Gorges de l'Allier et affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2019
160 km²
Commune · FRA
France
Species observed
644
Observations
4 518
Area
29,3km²
Sample of 29 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 Saint-Jean-de-Nay : 23 espèces + 6 bulles famille, 76 interactions GloBI documentées sur 5 types (connectance 18.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
644 distinct species · 4 518 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
7,9°C
Annual rain
990mm
Warmest m°
21,2°C
Coldest m°
-3,0°C
Elevation: 1 041 m on average (min 888 m, max 1 161 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,0
Org. C
45,9g/kg
Clay
23,3%
Sand
44,5%
Silt
32,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Haute-Loire
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
3,4km
Basins crossed
3
Max stream order
1
Max drainage
1 972km²
Discharge in basins
0,5m³/s
Mean precip.
767mm/an
Mean T°
7,9°C
Moisture idx
-0,04
Max snow
16%
Mean runoff
391mm/an
Mean elev. (basins)
967m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,2nW
Built-up
37,1%
Pesticides
40,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Special Areas of Conservation (Habitats Directive) · 2019
160 km²
Special Areas of Conservation (Habitats Directive) · 2008
2 km²
Biotope Protection Order · 1987
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.