La Rèche
IUCN IVFederal Inventory of Fenlands of National Importance · 2017
1 km²
Commune · CHE
Nax
Switzerland
ETPolar, tundra(42 %)
Species observed
4 301
Observations
56 982
Area
25,1km²
Ecological tissue
Sample of 30 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 Nax : 25 espèces + 5 bulles famille, 38 interactions GloBI documentées sur 7 types (connectance 8.7%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
30
Interactions affichées
38
Connectance
0.087
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
4 301 distinct species · 56 982 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
0,1°C
Annual rain
1 181mm
Warmest m°
15,2°C
Coldest m°
-16,3°C
Elevation: 1 999 m on average (min 635 m, max 2 783 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
0,1°C
Annual rain
1 181mm
Warmest month
15,2°C
Coldest month
-16,3°C
Mean alt.
1 999m
Min
635m
Max
2 783m
Std. dev.
636m
Köppen-Geiger (dominant)
ETPolar, tundra(42 %)Polar
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,0
Org. C
61,8g/kg
Clay
20,2%
Sand
40,4%
Silt
39,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Hérens
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
100,4g/kg
Clay
19,9%
Sand
40,1%
Silt
40,0%
5–15 cm
pH H₂O
6,1
Org. C
52,7g/kg
Clay
20,3%
Sand
40,2%
Silt
39,5%
15–30 cm
pH H₂O
6,1
Org. C
32,3g/kg
Clay
20,5%
Sand
41,0%
Silt
38,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest29.3%
Crops0.5%
Built-up0.2%
Bare soil17.4%
Other (grassland, water…)52.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
2,9km
Basins crossed
3
Max stream order
1
Max drainage
2 794km²
Discharge in basins
19,9m³/s
Mean precip.
1 321mm/an
Mean T°
4,4°C
Moisture idx
0,42
Max snow
52%
Mean runoff
925mm/an
Mean elev. (basins)
1 472m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
24,3%
Pesticides
4,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN IV · 5
Ar du Tsan
IUCN IVFederal Inventory of Fenlands of National Importance · 1998
0 km²
La Crêta
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance · 2010
0 km²
Coma
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance · 2010
0 km²
Pramilon
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance · 2010
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN