Ontologia

County · USA

Powell

United States

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

Species observed

2 709

Observations

28 163

Area

468,9km²

Ecological tissue

Sample of 50 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 Powell : 40 espèces reliées par 83 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
83
Connectance
0.068
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

2 709 distinct species · 28 163 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

28 163 obs · 11 cellules
Obs. / cellule
≥ 20 576
2 981–20 575
857–2 980
555–856
< 555

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

Climate

Mean T°

13,5°C

Annual rain

1 224mm

Warmest m°

29,5°C

Coldest m°

-2,2°C

Elevation: 283 m on average (min 191 m, max 394 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
1 224mm
Warmest month
29,5°C
Coldest month
-2,2°C
Mean alt.
283m
Min
191m
Max
394m
Std. dev.
52m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,3

Org. C

39,7g/kg

Clay

30,4%

Sand

17,4%

Silt

52,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
80,2g/kg
Clay
26,8%
Sand
19,1%
Silt
54,0%
5–15 cm
pH H₂O
5,3
Org. C
26,9g/kg
Clay
28,9%
Sand
17,6%
Silt
53,5%
15–30 cm
pH H₂O
5,3
Org. C
11,9g/kg
Clay
35,5%
Sand
15,5%
Silt
49,1%

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

Land cover

Forest83.6%
Crops4.2%
Built-up0.5%
Bare soil0.1%
Other (grassland, water…)11.6%

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

Hydrology3 basins · 1 lakes · 17 rivers

Hydrology metrics for this exact territory

Stream length here

119,9km

Lake surface here

0,16km²

Basins crossed

3

Max stream order

4

Max drainage

7 593km²

Discharge in basins

6,3m³/s

Mean precip.

1 210mm/an

Mean T°

12,3°C

Moisture idx

0,02

Max snow

3%

Mean runoff

414mm/an

Mean elev. (basins)

309m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (17, ord ≥ 4)

5 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,7nW

Built-up

49,9%

Pesticides

5,1kg/km²

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

Protected areas6

IUCN V · 6

Pilot Knob

IUCN V

State Nature Preserve · 1985

3 km²

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