Ontologia

Commune · CHE

Silvaplana

Switzerland

ETPolar, tundra(68 %)

Species observed

520

Observations

2 194

Area

43,8km²

Ecological tissue

Sample of 32 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 Silvaplana : 23 espèces reliées par 57 interactions GloBI sur 5 types (connectance 9.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
57
Connectance
0.096
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

520 distinct species · 2 194 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 194 obs · 1 cellules
Obs. / cellule
≥ 2 194
2 194–2 193
2 194–2 193
2 194–2 193
< 2 194

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

Climate

Mean T°

-1,8°C

Annual rain

1 659mm

Warmest m°

12,9°C

Coldest m°

-18,0°C

Elevation: 2 390 m on average (min 1 826 m, max 2 976 m)

Bioclimatic detailsExpert
Annual mean temp.
-1,8°C
Annual rain
1 659mm
Warmest month
12,9°C
Coldest month
-18,0°C
Mean alt.
2 390m
Min
1 826m
Max
2 976m
Std. dev.
341m
Köppen-Geiger (dominant)
ETPolar, tundra(68 %)Polar

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

Soil & lithology

pH H₂O

5,7

Org. C

60,3g/kg

Clay

18,7%

Sand

44,0%

Silt

37,3%

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
5,7
Org. C
95,0g/kg
Clay
19,0%
Sand
43,4%
Silt
37,6%
5–15 cm
pH H₂O
5,8
Org. C
52,9g/kg
Clay
18,1%
Sand
44,0%
Silt
37,9%
15–30 cm
pH H₂O
5,8
Org. C
32,9g/kg
Clay
19,0%
Sand
44,7%
Silt
36,2%

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

Land cover

Forest10.6%
Crops0.3%
Built-up0.2%
Bare soil28.1%
Other (grassland, water…)60.8%

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

Hydrology2 basins · 3 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

16,2km

Lake surface here

1,62km²

Basins crossed

2

Max stream order

3

Max drainage

1 681km²

Discharge in basins

1,4m³/s

Mean precip.

1 367mm/an

Mean T°

-0,6°C

Moisture idx

0,69

Max snow

54%

Mean runoff

1 025mm/an

Mean elev. (basins)

2 424m

Watersheds crossing here

Lakes (3, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

21,9%

Pesticides

5,1kg/km²

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

Protected areas9

IUCN Not Assigned · 4IUCN IV · 4IUCN Ia · 1

Albana

IUCN IV

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

0 km²

Albanatscha

IUCN IV

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

0 km²

Albanella

IUCN IV

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

0 km²

Lej Marsch

IUCN Not Assigned

Private Nature Reserves · 2018

0 km²

Complete list

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