HydroBASINS lev08 watershed · #7080490270
Bassin de Allegheny 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 2 administrative regions : Cattaraugus, Mc Kean
Sub-basin area
211,4km²
Upstream area
1 573km²
Discharge
30,43m³/s
Mean elev.
557m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Allegheny River787 km²
- Bassin de Potato Creek575 km²
2 dept-equivalent regions (GADM L2)
- 178.2 km²84.2% of basin
- CattaraugusNew York · United States33.5 km²15.8% of basin
1 intersecting protected areas
Cattaraugus County Lands
IUCN VLocal Conservation Area
0.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
626 distinct species · 4 230 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Allegheny River : 28 espèces reliées par 97 interactions GloBI sur 4 types (connectance 11.8%, filtre Serrano α=0.2). 13 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°
6,6°C
Annual rain
1 059mm
Moisture idx (CMI)
0,11
Runoff
606mm/an
PET
940mm
AET
767mm
Mean slope
9,3°
Water table
411cm
Forest
100%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)