Ontologia

Commune · FRA

Saint-Didier-en-Velay

France

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

Species observed

430

Observations

1 400

Area

25,9km²

Ecological tissue

Sample of 31 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-Didier-en-Velay : 26 espèces + 5 bulles famille, 67 interactions GloBI documentées sur 4 types (connectance 14.4%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
31
Interactions affichées
67
Connectance
0.144
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

430 distinct species · 1 400 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 439 obs · 10 cellules · 1790–2025
Obs. / cellule
≥ 504
504–503
173–503
132–172
< 132

Source : GBIF — observations agrégées par hexagones 0.02° × 0.02° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

9,2°C

Annual rain

1 028mm

Warmest m°

22,5°C

Coldest m°

-2,2°C

Elevation: 812 m on average (min 691 m, max 900 m)

Bioclimatic detailsExpert
Annual mean temp.
9,2°C
Annual rain
1 028mm
Warmest month
22,5°C
Coldest month
-2,2°C
Mean alt.
812m
Min
691m
Max
900m
Std. dev.
43m
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

6,0

Org. C

40,2g/kg

Clay

19,1%

Sand

49,6%

Silt

31,3%

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

Dominant lithology: mtGLiMaggregated to Haute-Loire

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
61,1g/kg
Clay
19,3%
Sand
49,9%
Silt
30,9%
5–15 cm
pH H₂O
6,0
Org. C
37,0g/kg
Clay
17,8%
Sand
50,9%
Silt
31,4%
15–30 cm
pH H₂O
6,0
Org. C
22,6g/kg
Clay
20,2%
Sand
48,0%
Silt
31,7%

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

Land cover

Forest36.5%
Crops29.4%
Built-up1.3%
Bare soil0.9%
Other (grassland, water…)31.9%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

3,4km

Basins crossed

1

Max stream order

2

Max drainage

5 113km²

Discharge in basins

0,7m³/s

Mean precip.

784mm/an

Mean T°

9,5°C

Moisture idx

-0,08

Max snow

8%

Mean runoff

296mm/an

Mean elev. (basins)

620m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

1,6nW

Built-up

129,4%

Pesticides

30,4kg/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.