Sylvania
IUCN IbWilderness · 1987
75 km²
County · USA
United States
Species observed
3 966
Observations
315 273
Area
2 643,3km²
Sample of 32 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).
Tissu écologique de Vilas : 22 espèces reliées par 65 interactions GloBI sur 4 types (connectance 12.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
3 966 distinct species · 315 273 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
4,9°C
Annual rain
841mm
Warmest m°
23,8°C
Coldest m°
-14,3°C
Elevation: 507 m on average (min 475 m, max 562 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
4,9
Org. C
38,1g/kg
Clay
9,0%
Sand
56,1%
Silt
35,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
638,3km
Lake surface here
203,40km²
Basins crossed
16
Max stream order
4
Max drainage
2 725km²
Discharge in basins
59,7m³/s
Mean precip.
819mm/an
Mean T°
4,0°C
Moisture idx
-0,02
Max snow
38%
Mean runoff
539mm/an
Mean elev. (basins)
496m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,3nW
Built-up
19,2%
Pesticides
1,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Wilderness · 1987
75 km²
Wild and Scenic River · 1992
52 km²
Habitat Area
29 km²
Wilderness · 1978
24 km²
Natural Area
21 km²
Wildlife Area
20 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN