 km² overlap
Montezuma
IUCN VNational Wildlife Refuge
8.86 km² overlap
Three Rivers
IUCN VWildlife Management Area
5.06 km² overlap
Frozen Ocean
IUCN IbState Forest
3.04 km² overlap
New York
IUCN VState Lands
1.13 km² overlap
Reserve Program
0.92 km² overlap
High Vista
IUCN VPrivate Conservation
0.58 km² overlap
10 more protected areassorted by overlap area
Carncross Salt Pond
IUCN VPreserve
0.43 km² overlap
Reserve Program
0.21 km² overlap
Bahar
IUCN VPrivate Conservation
0.21 km² overlap
Carpenter Falls
IUCN VUnique Area
0.15 km² overlap
Reserve Program
0.13 km² overlap
Cross Lake Islands
IUCN VWildlife Management Area
0.11 km² overlap
Sennett Town Lands
IUCN VLocal Conservation Area
0.11 km² overlap
Owasco Flats
IUCN VWildlife Management Area
0.05 km² overlap
Reserve Program
0.04 km² overlap
Brutus Town Lands
IUCN VState Conservation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 961 distinct species · 849 307 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Seneca River : 24 espèces reliées par 71 interactions GloBI sur 3 types (connectance 11.9%, 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°
8,1°C
Annual rain
974mm
Moisture idx (CMI)
0,08
Runoff
604mm/an
PET
896mm
AET
706mm
Mean slope
2,5°
Water table
164cm
Forest
66%
Crops
27%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)