Ontologia

Commune · FRA

Saint-Marien

France

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

Species observed

1 253

Observations

20 686

Area

13,2km²

Ecological tissue

Sample of 32 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-Marien : 21 espèces reliées par 98 interactions GloBI sur 4 types (connectance 19.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
98
Connectance
0.198
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

1 253 distinct species · 20 686 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

20 686 obs · 4 cellules
Obs. / cellule
≥ 9 520
9 520–9 519
5 599–9 519
5 599–5 598
< 5 599

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

Climate

Mean T°

10,4°C

Annual rain

1 017mm

Warmest m°

23,0°C

Coldest m°

0,4°C

Elevation: 463 m on average (min 438 m, max 484 m)

Bioclimatic detailsExpert
Annual mean temp.
10,4°C
Annual rain
1 017mm
Warmest month
23,0°C
Coldest month
0,4°C
Mean alt.
463m
Min
438m
Max
484m
Std. dev.
14m
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

36,6g/kg

Clay

18,7%

Sand

49,5%

Silt

31,8%

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

Dominant lithology: paGLiMaggregated to Creuse

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
58,3g/kg
Clay
18,1%
Sand
50,6%
Silt
31,3%
5–15 cm
pH H₂O
6,0
Org. C
30,2g/kg
Clay
18,0%
Sand
50,8%
Silt
31,2%
15–30 cm
pH H₂O
6,0
Org. C
21,2g/kg
Clay
20,0%
Sand
47,1%
Silt
33,0%

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

Land cover

Forest13.9%
Crops54.1%
Built-up0.5%
Bare soil0.5%
Other (grassland, water…)31.1%

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

Hydrology3 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

3

Max drainage

3 273km²

Discharge in basins

0,1m³/s

Mean precip.

814mm/an

Mean T°

10,4°C

Moisture idx

-0,07

Max snow

5%

Mean runoff

284mm/an

Mean elev. (basins)

348m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Built-up

45,2%

Pesticides

29,3kg/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.