Ontologia

County · USA

Somervell

United States

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

Species observed

2 264

Observations

125 529

Area

500,8km²

Ecological tissue

Sample of 41 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 Somervell : 28 espèces reliées par 112 interactions GloBI sur 4 types (connectance 13.7%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
112
Connectance
0.137
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

2 264 distinct species · 125 529 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

125 529 obs · 10 cellules
Obs. / cellule
≥ 56 737
56 737–56 736
18 166–56 736
5 728–18 165
< 5 728

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

Climate

Mean T°

19,0°C

Annual rain

896mm

Warmest m°

34,7°C

Coldest m°

4,1°C

Elevation: 256 m on average (min 187 m, max 374 m)

Bioclimatic detailsExpert
Annual mean temp.
19,0°C
Annual rain
896mm
Warmest month
34,7°C
Coldest month
4,1°C
Mean alt.
256m
Min
187m
Max
374m
Std. dev.
49m
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

7,1

Org. C

21,2g/kg

Clay

27,7%

Sand

31,4%

Silt

40,9%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
36,7g/kg
Clay
27,1%
Sand
32,0%
Silt
40,9%
5–15 cm
pH H₂O
7,1
Org. C
16,9g/kg
Clay
27,1%
Sand
31,6%
Silt
41,3%
15–30 cm
pH H₂O
7,2
Org. C
10,1g/kg
Clay
28,8%
Sand
30,6%
Silt
40,6%

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

Land cover

Forest47.2%
Crops4.1%
Built-up0.5%
Bare soil1.7%
Other (grassland, water…)46.5%

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

Hydrology4 basins · 2 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

126,4km

Lake surface here

7,88km²

Basins crossed

4

Max stream order

6

Max drainage

59 548km²

Discharge in basins

11,1m³/s

Mean precip.

804mm/an

Mean T°

18,1°C

Moisture idx

-0,46

Mean runoff

119mm/an

Mean elev. (basins)

298m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,9nW

Built-up

51,0%

Pesticides

3,2kg/km²

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