Ontologia

Commune · FRA

Saint-Jean-d'Hérans

France

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

Species observed

1 730

Observations

31 882

Area

17,9km²

Ecological tissue

Sample of 24 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-Jean-d'Hérans : 19 espèces + 5 bulles famille, 48 interactions GloBI documentées sur 5 types (connectance 17.4%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
24
Interactions affichées
48
Connectance
0.174
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

1 730 distinct species · 31 882 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 882 obs · 1 cellules
Obs. / cellule
≥ 31 882
31 882–31 881
31 882–31 881
31 882–31 881
< 31 882

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

Climate

Mean T°

9,7°C

Annual rain

1 049mm

Warmest m°

23,7°C

Coldest m°

-4,5°C

Elevation: 778 m on average (min 639 m, max 930 m)

Bioclimatic detailsExpert
Annual mean temp.
9,7°C
Annual rain
1 049mm
Warmest month
23,7°C
Coldest month
-4,5°C
Mean alt.
778m
Min
639m
Max
930m
Std. dev.
86m
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

7,0

Org. C

51,2g/kg

Clay

32,3%

Sand

27,7%

Silt

40,0%

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
6,9
Org. C
78,7g/kg
Clay
30,8%
Sand
28,5%
Silt
40,8%
5–15 cm
pH H₂O
7,0
Org. C
43,9g/kg
Clay
31,0%
Sand
27,9%
Silt
41,1%
15–30 cm
pH H₂O
7,0
Org. C
31,1g/kg
Clay
35,2%
Sand
26,7%
Silt
38,2%

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

Land cover

Forest55.8%
Crops21.0%
Built-up0.3%
Bare soil1.1%
Other (grassland, water…)21.8%

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

Hydrology3 basins · 1 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

3,9km

Lake surface here

0,00km²

Basins crossed

3

Max stream order

4

Max drainage

1 579km²

Discharge in basins

5,3m³/s

Mean precip.

1 007mm/an

Mean T°

8,0°C

Moisture idx

0,16

Max snow

24%

Mean runoff

493mm/an

Mean elev. (basins)

942m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

29,4%

Pesticides

43,1kg/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.