Ontologia

County · USA

Tazewell

United States

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

Species observed

2 837

Observations

333 859

Area

1 696,2km²

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 Tazewell : 32 espèces reliées par 74 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
74
Connectance
0.100
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

2 837 distinct species · 333 859 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

333 859 obs · 49 cellules
Obs. / cellule
≥ 75 896
28 273–75 895
1 596–28 272
679–1 595
< 679

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

Climate

Mean T°

11,3°C

Annual rain

1 006mm

Warmest m°

29,1°C

Coldest m°

-7,0°C

Elevation: 188 m on average (min 131 m, max 251 m)

Bioclimatic detailsExpert
Annual mean temp.
11,3°C
Annual rain
1 006mm
Warmest month
29,1°C
Coldest month
-7,0°C
Mean alt.
188m
Min
131m
Max
251m
Std. dev.
29m
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

6,2

Org. C

22,0g/kg

Clay

29,5%

Sand

16,6%

Silt

53,9%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
33,9g/kg
Clay
28,4%
Sand
17,0%
Silt
54,7%
5–15 cm
pH H₂O
6,2
Org. C
18,6g/kg
Clay
28,8%
Sand
16,5%
Silt
54,7%
15–30 cm
pH H₂O
6,1
Org. C
13,4g/kg
Clay
31,2%
Sand
16,4%
Silt
52,5%

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

Land cover

Forest15.6%
Crops64.3%
Built-up1.2%
Bare soil0.7%
Other (grassland, water…)18.2%

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

Hydrology8 basins · 11 lakes · 30 rivers

Hydrology metrics for this exact territory

Stream length here

324,7km

Lake surface here

19,11km²

Basins crossed

8

Max stream order

6

Max drainage

40 829km²

Discharge in basins

458,4m³/s

Mean precip.

940mm/an

Mean T°

10,7°C

Moisture idx

-0,12

Max snow

10%

Mean runoff

295mm/an

Mean elev. (basins)

191m

Rivers / streams (30, ord ≥ 4)

18 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

2,6nW

Built-up

116,2%

Pesticides

25,3kg/km²

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

Protected areas28

IUCN V · 26IUCN Not Assigned · 2
Complete list

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