Ontologia

County · USA

Grayson

United States

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

Species observed

924

Observations

12 321

Area

1 322,6km²

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 Grayson : 31 espèces reliées par 75 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
75
Connectance
0.091
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

924 distinct species · 12 321 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 321 obs · 40 cellules
Obs. / cellule
≥ 2 234
847–2 233
256–846
144–255
< 144

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

Climate

Mean T°

14,1°C

Annual rain

1 314mm

Warmest m°

30,7°C

Coldest m°

-2,0°C

Elevation: 195 m on average (min 137 m, max 250 m)

Bioclimatic detailsExpert
Annual mean temp.
14,1°C
Annual rain
1 314mm
Warmest month
30,7°C
Coldest month
-2,0°C
Mean alt.
195m
Min
137m
Max
250m
Std. dev.
20m
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

25,0g/kg

Clay

24,7%

Sand

12,4%

Silt

62,9%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
49,4g/kg
Clay
21,3%
Sand
13,5%
Silt
65,3%
5–15 cm
pH H₂O
5,6
Org. C
17,3g/kg
Clay
22,9%
Sand
12,8%
Silt
64,4%
15–30 cm
pH H₂O
5,4
Org. C
8,5g/kg
Clay
30,0%
Sand
11,0%
Silt
58,9%

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

Land cover

Forest56.9%
Crops16.6%
Built-up0.6%
Bare soil0.1%
Other (grassland, water…)25.8%

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

Hydrology9 basins · 9 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

151,1km

Lake surface here

14,84km²

Basins crossed

9

Max stream order

4

Max drainage

14 164km²

Discharge in basins

59,3m³/s

Mean precip.

1 271mm/an

Mean T°

13,3°C

Moisture idx

0,06

Max snow

1%

Mean runoff

419mm/an

Mean elev. (basins)

197m

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

Human pressure

Pop. density

0hab/km²

Night light

0,8nW

Built-up

57,9%

Pesticides

9,5kg/km²

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

Protected areas1

IUCN V · 1

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