Ontologia

Commune · FRA

Crachier

France

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

Species observed

1 197

Observations

12 601

Area

3,8km²

Ecological tissue

Sample of 32 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 Crachier : 27 espèces + 5 bulles famille, 79 interactions GloBI documentées sur 5 types (connectance 15.9%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
32
Interactions affichées
79
Connectance
0.159
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

1 197 distinct species · 12 601 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 601 obs · 1 cellules
Obs. / cellule
≥ 12 601
12 601–12 600
12 601–12 600
12 601–12 600
< 12 601

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

Climate

Mean T°

11,2°C

Annual rain

1 067mm

Warmest m°

25,0°C

Coldest m°

-1,6°C

Elevation: 441 m on average (min 422 m, max 489 m)

Bioclimatic detailsExpert
Annual mean temp.
11,2°C
Annual rain
1 067mm
Warmest month
25,0°C
Coldest month
-1,6°C
Mean alt.
441m
Min
422m
Max
489m
Std. dev.
10m
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

6,3

Org. C

40,6g/kg

Clay

21,7%

Sand

37,0%

Silt

41,3%

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

Dominant lithology: scGLiMaggregated to Isère

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
66,5g/kg
Clay
19,7%
Sand
38,1%
Silt
42,2%
5–15 cm
pH H₂O
6,3
Org. C
35,7g/kg
Clay
20,0%
Sand
37,2%
Silt
42,8%
15–30 cm
pH H₂O
6,3
Org. C
19,7g/kg
Clay
25,5%
Sand
35,8%
Silt
38,7%

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

Land cover

Forest7.7%
Crops63.0%
Built-up1.7%
Bare soil1.0%
Other (grassland, water…)26.6%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

51 669km²

Discharge in basins

1,4m³/s

Mean precip.

895mm/an

Mean T°

10,8°C

Moisture idx

-0,02

Max snow

4%

Mean runoff

470mm/an

Mean elev. (basins)

362m

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

170,3%

Pesticides

46,0kg/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.