Perron des Encombres
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2018
20 km²
Commune · FRA
Saint-Jean-de-Maurienne
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 764
Observations
77 566
Area
11,8km²
Ecological tissue
Sample of 16 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 Saint-Jean-de-Maurienne : 12 espèces reliées par 33 interactions GloBI sur 4 types (connectance 27.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
16
Interactions affichées
33
Connectance
0.275
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
2 764 distinct species · 77 566 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,7°C
Annual rain
894mm
Warmest m°
24,2°C
Coldest m°
-4,5°C
Elevation: 764 m on average (min 556 m, max 1 181 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,7°C
Annual rain
894mm
Warmest month
24,2°C
Coldest month
-4,5°C
Mean alt.
764m
Min
556m
Max
1 181m
Std. dev.
179m
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
6,5
Org. C
69,4g/kg
Clay
24,2%
Sand
35,7%
Silt
40,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Savoie
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
108,8g/kg
Clay
23,2%
Sand
36,2%
Silt
40,6%
5–15 cm
pH H₂O
6,4
Org. C
63,0g/kg
Clay
23,7%
Sand
36,2%
Silt
40,1%
15–30 cm
pH H₂O
6,5
Org. C
36,5g/kg
Clay
25,5%
Sand
34,7%
Silt
39,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest36.4%
Crops2.8%
Built-up5.3%
Bare soil3.4%
Other (grassland, water…)52.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 7 rivers
Hydrology metrics for this exact territory
Stream length here
11,5km
Lake surface here
0,11km²
Basins crossed
1
Max stream order
4
Max drainage
1 980km²
Discharge in basins
0,2m³/s
Mean precip.
1 467mm/an
Mean T°
2,6°C
Moisture idx
0,55
Max snow
42%
Mean runoff
523mm/an
Mean elev. (basins)
2 022m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (7, ord ≥ 4)
- L'Arcord 4len here3.92 km6%total71 km
- Canal des Moulinsord 2len here2.92 km19%total15 km
- Torrent de la Vardazord 1len here1.80 km60%total3 km
- Canal de Vidangeord 4len here0.93 km100%total1 km
- Adduction EDF Arc-Isereord 4len here0.76 km10%total8 km
- Torrent du Merderelord 1len here0.72 km18%total4 km
- L'Arvanord 2len here0.41 km3%total13 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
4hab/km²
Night light
10,6nW
Built-up
535,2%
Pesticides
8,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 2
Perron des Encombres
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2010
20 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
France-specific data (Phase 2)
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.