Ontologia

Commune · FRA

Bessas

France

CfaTemperate, no dry season, hot summer(89 %)

Species observed

2 752

Observations

57 645

Area

16,9km²

Ecological tissue

Sample of 18 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 Bessas : 10 espèces reliées par 56 interactions GloBI sur 5 types (connectance 29.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
56
Connectance
0.295
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

2 752 distinct species · 57 645 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

57 645 obs · 4 cellules
Obs. / cellule
≥ 30 311
30 311–30 310
11 891–30 310
11 891–11 890
< 11 891

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

Climate

Mean T°

13,7°C

Annual rain

1 143mm

Warmest m°

28,6°C

Coldest m°

1,4°C

Elevation: 227 m on average (min 149 m, max 390 m)

Bioclimatic detailsExpert
Annual mean temp.
13,7°C
Annual rain
1 143mm
Warmest month
28,6°C
Coldest month
1,4°C
Mean alt.
227m
Min
149m
Max
390m
Std. dev.
49m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(89 %)Temperate

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

Soil & lithology

pH H₂O

7,5

Org. C

30,4g/kg

Clay

27,1%

Sand

31,2%

Silt

41,7%

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

Dominant lithology: mtGLiMaggregated to Ardèche

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
50,1g/kg
Clay
26,8%
Sand
31,4%
Silt
41,8%
5–15 cm
pH H₂O
7,6
Org. C
20,7g/kg
Clay
26,3%
Sand
30,9%
Silt
42,8%
15–30 cm
pH H₂O
7,6
Org. C
20,5g/kg
Clay
28,1%
Sand
31,3%
Silt
40,5%

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

Land cover

Forest21.7%
Crops25.7%
Built-up0.3%
Bare soil3.4%
Other (grassland, water…)48.8%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,3km

Basins crossed

2

Max stream order

1

Max drainage

2 394km²

Discharge in basins

0,3m³/s

Mean precip.

767mm/an

Mean T°

12,2°C

Moisture idx

-0,20

Max snow

9%

Mean runoff

486mm/an

Mean elev. (basins)

304m

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

30,5%

Pesticides

46,9kg/km²

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

Protected areas1

IUCN Not Reported · 1

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.