Ontologia

Subdivision · FRA

Étréchy

France

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

Species observed

6 492

Observations

331 340

Area

98,6km²

Ecological tissue

Sample of 38 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 Étréchy : 29 espèces reliées par 138 interactions GloBI sur 5 types (connectance 19.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
138
Connectance
0.196
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

6 492 distinct species · 331 340 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

331 340 obs · 9 cellules
Obs. / cellule
≥ 52 024
52 024–52 023
45 559–52 023
39 851–45 558
< 39 851

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

Climate

Mean T°

11,0°C

Annual rain

683mm

Warmest m°

23,6°C

Coldest m°

1,0°C

Elevation: 119 m on average (min 64 m, max 152 m)

Bioclimatic detailsExpert
Annual mean temp.
11,0°C
Annual rain
683mm
Warmest month
23,6°C
Coldest month
1,0°C
Mean alt.
119m
Min
64m
Max
152m
Std. dev.
26m
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

30,3g/kg

Clay

25,8%

Sand

22,8%

Silt

51,4%

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
55,7g/kg
Clay
24,4%
Sand
23,3%
Silt
52,3%
5–15 cm
pH H₂O
6,6
Org. C
21,7g/kg
Clay
25,9%
Sand
22,5%
Silt
51,6%
15–30 cm
pH H₂O
6,6
Org. C
13,5g/kg
Clay
27,2%
Sand
22,6%
Silt
50,2%

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

Land cover

Forest21.9%
Crops59.4%
Built-up1.5%
Bare soil0.2%
Other (grassland, water…)17.0%

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

Hydrology2 basins · 0 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

21,0km

Basins crossed

2

Max stream order

3

Max drainage

30 655km²

Discharge in basins

2,7m³/s

Mean precip.

645mm/an

Mean T°

10,8°C

Moisture idx

-0,22

Max snow

5%

Mean runoff

194mm/an

Mean elev. (basins)

119m

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

Human pressure

Pop. density

1hab/km²

Night light

1,0nW

Built-up

153,4%

Pesticides

46,9kg/km²

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

Protected areas2

IUCN V · 1IUCN III · 1

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

Sub-administrations10

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.