Ontologia

Commune · GRC

Alexandria

Greece

CsaTemperate, dry summer, hot summer(59 %)

Species observed

674

Observations

6 879

Area

482,2km²

Ecological tissue

Sample of 34 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 Alexandria : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 6 types (connectance 12.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
85
Connectance
0.128
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

674 distinct species · 6 879 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 879 obs · 13 cellules
Obs. / cellule
≥ 5 190
288–5 189
226–287
127–225
< 127

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

Climate

Mean T°

15,9°C

Annual rain

551mm

Warmest m°

31,1°C

Coldest m°

1,4°C

Elevation: 15 m on average (min -4 m, max 267 m)

Bioclimatic detailsExpert
Annual mean temp.
15,9°C
Annual rain
551mm
Warmest month
31,1°C
Coldest month
1,4°C
Mean alt.
15m
Min
-4m
Max
267m
Std. dev.
32m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(59 %)Temperate

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

Soil & lithology

pH H₂O

7,9

Org. C

20,9g/kg

Clay

35,9%

Sand

18,9%

Silt

45,2%

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

Dominant lithology: scGLiMaggregated to Central Macedonia

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
33,0g/kg
Clay
34,6%
Sand
19,3%
Silt
46,2%
5–15 cm
pH H₂O
8,0
Org. C
15,3g/kg
Clay
35,5%
Sand
18,7%
Silt
45,8%
15–30 cm
pH H₂O
7,9
Org. C
14,3g/kg
Clay
37,6%
Sand
18,7%
Silt
43,7%

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

Land cover

Forest7.4%
Crops61.5%
Built-up1.1%
Bare soil2.7%
Other (grassland, water…)27.3%

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

Hydrology3 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

77,7km

Basins crossed

3

Max stream order

5

Max drainage

6 748km²

Discharge in basins

7,1m³/s

Mean precip.

544mm/an

Mean T°

12,5°C

Moisture idx

-0,49

Max snow

5%

Mean runoff

193mm/an

Mean elev. (basins)

511m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

2,0nW

Built-up

114,4%

Pesticides

24,8kg/km²

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

Protected areas12

IUCN IV · 7IUCN Not Reported · 3IUCN VI · 2🌊 Marine · 8
Complete list

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