Clarion, Pennsylvania
IUCN VWild and Scenic River · 1996
67 km²
County · USA
Clarion
United States
DfbCold, no dry season, warm summer(92 %)
Species observed
3 341
Observations
223 369
Area
1 564,7km²
Ecological tissue
Sample of 34 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 Clarion : 21 espèces reliées par 80 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
34
Interactions affichées
80
Connectance
0.143
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
3 341 distinct species · 223 369 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,2°C
Annual rain
1 285mm
Warmest m°
25,9°C
Coldest m°
-7,5°C
Elevation: 429 m on average (min 301 m, max 511 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,2°C
Annual rain
1 285mm
Warmest month
25,9°C
Coldest month
-7,5°C
Mean alt.
429m
Min
301m
Max
511m
Std. dev.
39m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(92 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,0
Org. C
55,5g/kg
Clay
25,6%
Sand
26,6%
Silt
47,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,9
Org. C
120,4g/kg
Clay
25,2%
Sand
26,8%
Silt
48,1%
5–15 cm
pH H₂O
5,0
Org. C
31,4g/kg
Clay
25,4%
Sand
26,7%
Silt
47,9%
15–30 cm
pH H₂O
5,0
Org. C
14,8g/kg
Clay
26,1%
Sand
26,5%
Silt
47,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest70.3%
Crops9.3%
Built-up0.5%
Bare soil0.2%
Other (grassland, water…)19.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 1 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
301,8km
Lake surface here
0,45km²
Basins crossed
9
Max stream order
5
Max drainage
21 668km²
Discharge in basins
230,6m³/s
Mean precip.
1 120mm/an
Mean T°
8,1°C
Moisture idx
0,11
Max snow
17%
Mean runoff
631mm/an
Mean elev. (basins)
452m
Watersheds crossing here
- Bassin de Clarion Riversub-area1 043,2 km²overlap511.34 km²33%
- Bassin de Clarion Riversub-area354,7 km²overlap355.18 km²23%
- Bassin de Redbank Creeksub-area1 489,7 km²overlap254.93 km²16%
- Bassin de Deer Creeksub-area191,5 km²overlap191.78 km²12%
- Bassin de Sandy Creeksub-area1 166,9 km²overlap86.79 km²6%
- Bassin de Allegheny Riversub-area377,2 km²overlap84.30 km²5%
- Bassin de Tionesta Creeksub-area1 238,3 km²overlap48.95 km²3%
- Bassin de Allegheny Riversub-area441,1 km²overlap31.42 km²2%
- Bassin de Allegheny Riversub-area46,2 km²overlap0.02 km²0%
Lakes (1, top by area)
Rivers / streams (20, ord ≥ 4)
- Clarion Riverord 4len here96.09 km44%total216 km
- Piney Creekord 6len here40.16 km11%total369 km
- Redbank Creekord 4len here39.62 km38%total103 km
- Licking Creekord 2len here19.52 km100%total20 km
- Mill Creekord 7len here17.07 km1%total1839 km
- East Sandy Creekord 3len here15.55 km31%total51 km
- Allegheny Riverord 6len here15.14 km2%total621 km
- Deer Creekord 6len here11.13 km1%total1337 km
- Hefren Riverord 1len here7.83 km90%total9 km
- Turkey Runord 3len here7.42 km11%total68 km
- Wildcat Runord 2len here5.98 km64%total9 km
- Craggs Runord 1len here5.70 km100%total6 km
8 more river segmentssorted by Strahler order + length
- Fiddlers Runord 1len here4.94 km100%total5 km
- Little Mill Creekord 2len here4.85 km8%total59 km
- Leatherwood Runord 2len here3.43 km100%total3 km
- Black Fox Runord 5len here3.16 km55%total6 km
- Pine Runord 5len here1.96 km3%total66 km
- Richey Runord 1len here1.90 km38%total5 km
- Sugar Creekord 6len here0.20 km0%total1414 km
- Tionesta Creekord 4len here0.16 km0%total98 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
45,8%
Pesticides
9,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas6
IUCN V · 5IUCN III · 1
Clarion, Pennsylvania Wild And Scenic River Study Area
IUCN VScenic River · 1992
50 km²
Cook Forest
IUCN VState Park
31 km²
Mill Creek, Pennsylvania Wild And Scenic River Study Area
IUCN VScenic River · 1992
26 km²
Forest Cathedral
IUCN IIINatural Area
1 km²
Armstrong County Conservancy Property
IUCN VPrivate Conservation
1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN