Ontologia

Commune · FRA

Pierrefiche

France

CfbTemperate, no dry season, warm summer(67 %)

Species observed

328

Observations

9 146

Area

16,3km²

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 Pierrefiche : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 5 bulles famille, 64 interactions GloBI documentées sur 5 types (connectance 13.8%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
31
Interactions affichées
64
Connectance
0.138
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

328 distinct species · 9 146 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 141 obs · 8 cellules · 1975–2022
Obs. / cellule
≥ 8 479
8 479–8 478
205–8 478
176–204
< 176

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

Climate

Mean T°

7,3°C

Annual rain

1 206mm

Warmest m°

20,7°C

Coldest m°

-3,9°C

Elevation: 1 165 m on average (min 1 096 m, max 1 249 m)

Bioclimatic detailsExpert
Annual mean temp.
7,3°C
Annual rain
1 206mm
Warmest month
20,7°C
Coldest month
-3,9°C
Mean alt.
1 165m
Min
1 096m
Max
1 249m
Std. dev.
42m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(67 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,4

Org. C

62,4g/kg

Clay

27,1%

Sand

32,2%

Silt

40,7%

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

Dominant lithology: scGLiMaggregated to Lozère

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
87,0g/kg
Clay
25,7%
Sand
33,2%
Silt
41,1%
5–15 cm
pH H₂O
6,4
Org. C
60,2g/kg
Clay
25,8%
Sand
32,9%
Silt
41,3%
15–30 cm
pH H₂O
6,4
Org. C
40,0g/kg
Clay
29,9%
Sand
30,5%
Silt
39,6%

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

Land cover

Forest50.1%
Crops24.4%
Built-up0.2%
Bare soil0.9%
Other (grassland, water…)24.3%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

6,1km

Basins crossed

1

Max stream order

3

Max drainage

384km²

Discharge in basins

0,2m³/s

Mean precip.

848mm/an

Mean T°

6,8°C

Moisture idx

0,11

Max snow

21%

Mean runoff

478mm/an

Mean elev. (basins)

1 210m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

23,4%

Pesticides

18,2kg/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.