Ontologia

Commune · FRA

Arfons

France

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

Species observed

847

Observations

13 616

Area

39,8km²

Ecological tissue

Sample of 44 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 Arfons : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 5 types (connectance 11.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
112
Connectance
0.113
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

847 distinct species · 13 616 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 616 obs · 1 cellules
Obs. / cellule
≥ 13 616
13 616–13 615
13 616–13 615
13 616–13 615
< 13 616

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

Climate

Mean T°

10,6°C

Annual rain

1 446mm

Warmest m°

23,5°C

Coldest m°

0,3°C

Elevation: 732 m on average (min 602 m, max 830 m)

Bioclimatic detailsExpert
Annual mean temp.
10,6°C
Annual rain
1 446mm
Warmest month
23,5°C
Coldest month
0,3°C
Mean alt.
732m
Min
602m
Max
830m
Std. dev.
54m
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

40,2g/kg

Clay

26,4%

Sand

34,4%

Silt

39,2%

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

Dominant lithology: ssGLiMaggregated to Tarn

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
65,4g/kg
Clay
25,4%
Sand
34,8%
Silt
39,7%
5–15 cm
pH H₂O
6,0
Org. C
32,9g/kg
Clay
25,5%
Sand
34,9%
Silt
39,7%
15–30 cm
pH H₂O
6,0
Org. C
22,4g/kg
Clay
28,3%
Sand
33,4%
Silt
38,3%

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

Land cover

Forest67.4%
Crops14.2%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)18.2%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

4,6km

Basins crossed

2

Max stream order

1

Max drainage

945km²

Discharge in basins

0,6m³/s

Mean precip.

784mm/an

Mean T°

12,6°C

Moisture idx

-0,18

Max snow

4%

Mean runoff

423mm/an

Mean elev. (basins)

299m

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

9,5%

Pesticides

25,7kg/km²

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

Protected areas2

IUCN V · 1IUCN Not Reported · 1

Vallée du Lampy

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2014

95 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.