Ontologia

District · CHE

Surselva

Switzerland

ETPolar, tundra(43 %)

Species observed

8 668

Observations

429 102

Area

1 350km²

Ecological tissue

Sample of 29 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 Surselva : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 131 interactions GloBI sur 5 types (connectance 23.4%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
131
Connectance
0.234
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

8 668 distinct species · 429 102 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

429 102 obs · 39 cellules
Obs. / cellule
≥ 37 264
25 368–37 263
14 253–25 367
8 961–14 252
< 8 961

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

Climate

Mean T°

0,6°C

Annual rain

1 932mm

Warmest m°

14,9°C

Coldest m°

-14,2°C

Elevation: 1 956 m on average (min 732 m, max 3 194 m)

Bioclimatic detailsExpert
Annual mean temp.
0,6°C
Annual rain
1 932mm
Warmest month
14,9°C
Coldest month
-14,2°C
Mean alt.
1 956m
Min
732m
Max
3 194m
Std. dev.
514m
Köppen-Geiger (dominant)
ETPolar, tundra(43 %)Polar

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

Soil & lithology

pH H₂O

5,4

Org. C

72,0g/kg

Clay

22,0%

Sand

39,8%

Silt

38,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
105,3g/kg
Clay
22,8%
Sand
39,0%
Silt
38,2%
5–15 cm
pH H₂O
5,4
Org. C
69,2g/kg
Clay
22,0%
Sand
39,6%
Silt
38,4%
15–30 cm
pH H₂O
5,4
Org. C
41,6g/kg
Clay
21,3%
Sand
40,8%
Silt
37,9%

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

Land cover

Forest19.8%
Crops0.8%
Built-up0.2%
Bare soil13.6%
Other (grassland, water…)65.7%

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

Hydrology5 basins · 4 lakes · 32 rivers

Hydrology metrics for this exact territory

Stream length here

399,5km

Lake surface here

2,28km²

Basins crossed

5

Max stream order

5

Max drainage

2 407km²

Discharge in basins

48,8m³/s

Mean precip.

1 639mm/an

Mean T°

1,6°C

Moisture idx

0,69

Max snow

49%

Mean runoff

1 220mm/an

Mean elev. (basins)

1 950m

Watersheds crossing here

Lakes (4, top by area)

Rivers / streams (32, ord ≥ 4)

20 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

17,4%

Pesticides

19,8kg/km²

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

Protected areas100

IUCN IV · 68IUCN Not Assigned · 30IUCN Not Applicable · 1IUCN Not Reported · 1

Greina

IUCN IV

Federal Hunting Reserves · 1992

60 km²

Fellital

IUCN IV

Federal Hunting Reserves · 1992

40 km²

Beverin

IUCN IV

Federal Hunting Reserves · 1992

32 km²

Complete list

+ 40 protected areas (top 60 shown)

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

Sub-administrations43