Ontologia

Commune · CHE

Pontresina

Switzerland

ETPolar, tundra(75 %)

Species observed

2 233

Observations

33 286

Area

116,7km²

Ecological tissue

Sample of 30 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 Pontresina : 16 espèces reliées par 75 interactions GloBI sur 5 types (connectance 13.4%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
75
Connectance
0.134
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

2 233 distinct species · 33 286 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

33 286 obs · 3 cellules
Obs. / cellule
≥ 13 120
13 120–13 119
13 120–13 119
13 089–13 119
< 13 089

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

Climate

Mean T°

-2,8°C

Annual rain

1 490mm

Warmest m°

12,0°C

Coldest m°

-19,1°C

Elevation: 2 552 m on average (min 1 757 m, max 3 603 m)

Bioclimatic detailsExpert
Annual mean temp.
-2,8°C
Annual rain
1 490mm
Warmest month
12,0°C
Coldest month
-19,1°C
Mean alt.
2 552m
Min
1 757m
Max
3 603m
Std. dev.
354m
Köppen-Geiger (dominant)
ETPolar, tundra(75 %)Polar

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

Soil & lithology

pH H₂O

6,1

Org. C

53,7g/kg

Clay

18,3%

Sand

44,1%

Silt

37,5%

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

Dominant lithology: mtGLiMaggregated to Maloja

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
82,4g/kg
Clay
17,8%
Sand
43,9%
Silt
38,2%
5–15 cm
pH H₂O
6,0
Org. C
49,1g/kg
Clay
18,3%
Sand
43,7%
Silt
38,0%
15–30 cm
pH H₂O
6,1
Org. C
29,6g/kg
Clay
18,8%
Sand
44,9%
Silt
36,3%

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

Land cover

Forest6.2%
Crops0.1%
Built-up0.1%
Bare soil28.9%
Other (grassland, water…)64.7%

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

Hydrology3 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

35,0km

Basins crossed

3

Max stream order

3

Max drainage

2 615km²

Discharge in basins

3,7m³/s

Mean precip.

1 366mm/an

Mean T°

-0,6°C

Moisture idx

0,69

Max snow

54%

Mean runoff

1 025mm/an

Mean elev. (basins)

2 426m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

11,3%

Pesticides

0,3kg/km²

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

Protected areas8

IUCN IV · 4IUCN Not Reported · 3IUCN Not Assigned · 1

God da Staz

IUCN Not Assigned

Emerald Sites · 2009

8 km²

Complete list

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