Ontologia

Commune · CHE

Ayer

Switzerland

ETPolar, tundra(72 %)

Species observed

4 976

Observations

133 100

Area

119,2km²

Ecological tissue

Sample of 25 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 Ayer : 21 espèces + 4 bulles famille, 41 interactions GloBI documentées sur 4 types (connectance 13.7%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
25
Interactions affichées
41
Connectance
0.137
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

4 976 distinct species · 133 100 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

133 100 obs · 8 cellules
Obs. / cellule
≥ 39 830
39 830–39 829
24 108–39 829
17 150–24 107
< 17 150

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

Climate

Mean T°

-3,4°C

Annual rain

1 293mm

Warmest m°

11,5°C

Coldest m°

-18,8°C

Elevation: 2 644 m on average (min 1 338 m, max 3 782 m)

Bioclimatic detailsExpert
Annual mean temp.
-3,4°C
Annual rain
1 293mm
Warmest month
11,5°C
Coldest month
-18,8°C
Mean alt.
2 644m
Min
1 338m
Max
3 782m
Std. dev.
556m
Köppen-Geiger (dominant)
ETPolar, tundra(72 %)Polar

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

75,7g/kg

Clay

18,6%

Sand

39,6%

Silt

41,9%

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

Dominant lithology: suGLiMaggregated to Sierre

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
120,6g/kg
Clay
17,9%
Sand
39,5%
Silt
42,6%
5–15 cm
pH H₂O
6,2
Org. C
61,1g/kg
Clay
18,1%
Sand
39,7%
Silt
42,2%
15–30 cm
pH H₂O
6,2
Org. C
45,3g/kg
Clay
19,6%
Sand
39,7%
Silt
40,8%

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

Land cover

Forest11.4%
Crops0.0%
Built-up0.1%
Bare soil21.2%
Other (grassland, water…)67.3%

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

Hydrology3 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

28,2km

Basins crossed

3

Max stream order

3

Max drainage

2 416km²

Discharge in basins

4,1m³/s

Mean precip.

1 844mm/an

Mean T°

-0,4°C

Moisture idx

0,74

Max snow

57%

Mean runoff

1 002mm/an

Mean elev. (basins)

2 395m

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

10,5%

Pesticides

14,9kg/km²

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

Protected areas4

IUCN IV · 4

Glacier de Zinal

IUCN IV

Federal Inventory of Alluvial Zones of National Importance · 2001

2 km²

Plat de la Lé

IUCN IV

Federal Inventory of Alluvial Zones of National Importance · 2017

0 km²

Le Poyou

IUCN IV

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

0 km²

Ayer

IUCN IV

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

0 km²

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