Ontologia

Commune · FRA

Saint-Cyr-sous-Dourdan

France

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

Species observed

3 764

Observations

163 626

Area

9,9km²

Ecological tissue

Sample of 46 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-Cyr-sous-Dourdan : 15 espèces reliées par 298 interactions GloBI sur 5 types (connectance 15.3%, filtre Serrano α=0.2). 48 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
63
Interactions affichées
298
Connectance
0.153
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

3 764 distinct species · 163 626 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

163 626 obs · 3 cellules
Obs. / cellule
≥ 90 742
90 742–90 741
90 742–90 741
40 379–90 741
< 40 379

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

645mm

Warmest m°

23,5°C

Coldest m°

1,0°C

Elevation: 116 m on average (min 93 m, max 151 m)

Bioclimatic detailsExpert
Annual mean temp.
11,0°C
Annual rain
645mm
Warmest month
23,5°C
Coldest month
1,0°C
Mean alt.
116m
Min
93m
Max
151m
Std. dev.
13m
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

6,7

Org. C

26,8g/kg

Clay

26,8%

Sand

23,8%

Silt

49,4%

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
6,5
Org. C
47,0g/kg
Clay
25,1%
Sand
24,6%
Silt
50,3%
5–15 cm
pH H₂O
6,8
Org. C
19,8g/kg
Clay
26,5%
Sand
23,7%
Silt
49,8%
15–30 cm
pH H₂O
6,7
Org. C
13,6g/kg
Clay
28,9%
Sand
23,1%
Silt
47,9%

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

Land cover

Forest29.6%
Crops50.7%
Built-up0.9%
Bare soil0.3%
Other (grassland, water…)18.6%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

3,6km

Basins crossed

1

Max stream order

2

Max drainage

30 655km²

Discharge in basins

1,0m³/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

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,6nW

Built-up

87,9%

Pesticides

47,5kg/km²

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

Protected areas2

IUCN V · 1IUCN Not Reported · 1

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

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.