Ontologia

Statutory City · AUT

Graz Stadt

Austria

DfbCold, no dry season, warm summer(100 %)

Species observed

10 908

Observations

181 444

Area

127,6km²

Ecological tissue

Sample of 48 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 Graz Stadt : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 137 interactions GloBI sur 5 types (connectance 11.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
49
Interactions affichées
137
Connectance
0.117
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

10 908 distinct species · 181 444 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

181 444 obs · 5 cellules
Obs. / cellule
≥ 79 762
79 762–79 761
37 081–79 761
24 369–37 080
< 24 369

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

Climate

Mean T°

9,4°C

Annual rain

876mm

Warmest m°

24,3°C

Coldest m°

-6,3°C

Elevation: 415 m on average (min 330 m, max 608 m)

Bioclimatic detailsExpert
Annual mean temp.
9,4°C
Annual rain
876mm
Warmest month
24,3°C
Coldest month
-6,3°C
Mean alt.
415m
Min
330m
Max
608m
Std. dev.
67m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold

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

Soil & lithology

pH H₂O

5,6

Org. C

40,6g/kg

Clay

22,5%

Sand

34,9%

Silt

42,6%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
58,2g/kg
Clay
22,6%
Sand
34,9%
Silt
42,6%
5–15 cm
pH H₂O
5,6
Org. C
40,4g/kg
Clay
22,3%
Sand
34,8%
Silt
42,9%
15–30 cm
pH H₂O
5,7
Org. C
23,1g/kg
Clay
22,7%
Sand
35,1%
Silt
42,3%

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

Land cover

Forest28.0%
Crops9.6%
Built-up9.1%
Bare soil0.3%
Other (grassland, water…)53.0%

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

Hydrology2 basins · 0 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

42,8km

Basins crossed

2

Max stream order

5

Max drainage

7 284km²

Discharge in basins

13,7m³/s

Mean precip.

961mm/an

Mean T°

6,6°C

Moisture idx

0,17

Max snow

26%

Mean runoff

432mm/an

Mean elev. (basins)

685m

Watersheds crossing here

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

Human pressure

Pop. density

14hab/km²

Night light

10,7nW

Built-up

909,0%

Pesticides

24,2kg/km²

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

Protected areas28

IUCN IV · 12IUCN III · 11IUCN V · 3IUCN Not Reported · 2
Complete list

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

Sub-administrations1