Ontologia

Commune · CHE

Affoltern bei Zürich

Switzerland

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

Species observed

4 586

Observations

180 054

Area

5,9km²

Ecological tissue

Sample of 35 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 Affoltern bei Zürich : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 145 interactions GloBI sur 5 types (connectance 23.0%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
145
Connectance
0.230
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

4 586 distinct species · 180 054 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

180 054 obs · 1 cellules
Obs. / cellule
≥ 180 054
180 054–180 053
180 054–180 053
180 054–180 053
< 180 054

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

Climate

Mean T°

10,1°C

Annual rain

1 114mm

Warmest m°

23,4°C

Coldest m°

-2,4°C

Elevation: 458 m on average (min 447 m, max 493 m)

Bioclimatic detailsExpert
Annual mean temp.
10,1°C
Annual rain
1 114mm
Warmest month
23,4°C
Coldest month
-2,4°C
Mean alt.
458m
Min
447m
Max
493m
Std. dev.
13m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate

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

38,0g/kg

Clay

26,0%

Sand

37,5%

Silt

36,5%

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

Dominant lithology: suGLiMaggregated to Zürich

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
59,7g/kg
Clay
25,5%
Sand
37,4%
Silt
37,1%
5–15 cm
pH H₂O
6,2
Org. C
31,6g/kg
Clay
25,8%
Sand
37,7%
Silt
36,6%
15–30 cm
pH H₂O
6,2
Org. C
22,7g/kg
Clay
26,8%
Sand
37,3%
Silt
35,9%

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

Land cover

Forest20.4%
Crops27.7%
Built-up4.0%
Bare soil2.5%
Other (grassland, water…)45.4%

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

Hydrology2 basins · 1 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

2,5km

Lake surface here

0,07km²

Basins crossed

2

Max stream order

1

Max drainage

14 731km²

Discharge in basins

2,6m³/s

Mean precip.

1 103mm/an

Mean T°

8,7°C

Moisture idx

0,31

Max snow

32%

Mean runoff

879mm/an

Mean elev. (basins)

547m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

6hab/km²

Night light

7,1nW

Built-up

398,3%

Pesticides

53,3kg/km²

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

Protected areas8

IUCN Not Assigned · 3IUCN IV · 3IUCN Not Reported · 1IUCN Ia · 1

Chatzensee

IUCN Not Assigned

Emerald Sites · 2009

5 km²

Chatzensee

IUCN IV

Federal Inventory of Fenlands of National Importance · 1994

0 km²

Katzenseen

IUCN Not Assigned

Forest Reserves · 2023

0 km²

Complete list

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