Ontologia

HydroBASINS lev08 watershed · #7080516370

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 3 administrative regions : Armstrong, Butler, Clarion

Pfafstetter: 74269939

Sub-basin area

377,2km²

Upstream area

20 132,5km²

Discharge

384,33m³/s

Mean elev.

400m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Allegheny River46 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 391 distinct species · 28 981 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

28 981 obs · 10 cellules
Obs. / cellule
≥ 15 178
15 178–15 177
2 974–15 177
1 535–2 973
< 1 535

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 38 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Allegheny River : 26 espèces reliées par 77 interactions GloBI sur 4 types (connectance 10.4%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
77
Connectance
0.104
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,7°C

Annual rain

1 079mm

Moisture idx (CMI)

0,05

Runoff

574mm/an

PET

1 027mm

AET

814mm

Mean slope

6,3°

Water table

279cm

Forest

98%

Crops

15%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)