Ontologia

Commune · FRA

Saint-Denis-sur-Loire

France

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

Species observed

2 799

Observations

31 465

Area

12,4km²

Ecological tissue

Sample of 43 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-Denis-sur-Loire : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 5 bulles famille, 86 interactions GloBI documentées sur 6 types (connectance 9.5%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
43
Interactions affichées
86
Connectance
0.095
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

2 799 distinct species · 31 465 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 479 obs · 1 cellules
Obs. / cellule
≥ 31 479
31 479–31 478
31 479–31 478
31 479–31 478
< 31 479

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

Climate

Mean T°

11,6°C

Annual rain

689mm

Warmest m°

24,4°C

Coldest m°

1,5°C

Elevation: 100 m on average (min 70 m, max 112 m)

Bioclimatic detailsExpert
Annual mean temp.
11,6°C
Annual rain
689mm
Warmest month
24,4°C
Coldest month
1,5°C
Mean alt.
100m
Min
70m
Max
112m
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

7,0

Org. C

22,9g/kg

Clay

32,7%

Sand

19,7%

Silt

47,6%

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

Dominant lithology: scGLiMaggregated to Loir-et-Cher

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
38,7g/kg
Clay
30,5%
Sand
20,7%
Silt
48,9%
5–15 cm
pH H₂O
7,1
Org. C
14,9g/kg
Clay
33,4%
Sand
18,9%
Silt
47,7%
15–30 cm
pH H₂O
7,0
Org. C
15,1g/kg
Clay
34,3%
Sand
19,4%
Silt
46,2%

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

Land cover

Forest3.9%
Crops78.1%
Built-up1.1%
Bare soil0.4%
Other (grassland, water…)16.5%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

2,7km

Basins crossed

1

Max stream order

6

Max drainage

38 362km²

Discharge in basins

14,7m³/s

Mean precip.

646mm/an

Mean T°

11,0°C

Moisture idx

-0,24

Max snow

4%

Mean runoff

210mm/an

Mean elev. (basins)

97m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Night light

1,1nW

Built-up

113,9%

Pesticides

44,8kg/km²

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

Protected areas3

IUCN Not Reported · 3

Petite Beauce

IUCN Not Reported

Special Protection Area (Birds Directive) · 2006

526 km²

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.