Ontologia

Commune · ITA

Grezzana

Italy

CfaTemperate, no dry season, hot summer(60 %)

Species observed

296

Observations

517

Area

49,6km²

Ecological tissue

Sample of 38 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 Grezzana : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 109 interactions GloBI sur 6 types (connectance 13.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
109
Connectance
0.133
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

296 distinct species · 517 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

517 obs · 1 cellules
Obs. / cellule
≥ 517
517–516
517–516
517–516
< 517

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

Climate

Mean T°

11,7°C

Annual rain

1 092mm

Warmest m°

25,6°C

Coldest m°

-2,3°C

Elevation: 462 m on average (min 170 m, max 785 m)

Bioclimatic detailsExpert
Annual mean temp.
11,7°C
Annual rain
1 092mm
Warmest month
25,6°C
Coldest month
-2,3°C
Mean alt.
462m
Min
170m
Max
785m
Std. dev.
136m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(60 %)Temperate

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

Soil & lithology

pH H₂O

6,7

Org. C

37,4g/kg

Clay

25,8%

Sand

33,2%

Silt

41,1%

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

Dominant lithology: scGLiMaggregated to Verona

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
60,7g/kg
Clay
24,6%
Sand
33,3%
Silt
42,0%
5–15 cm
pH H₂O
6,8
Org. C
30,7g/kg
Clay
24,6%
Sand
32,6%
Silt
42,9%
15–30 cm
pH H₂O
6,8
Org. C
20,7g/kg
Clay
28,1%
Sand
33,7%
Silt
38,3%

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

Land cover

Forest40.8%
Crops12.4%
Built-up2.7%
Bare soil1.4%
Other (grassland, water…)42.6%

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

Hydrology2 basins · 0 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

17,7km

Basins crossed

2

Max stream order

2

Max drainage

11 081km²

Discharge in basins

0,8m³/s

Mean precip.

812mm/an

Mean T°

9,3°C

Moisture idx

0,02

Max snow

11%

Mean runoff

447mm/an

Mean elev. (basins)

763m

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

Human pressure

Pop. density

1hab/km²

Night light

3,4nW

Built-up

273,7%

Pesticides

63,2kg/km²

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

Protected areas2

IUCN IV · 1IUCN Not Reported · 1

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