Ontologia

Commune · FRA

Visan

France

CfaTemperate, no dry season, hot summer(100 %)

Species observed

1 156

Observations

8 306

Area

42,6km²

Ecological tissue

Sample of 41 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 Visan : 35 espèces + 6 bulles famille, 95 interactions GloBI documentées sur 5 types (connectance 11.6%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
41
Interactions affichées
95
Connectance
0.116
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

1 156 distinct species · 8 306 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 308 obs · 2 cellules
Obs. / cellule
≥ 4 314
4 314–4 313
4 314–4 313
4 314–4 313
< 4 314

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

Climate

Mean T°

13,9°C

Annual rain

967mm

Warmest m°

29,1°C

Coldest m°

0,8°C

Elevation: 195 m on average (min 115 m, max 364 m)

Bioclimatic detailsExpert
Annual mean temp.
13,9°C
Annual rain
967mm
Warmest month
29,1°C
Coldest month
0,8°C
Mean alt.
195m
Min
115m
Max
364m
Std. dev.
62m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)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

34,6g/kg

Clay

28,1%

Sand

33,6%

Silt

38,4%

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

Dominant lithology: smGLiMaggregated to Vaucluse

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
59,4g/kg
Clay
27,5%
Sand
33,9%
Silt
38,5%
5–15 cm
pH H₂O
7,5
Org. C
22,5g/kg
Clay
27,0%
Sand
33,4%
Silt
39,7%
15–30 cm
pH H₂O
7,6
Org. C
21,9g/kg
Clay
29,7%
Sand
33,3%
Silt
37,1%

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

Land cover

Forest13.7%
Crops31.7%
Built-up0.9%
Bare soil4.9%
Other (grassland, water…)48.8%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

15,7km

Basins crossed

1

Max stream order

1

Max drainage

74 988km²

Discharge in basins

31,2m³/s

Mean precip.

845mm/an

Mean T°

11,1°C

Moisture idx

-0,08

Max snow

5%

Mean runoff

351mm/an

Mean elev. (basins)

446m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

89,1%

Pesticides

42,9kg/km²

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

Protected areas2

IUCN V · 1IUCN IV · 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.