HydroBASINS lev08 watershed · #7080523400
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 1 administrative regions : Armstrong
Sub-basin area
154,4km²
Upstream area
24 109,8km²
Discharge
467,4m³/s
Mean elev.
345m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Crooked Creek759 km²
- Bassin de Allegheny River68 km²
1 dept-equivalent regions (GADM L2)
- 154.6 km²100.0% of basin
1 intersecting protected areas
Nicholson Island
IUCN VPrivate Conservation
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 021 distinct species · 58 038 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 : 27 espèces reliées par 78 interactions GloBI sur 3 types (connectance 10.5%, 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°
9,2°C
Annual rain
1 044mm
Moisture idx (CMI)
0,00
Runoff
561mm/an
PET
1 043mm
AET
812mm
Mean slope
5,3°
Water table
294cm
Forest
87%
Crops
17%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)