Ontologia

County · USA

Johnson

United States

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

Species observed

413

Observations

6 436

Area

794,4km²

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 Johnson : 28 espèces reliées par 90 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
90
Connectance
0.110
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

413 distinct species · 6 436 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 436 obs · 24 cellules
Obs. / cellule
≥ 1 348
718–1 347
245–717
65–244
< 65

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

Climate

Mean T°

18,3°C

Annual rain

1 227mm

Warmest m°

33,0°C

Coldest m°

4,2°C

Elevation: 95 m on average (min 52 m, max 123 m)

Bioclimatic detailsExpert
Annual mean temp.
18,3°C
Annual rain
1 227mm
Warmest month
33,0°C
Coldest month
4,2°C
Mean alt.
95m
Min
52m
Max
123m
Std. dev.
11m
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

5,2

Org. C

22,6g/kg

Clay

16,6%

Sand

67,3%

Silt

16,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
48,1g/kg
Clay
14,9%
Sand
68,8%
Silt
16,4%
5–15 cm
pH H₂O
5,2
Org. C
12,7g/kg
Clay
14,6%
Sand
69,1%
Silt
16,3%
15–30 cm
pH H₂O
5,2
Org. C
7,1g/kg
Clay
20,3%
Sand
64,0%
Silt
15,8%

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

Land cover

Forest60.8%
Crops7.2%
Built-up0.2%
Bare soil0.7%
Other (grassland, water…)31.1%

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

Hydrology6 basins · 5 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

152,4km

Lake surface here

0,97km²

Basins crossed

6

Max stream order

5

Max drainage

11 705km²

Discharge in basins

39,7m³/s

Mean precip.

1 160mm/an

Mean T°

17,8°C

Moisture idx

-0,20

Mean runoff

400mm/an

Mean elev. (basins)

98m

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

22,0%

Pesticides

17,3kg/km²

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

Protected areas4

IUCN V · 2IUCN Not Assigned · 2🌊 Marine · 1

Beaverdam

IUCN V

Wildlife Management Area

32 km²

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