Ontologia

Commune · FRA

Francs

France

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

Species observed

1 224

Observations

8 671

Area

6,3km²

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 Francs : 24 espèces reliées par 107 interactions GloBI sur 5 types (connectance 21.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
107
Connectance
0.216
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

1 224 distinct species · 8 671 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 671 obs · 2 cellules
Obs. / cellule
≥ 6 057
6 057–6 056
6 057–6 056
6 057–6 056
< 6 057

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

Climate

Mean T°

13,4°C

Annual rain

853mm

Warmest m°

26,3°C

Coldest m°

2,7°C

Elevation: 63 m on average (min 42 m, max 88 m)

Bioclimatic detailsExpert
Annual mean temp.
13,4°C
Annual rain
853mm
Warmest month
26,3°C
Coldest month
2,7°C
Mean alt.
63m
Min
42m
Max
88m
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

6,2

Org. C

34,4g/kg

Clay

23,3%

Sand

40,3%

Silt

36,4%

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

Dominant lithology: suGLiMaggregated to Gironde

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
61,6g/kg
Clay
22,2%
Sand
40,9%
Silt
36,9%
5–15 cm
pH H₂O
6,3
Org. C
22,8g/kg
Clay
23,6%
Sand
40,3%
Silt
36,2%
15–30 cm
pH H₂O
6,3
Org. C
18,7g/kg
Clay
24,2%
Sand
39,8%
Silt
36,0%

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

Land cover

Forest39.8%
Crops23.2%
Built-up0.7%
Bare soil1.4%
Other (grassland, water…)34.9%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

15 675km²

Discharge in basins

0,7m³/s

Mean precip.

871mm/an

Mean T°

12,3°C

Moisture idx

-0,11

Max snow

3%

Mean runoff

477mm/an

Mean elev. (basins)

101m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

65,5%

Pesticides

36,3kg/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.