Commune · ITA
Alessandria
Italy
Species observed
1 297
Observations
4 551
Area
203,4km²
Ecological tissue
Sample of 44 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).
Indicateurs du tissu écologique
Tissu écologique de Alessandria : 36 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 4 types (connectance 10.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 297 distinct species · 4 551 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,6°C
Annual rain
752mm
Warmest m°
29,9°C
Coldest m°
-1,3°C
Elevation: 103 m on average (min 85 m, max 208 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,2
Org. C
23,7g/kg
Clay
29,5%
Sand
20,0%
Silt
50,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Alessandria
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
61,3km
Basins crossed
4
Max stream order
5
Max drainage
17 453km²
Discharge in basins
69,0m³/s
Mean precip.
888mm/an
Mean T°
12,4°C
Moisture idx
0,02
Max snow
8%
Mean runoff
663mm/an
Mean elev. (basins)
226m
Watersheds crossing here
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
6,8nW
Built-up
299,0%
Pesticides
65,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)