Ontologia

Subdivision · FRA

Saint-Chéron

France

CfbTemperate, no dry season, warm summer(100 %)

Species observed

2 945

Observations

95 419

Area

94,9km²

Ecological tissue

Sample of 35 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 Saint-Chéron : 25 espèces reliées par 131 interactions GloBI sur 6 types (connectance 20.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
131
Connectance
0.208
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

2 945 distinct species · 95 419 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

95 419 obs · 3 cellules
Obs. / cellule
≥ 33 631
33 631–33 630
33 631–33 630
32 505–33 630
< 32 505

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

Climate

Mean T°

11,1°C

Annual rain

656mm

Warmest m°

23,5°C

Coldest m°

1,0°C

Elevation: 109 m on average (min 61 m, max 152 m)

Bioclimatic detailsExpert
Annual mean temp.
11,1°C
Annual rain
656mm
Warmest month
23,5°C
Coldest month
1,0°C
Mean alt.
109m
Min
61m
Max
152m
Std. dev.
24m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,5

Org. C

30,5g/kg

Clay

26,9%

Sand

25,2%

Silt

47,9%

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

Dominant lithology: suGLiMaggregated to Essonne

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
55,3g/kg
Clay
25,3%
Sand
26,0%
Silt
48,6%
5–15 cm
pH H₂O
6,6
Org. C
22,4g/kg
Clay
26,6%
Sand
25,0%
Silt
48,4%
15–30 cm
pH H₂O
6,6
Org. C
13,7g/kg
Clay
28,9%
Sand
24,6%
Silt
46,5%

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

Land cover

Forest30.2%
Crops45.4%
Built-up1.9%
Bare soil0.3%
Other (grassland, water…)22.2%

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

Hydrology2 basins · 1 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

31,1km

Lake surface here

0,13km²

Basins crossed

2

Max stream order

3

Max drainage

30 655km²

Discharge in basins

9,1m³/s

Mean precip.

645mm/an

Mean T°

10,7°C

Moisture idx

-0,21

Max snow

5%

Mean runoff

196mm/an

Mean elev. (basins)

117m

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

Human pressure

Pop. density

2hab/km²

Night light

1,4nW

Built-up

185,0%

Pesticides

47,4kg/km²

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

Protected areas5

IUCN V · 2IUCN IV · 2IUCN Not Reported · 1

etang de bajolet

IUCN IV

Land acquired by a regional conservatory of natural areas · 1994

0 km²

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

Sub-administrations8

France-specific data (Phase 2)

ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.