Ontologia

Commune · CHE

Trun

Switzerland

DfcCold, no dry season, cold summer(35 %)

Species observed

1 244

Observations

13 047

Area

41,3km²

Ecological tissue

Sample of 26 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 Trun : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 5 types (connectance 17.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
83
Connectance
0.178
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

1 244 distinct species · 13 047 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 047 obs · 1 cellules
Obs. / cellule
≥ 13 047
13 047–13 046
13 047–13 046
13 047–13 046
< 13 047

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 645mm

Warmest m°

16,0°C

Coldest m°

-12,8°C

Elevation: 1 772 m on average (min 932 m, max 2 938 m)

Bioclimatic detailsExpert
Annual mean temp.
1,8°C
Annual rain
1 645mm
Warmest month
16,0°C
Coldest month
-12,8°C
Mean alt.
1 772m
Min
932m
Max
2 938m
Std. dev.
594m
Köppen-Geiger (dominant)
DfcCold, no dry season, cold summer(35 %)Cold

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

Soil & lithology

pH H₂O

5,5

Org. C

69,4g/kg

Clay

22,0%

Sand

39,5%

Silt

38,5%

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

Dominant lithology: suGLiMaggregated to Surselva

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
96,1g/kg
Clay
22,7%
Sand
38,6%
Silt
38,6%
5–15 cm
pH H₂O
5,5
Org. C
69,8g/kg
Clay
22,1%
Sand
39,1%
Silt
38,9%
15–30 cm
pH H₂O
5,5
Org. C
42,3g/kg
Clay
21,2%
Sand
40,7%
Silt
38,1%

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

Land cover

Forest26.8%
Crops2.5%
Built-up0.3%
Bare soil10.1%
Other (grassland, water…)60.3%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

9,7km

Basins crossed

2

Max stream order

4

Max drainage

2 407km²

Discharge in basins

1,5m³/s

Mean precip.

1 636mm/an

Mean T°

1,6°C

Moisture idx

0,69

Max snow

47%

Mean runoff

1 218mm/an

Mean elev. (basins)

1 945m

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

25,7%

Pesticides

48,3kg/km²

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

Protected areas17

IUCN IV · 10IUCN Not Assigned · 5IUCN Ia · 2

Nadéls

IUCN Not Assigned

Forest Reserves · 2023

1 km²

Cahuons

IUCN IV

Federal Inventory of Alluvial Zones of National Importance · 1992

0 km²

Tgiern Grond

IUCN IV

Federal Inventory of Fenlands of National Importance · 1994

0 km²

Punteglias

IUCN Not Assigned

Forest Reserves · 2023

0 km²

Razeil

IUCN Not Assigned

Forest Reserves · 2023

0 km²

Alp Nadels

IUCN IV

Federal Inventory of Fenlands of National Importance · 1994

0 km²

Complete list

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