Lottan
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance · 2010
0 km²
Commune · CHE
Castasegna
Switzerland
ETPolar, tundra(50 %)
Species observed
316
Observations
580
Area
6,6km²
Ecological tissue
Sample of 24 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 Castasegna : 18 espèces reliées par 61 interactions GloBI sur 5 types (connectance 14.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
61
Connectance
0.140
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
316 distinct species · 580 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
0,0°C
Annual rain
1 737mm
Warmest m°
14,4°C
Coldest m°
-16,0°C
Elevation: 2 080 m on average (min 1 147 m, max 2 654 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
0,0°C
Annual rain
1 737mm
Warmest month
14,4°C
Coldest month
-16,0°C
Mean alt.
2 080m
Min
1 147m
Max
2 654m
Std. dev.
516m
Köppen-Geiger (dominant)
ETPolar, tundra(50 %)Polar
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
70,7g/kg
Clay
19,2%
Sand
47,1%
Silt
33,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Maloja
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,5
Org. C
101,7g/kg
Clay
19,5%
Sand
46,7%
Silt
33,8%
5–15 cm
pH H₂O
5,6
Org. C
67,1g/kg
Clay
18,8%
Sand
47,3%
Silt
33,9%
15–30 cm
pH H₂O
5,7
Org. C
43,2g/kg
Clay
19,1%
Sand
47,3%
Silt
33,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest23.9%
Crops0.6%
Built-up0.1%
Bare soil24.8%
Other (grassland, water…)50.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
2
Max drainage
1 681km²
Discharge in basins
0,2m³/s
Mean precip.
1 324mm/an
Mean T°
3,5°C
Moisture idx
0,56
Max snow
49%
Mean runoff
1 118mm/an
Mean elev. (basins)
1 746m
Watersheds crossing here
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
5,1%
Pesticides
67,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN IV · 3
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN