Ontologia

Independent City · USA

Roanoke City

United States

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

Species observed

1 401

Observations

183 301

Area

111,8km²

Ecological tissue

Sample of 40 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 Roanoke City : 28 espèces reliées par 82 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
82
Connectance
0.095
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

1 401 distinct species · 183 301 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

183 301 obs · 3 cellules
Obs. / cellule
≥ 111 345
111 345–111 344
111 345–111 344
43 532–111 344
< 43 532

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

981mm

Warmest m°

29,8°C

Coldest m°

-2,3°C

Elevation: 324 m on average (min 284 m, max 459 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
981mm
Warmest month
29,8°C
Coldest month
-2,3°C
Mean alt.
324m
Min
284m
Max
459m
Std. dev.
28m
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

5,5

Org. C

35,0g/kg

Clay

28,0%

Sand

28,7%

Silt

43,3%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
69,2g/kg
Clay
26,0%
Sand
29,7%
Silt
44,4%
5–15 cm
pH H₂O
5,5
Org. C
22,5g/kg
Clay
25,9%
Sand
29,7%
Silt
44,4%
15–30 cm
pH H₂O
5,5
Org. C
13,2g/kg
Clay
32,0%
Sand
26,9%
Silt
41,1%

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

Land cover

Forest24.6%
Crops2.5%
Built-up11.4%
Bare soil0.8%
Other (grassland, water…)60.8%

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

Hydrology1 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

41,7km

Basins crossed

1

Max stream order

4

Max drainage

1 880km²

Discharge in basins

1,4m³/s

Mean precip.

1 045mm/an

Mean T°

12,3°C

Moisture idx

-0,11

Max snow

3%

Mean runoff

432mm/an

Mean elev. (basins)

486m

Watersheds crossing here

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

Human pressure

Pop. density

6hab/km²

Night light

23,7nW

Built-up

1 138,9%

Pesticides

4,8kg/km²

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