Ontologia

Autonomous Region · ita

Valle d'Aosta

Italy

ETPolar, tundra(37 %)

Species observed

7 700

Observations

297 871

Area

3 248,1km²

Ecological tissue

Sample of 21 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 Valle d'Aosta : 10 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 5 types (connectance 19.1%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
62
Connectance
0.191
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

7 700 distinct species · 297 871 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

297 871 obs · 123 cellules
Obs. / cellule
≥ 12 166
6 452–12 165
1 947–6 451
1 163–1 946
< 1 163

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

Climate

Mean T°

0,8°C

Annual rain

1 556mm

Warmest m°

15,2°C

Coldest m°

-13,6°C

Elevation: 2 098 m on average (min 356 m, max 4 210 m)

Bioclimatic detailsExpert
Annual mean temp.
0,8°C
Annual rain
1 556mm
Warmest month
15,2°C
Coldest month
-13,6°C
Mean alt.
2 098m
Min
356m
Max
4 210m
Std. dev.
684m
Köppen-Geiger (dominant)
ETPolar, tundra(37 %)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

73,6g/kg

Clay

19,9%

Sand

39,9%

Silt

40,2%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
110,2g/kg
Clay
19,3%
Sand
40,0%
Silt
40,7%
5–15 cm
pH H₂O
6,2
Org. C
63,7g/kg
Clay
19,2%
Sand
40,1%
Silt
40,7%
15–30 cm
pH H₂O
6,2
Org. C
46,9g/kg
Clay
21,2%
Sand
39,6%
Silt
39,2%

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

Land cover

Forest22.6%
Crops0.8%
Built-up0.3%
Bare soil18.9%
Other (grassland, water…)57.4%

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

Hydrology18 basins · 6 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

817,1km

Lake surface here

2,14km²

Basins crossed

18

Max stream order

5

Max drainage

9 254km²

Discharge in basins

265,5m³/s

Mean precip.

1 570mm/an

Mean T°

1,8°C

Moisture idx

0,61

Max snow

57%

Mean runoff

871mm/an

Mean elev. (basins)

2 099m

Watersheds crossing here

9 more basins

Lakes (6, top by area)

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,8nW

Built-up

31,8%

Pesticides

56,6kg/km²

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

Protected areas55

IUCN Not Reported · 39IUCN IV · 12IUCN II · 2IUCN V · 2

La Vanoise

IUCN Not Reported

Special Protection Area (Birds Directive) · 2018

536 km²

Vanoise

IUCN II

National Park - Core Area · 1963

531 km²

Complete list

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

Sub-administrations74