Gehrn
IUCN Not AssignedPrivate Nature Reserves · 2018
0 km²
Commune · CHE
Heiden
Switzerland
DfbCold, no dry season, warm summer(77 %)
Species observed
1 638
Observations
12 878
Area
7,7km²
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 Heiden : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 5 types (connectance 12.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
95
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
1 638 distinct species · 12 878 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
7,6°C
Annual rain
1 551mm
Warmest m°
20,4°C
Coldest m°
-5,9°C
Elevation: 822 m on average (min 639 m, max 981 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
7,6°C
Annual rain
1 551mm
Warmest month
20,4°C
Coldest month
-5,9°C
Mean alt.
822m
Min
639m
Max
981m
Std. dev.
107m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(77 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,7
Org. C
73,6g/kg
Clay
26,7%
Sand
41,4%
Silt
32,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Appenzell Ausserrhoden
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,7
Org. C
114,4g/kg
Clay
26,8%
Sand
41,1%
Silt
32,1%
5–15 cm
pH H₂O
5,7
Org. C
60,9g/kg
Clay
26,7%
Sand
41,2%
Silt
32,1%
15–30 cm
pH H₂O
5,8
Org. C
45,6g/kg
Clay
26,5%
Sand
41,8%
Silt
31,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest32.5%
Crops20.6%
Built-up3.1%
Bare soil0.8%
Other (grassland, water…)43.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
2,6km
Basins crossed
3
Max stream order
2
Max drainage
8 719km²
Discharge in basins
12,2m³/s
Mean precip.
1 113mm/an
Mean T°
8,8°C
Moisture idx
0,29
Max snow
24%
Mean runoff
990mm/an
Mean elev. (basins)
479m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
1,0nW
Built-up
306,4%
Pesticides
57,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Assigned · 2
Löchli
IUCN Not AssignedPrivate Nature Reserves · 2018
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN