HydroBASINS lev08 watershed · #7080484830
Bassin de Otselic 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 7 administrative regions : Broome, Chenango, Cortland, Madison, Onondaga +2
Sub-basin area
1 915,3km²
Upstream area
1 915,4km²
Discharge
38,01m³/s
Mean elev.
453m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- CortlandNew York · United States1104.9 km²57.6% of basin
- ChenangoNew York · United States265.1 km²13.8% of basin
- BroomeNew York · United States254.1 km²13.2% of basin
- MadisonNew York · United States155.7 km²8.1% of basin
- OnondagaNew York · United States122.2 km²6.4% of basin
- TiogaNew York · United States16.4 km²0.9% of basin
- TompkinsNew York · United States0.2 km²0.0% of basin
30 intersecting protected areas
Cuyler Hill
IUCN IbState Forest
22.26 km² overlap
Morgan Hill
IUCN IbState Forest
19.89 km² overlap
Lincklaen
IUCN IbState Forest
18.75 km² overlap
Taylor Valley
IUCN IbState Forest
18.67 km² overlap
Muller Hill
IUCN IbState Forest
12.39 km² overlap
Tuller Hill
IUCN IbState Forest
9.87 km² overlap
College
9.16 km² overlap
New York
IUCN VState Lands
8.51 km² overlap
Hoxie Gorge
IUCN IbState Forest
8.49 km² overlap
21 more protected areassorted by overlap area
Perkins Pond
IUCN IbState Forest
7.26 km² overlap
Labrador Hollow
IUCN VUnique Area
5.97 km² overlap
Baker School House
IUCN IbState Forest
5.09 km² overlap
Beaver Dam
IUCN IbState Forest
4.54 km² overlap
Mariposa
IUCN IbState Forest
4.03 km² overlap
Gee Brook
IUCN IbState Forest
3.56 km² overlap
Beaver Meadow
IUCN IbState Forest
3.29 km² overlap
Pharsalia Woods
IUCN IbState Forest
3.27 km² overlap
Dog Hollow
IUCN IbState Forest
2.95 km² overlap
Kennedy
IUCN IbState Forest
2.72 km² overlap
Kettlebail
IUCN IbState Forest
2.33 km² overlap
Pharsalia
IUCN VWildlife Management Area
2.31 km² overlap
Reforestation Area
IUCN VState Conservation Area
2.15 km² overlap
Reserve Program
0.63 km² overlap
Grigg's Gulf
IUCN IbState Forest
0.61 km² overlap
Reserve Program
0.39 km² overlap
Reserve Program
0.20 km² overlap
Reserve Program
0.13 km² overlap
Lake
0.13 km² overlap
Madison County Lands
IUCN VLocal Conservation Area
0.13 km² overlap
Reserve Program
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 810 distinct species · 490 552 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Otselic River : 21 espèces reliées par 67 interactions GloBI sur 3 types (connectance 13.5%, 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°
7,0°C
Annual rain
1 042mm
Moisture idx (CMI)
0,14
Runoff
632mm/an
PET
890mm
AET
725mm
Mean slope
5,9°
Water table
365cm
Forest
71%
Crops
16%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)