Ontologia

Commune · CHE

Varen

Switzerland

DfbCold, no dry season, warm summer(30 %)

Species observed

2 874

Observations

18 687

Area

12,5km²

Ecological tissue

Sample of 38 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 Varen : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 6 bulles famille, 46 interactions GloBI documentées sur 7 types (connectance 6.5%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
38
Interactions affichées
46
Connectance
0.065
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

2 874 distinct species · 18 687 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

18 654 obs · 9 cellules · 1811–2025
Obs. / cellule
≥ 16 746
16 746–16 745
445–16 745
200–444
< 200

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

Climate

Mean T°

3,2°C

Annual rain

1 376mm

Warmest m°

18,3°C

Coldest m°

-12,5°C

Elevation: 1 519 m on average (min 594 m, max 2 769 m)

Bioclimatic detailsExpert
Annual mean temp.
3,2°C
Annual rain
1 376mm
Warmest month
18,3°C
Coldest month
-12,5°C
Mean alt.
1 519m
Min
594m
Max
2 769m
Std. dev.
659m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(30 %)Cold

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

74,1g/kg

Clay

20,3%

Sand

39,7%

Silt

40,0%

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

Dominant lithology: scGLiMaggregated to Leuk

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
122,2g/kg
Clay
20,0%
Sand
39,6%
Silt
40,4%
5–15 cm
pH H₂O
6,2
Org. C
62,3g/kg
Clay
20,3%
Sand
39,7%
Silt
40,0%
15–30 cm
pH H₂O
6,2
Org. C
37,9g/kg
Clay
20,5%
Sand
40,0%
Silt
39,6%

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

Land cover

Forest22.6%
Crops1.1%
Built-up0.9%
Bare soil11.8%
Other (grassland, water…)63.5%

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

Hydrology1 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

3,9km

Basins crossed

1

Max stream order

5

Max drainage

2 416km²

Discharge in basins

1,9m³/s

Mean precip.

1 709mm/an

Mean T°

1,2°C

Moisture idx

0,66

Max snow

45%

Mean runoff

1 091mm/an

Mean elev. (basins)

2 054m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

93,9%

Pesticides

56,5kg/km²

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

Protected areas10

IUCN IV · 7IUCN Not Assigned · 2IUCN Not Reported · 1

Leukerbad

IUCN IV

Federal Hunting Reserves · 1992

42 km²

Finges

IUCN Not Assigned

Emerald Sites · 2009

20 km²

Pfynwald

IUCN IV

Federal Inventory of Alluvial Zones of National Importance · 1992

4 km²

Pfarschong

IUCN IV

Federal Inventory of Dry Grasslands and Pastures of National Importance · 2010

0 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN