Ontologia

Commune · FRA

Saint-Père-en-Retz

France

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

Species observed

2 255

Observations

22 903

Area

65,1km²

Ecological tissue

Sample of 33 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-Père-en-Retz : 24 espèces reliées par 92 interactions GloBI sur 5 types (connectance 15.5%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
92
Connectance
0.155
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

2 255 distinct species · 22 903 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 903 obs · 6 cellules
Obs. / cellule
≥ 8 125
8 125–8 124
4 089–8 124
3 511–4 088
< 3 511

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

Climate

Mean T°

12,4°C

Annual rain

779mm

Warmest m°

22,6°C

Coldest m°

3,6°C

Elevation: 19 m on average (min 0 m, max 51 m)

Bioclimatic detailsExpert
Annual mean temp.
12,4°C
Annual rain
779mm
Warmest month
22,6°C
Coldest month
3,6°C
Mean alt.
19m
Min
0m
Max
51m
Std. dev.
13m
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

6,2

Org. C

39,9g/kg

Clay

25,9%

Sand

32,5%

Silt

41,5%

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

Dominant lithology: ssGLiMaggregated to Loire-Atlantique

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
63,0g/kg
Clay
24,9%
Sand
32,9%
Silt
42,2%
5–15 cm
pH H₂O
6,2
Org. C
30,7g/kg
Clay
25,5%
Sand
32,1%
Silt
42,4%
15–30 cm
pH H₂O
6,2
Org. C
25,9g/kg
Clay
27,4%
Sand
32,7%
Silt
39,9%

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

Land cover

Forest13.8%
Crops51.8%
Built-up1.3%
Bare soil0.5%
Other (grassland, water…)32.6%

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

Hydrology1 basins · 2 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

11,5km

Lake surface here

1,28km²

Basins crossed

1

Max stream order

1

Max drainage

1 307km²

Discharge in basins

0,1m³/s

Mean precip.

832mm/an

Mean T°

11,9°C

Moisture idx

0,04

Max snow

5%

Mean runoff

538mm/an

Mean elev. (basins)

14m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

130,2%

Pesticides

43,3kg/km²

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

Protected areas2

IUCN Not Reported · 2🌊 Marine · 2

Estuaire de la Loire

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2014

218 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.