HydroBASINS lev08 watershed · #7080500700
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 : Forest, Warren
Sub-basin area
281,7km²
Upstream area
9 287,4km²
Discharge
168,74m³/s
Mean elev.
487m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Brokenstraw Creek864 km²
- Bassin de Allegheny River71 km²
2 dept-equivalent regions (GADM L2)
- Warren267.8 km²94.9% of basin
- 14.3 km²5.1% of basin
5 intersecting protected areas
Allegheny, Pennsylvania
IUCN VWild and Scenic River
35.83 km² overlap
Allegheny Islands
IUCN IbWilderness
1.04 km² overlap
Anders Run
IUCN VINatural Area
0.40 km² overlap
Hickory Creek
IUCN IbWilderness
0.08 km² overlap
Trunkeyville
IUCN VAccess
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 057 distinct species · 25 526 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 : 33 espèces reliées par 83 interactions GloBI sur 4 types (connectance 9.6%, 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°
7,6°C
Annual rain
1 155mm
Moisture idx (CMI)
0,16
Runoff
580mm/an
PET
965mm
AET
802mm
Mean slope
7,7°
Water table
421cm
Forest
100%
Crops
1%
Urban
0%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)