Ontologia

Subdivision · FRA

Grigny

France

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

Species observed

3 024

Observations

99 372

Area

5,2km²

Ecological tissue

Sample of 50 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 Grigny : 13 espèces reliées par 333 interactions GloBI sur 6 types (connectance 13.0%, filtre Serrano α=0.2). 59 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
72
Interactions affichées
333
Connectance
0.130
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

3 024 distinct species · 99 372 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

99 372 obs · 2 cellules
Obs. / cellule
≥ 67 900
67 900–67 899
67 900–67 899
67 900–67 899
< 67 900

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

Climate

Mean T°

11,3°C

Annual rain

676mm

Warmest m°

23,8°C

Coldest m°

1,1°C

Elevation: 63 m on average (min 33 m, max 81 m)

Bioclimatic detailsExpert
Annual mean temp.
11,3°C
Annual rain
676mm
Warmest month
23,8°C
Coldest month
1,1°C
Mean alt.
63m
Min
33m
Max
81m
Std. dev.
16m
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

7,1

Org. C

22,7g/kg

Clay

29,9%

Sand

24,5%

Silt

45,6%

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
6,9
Org. C
38,9g/kg
Clay
29,7%
Sand
24,8%
Silt
45,6%
5–15 cm
pH H₂O
7,2
Org. C
15,5g/kg
Clay
30,5%
Sand
24,4%
Silt
45,1%
15–30 cm
pH H₂O
7,2
Org. C
13,7g/kg
Clay
29,6%
Sand
24,4%
Silt
46,0%

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

Land cover

Forest10.2%
Crops4.0%
Built-up12.8%
Bare soil0.3%
Other (grassland, water…)72.6%

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

Hydrology1 basins · 1 lakes · 1 rivers

Hydrology metrics for this exact territory

Lake surface here

0,67km²

Basins crossed

1

Max stream order

6

Max drainage

30 655km²

Discharge in basins

0,5m³/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

Lakes (1, top by area)

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

30hab/km²

Night light

35,8nW

Built-up

1 283,9%

Pesticides

47,8kg/km²

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

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.