Ontologia

County · USA

Allegheny

United States

DfaCold, no dry season, hot summer(100 %)

Species observed

9 569

Observations

2 548 628

Area

1 924,6km²

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Allegheny : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
78
Connectance
0.091
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

9 569 distinct species · 2 548 628 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 548 628 obs · 53 cellules
Obs. / cellule
≥ 267 460
116 001–267 459
49 537–116 000
20 869–49 536
< 20 869

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

Climate

Mean T°

10,9°C

Annual rain

1 039mm

Warmest m°

27,6°C

Coldest m°

-5,6°C

Elevation: 320 m on average (min 222 m, max 383 m)

Bioclimatic detailsExpert
Annual mean temp.
10,9°C
Annual rain
1 039mm
Warmest month
27,6°C
Coldest month
-5,6°C
Mean alt.
320m
Min
222m
Max
383m
Std. dev.
33m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(100 %)Cold

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,5

Org. C

36,4g/kg

Clay

31,2%

Sand

15,4%

Silt

53,4%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
78,6g/kg
Clay
29,9%
Sand
15,7%
Silt
54,5%
5–15 cm
pH H₂O
5,5
Org. C
20,9g/kg
Clay
29,8%
Sand
15,7%
Silt
54,5%
15–30 cm
pH H₂O
5,5
Org. C
9,8g/kg
Clay
33,9%
Sand
14,7%
Silt
51,4%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest50.6%
Crops4.0%
Built-up5.9%
Bare soil0.5%
Other (grassland, water…)39.0%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology7 basins · 1 lakes · 76 rivers

Hydrology metrics for this exact territory

Stream length here

546,6km

Lake surface here

0,23km²

Basins crossed

7

Max stream order

7

Max drainage

59 314km²

Discharge in basins

1 148,4m³/s

Mean precip.

999mm/an

Mean T°

9,8°C

Moisture idx

-0,06

Max snow

9%

Mean runoff

527mm/an

Mean elev. (basins)

337m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (76, ord ≥ 4)

64 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

4hab/km²

Night light

11,2nW

Built-up

589,6%

Pesticides

4,9kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas17

IUCN V · 15IUCN III · 2

WPC

IUCN V

Easement

11 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN