Ontologia

Commune · FRA

Saint-Jean

France

CfaTemperate, no dry season, hot summer(100 %)

Species observed

2 095

Observations

27 791

Area

6,1km²

Ecological tissue

Sample of 34 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 : 22 espèces reliées par 135 interactions GloBI sur 5 types (connectance 22.7%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
135
Connectance
0.227
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

2 095 distinct species · 27 791 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

27 791 obs · 3 cellules
Obs. / cellule
≥ 14 663
14 663–14 662
14 663–14 662
7 578–14 662
< 7 578

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

Climate

Mean T°

13,5°C

Annual rain

699mm

Warmest m°

26,9°C

Coldest m°

2,2°C

Elevation: 183 m on average (min 152 m, max 204 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
699mm
Warmest month
26,9°C
Coldest month
2,2°C
Mean alt.
183m
Min
152m
Max
204m
Std. dev.
8m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot 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

23,4g/kg

Clay

29,5%

Sand

28,1%

Silt

42,3%

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

Dominant lithology: suGLiMaggregated to Haute-Garonne

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
42,3g/kg
Clay
27,7%
Sand
28,4%
Silt
43,8%
5–15 cm
pH H₂O
7,1
Org. C
13,2g/kg
Clay
28,8%
Sand
27,8%
Silt
43,3%
15–30 cm
pH H₂O
7,0
Org. C
14,7g/kg
Clay
32,0%
Sand
28,0%
Silt
39,9%

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

Land cover

Forest9.8%
Crops10.9%
Built-up13.3%
Bare soil0.9%
Other (grassland, water…)65.1%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,8km

Basins crossed

1

Max stream order

1

Max drainage

1 516km²

Discharge in basins

0,1m³/s

Mean precip.

741mm/an

Mean T°

12,7°C

Moisture idx

-0,24

Max snow

1%

Mean runoff

274mm/an

Mean elev. (basins)

212m

Watersheds crossing here

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

Human pressure

Pop. density

12hab/km²

Night light

5,5nW

Built-up

1 326,9%

Pesticides

44,6kg/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.