HydroBASINS lev08 watershed · #7080466940
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 3 administrative regions : Ontario, Seneca, Yates
Sub-basin area
564,3km²
Upstream area
2 095,5km²
Discharge
28,88m³/s
Mean elev.
189m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Keuka Lake Outlet569 km²
- Bassin · #70804724800 km²
3 dept-equivalent regions (GADM L2)
- SenecaNew York · United States340.9 km²60.3% of basin
- OntarioNew York · United States128.3 km²22.7% of basin
- YatesNew York · United States96.1 km²17.0% of basin
6 intersecting protected areas
Montezuma
IUCN VNational Wildlife Refuge
2.39 km² overlap
Reserve Program
1.66 km² overlap
Geneva Town Lands
IUCN VLocal Conservation Area
0.32 km² overlap
Northern Montezuma
IUCN VWildlife Management Area
0.15 km² overlap
Bishop
IUCN VPrivate Conservation
0.12 km² overlap
Seneca County Lands
IUCN VLocal Conservation Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 102 distinct species · 243 960 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 : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 3 types (connectance 13.4%, filtre Serrano α=0.2). 9 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°
8,6°C
Annual rain
843mm
Moisture idx (CMI)
-0,09
Runoff
498mm/an
PET
930mm
AET
689mm
Mean slope
1,0°
Water table
67cm
Forest
20%
Crops
45%
Urban
5%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)