Ontologia

HydroBASINS lev08 watershed · #7080534920

Bassin de Youghiogheny 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 : Fayette, Westmoreland

Pfafstetter: 74269823

Sub-basin area

681,6km²

Upstream area

3 936,4km²

Discharge

73,61m³/s

Mean elev.

411m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Youghiogheny River145 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Fort Necessity

    IUCN III

    National Battlefield

    0.07 km² overlap

  • Meyers

    IUCN V

    Private Conservation

    0.00 km² overlap

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

Species present

2 657 distinct species · 100 408 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

100 408 obs · 16 cellules
Obs. / cellule
≥ 18 338
11 925–18 337
11 117–11 924
5 347–11 116
< 5 347

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Youghiogheny River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
77
Connectance
0.099
Patrimoniales
1
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°

9,7°C

Annual rain

1 080mm

Moisture idx (CMI)

0,01

Runoff

581mm/an

PET

1 063mm

AET

831mm

Mean slope

6,2°

Water table

265cm

Forest

80%

Crops

16%

Urban

5%

Protected

0%

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