Special Areas of Conservation (Habitats Directive) · fra
Lignon, Vizezy, Anzon et leurs affluents
- Area
- 24 km²
- IUCN cat.
- Not Reported
- Year
- 2016
Overview
- Designation
- Special Areas of Conservation (Habitats Directive)
- Established
- 2016
- Managing authority
- See European Environment Agency Geospatial Data Catalogue for more information - https://sdi.eea.europa.eu/catalogue/srv/api/records/be2142b0-7dc4-42e3-afac-f7cc5f1a9ac6
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 325 distinct species · 14 907 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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).
Indicateurs du tissu écologique
Tissu écologique de Lignon, Vizezy, Anzon et leurs affluents : 21 espèces + 7 bulles famille, 65 interactions GloBI documentées sur 4 types (connectance 17.2%, filtre Serrano α=0.2). Les 7 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).
Hydrology4 basins · 0 lakes · 19 rivers
Hydrology metrics for this exact territory
Stream length here
20,6km
Basins crossed
4
Max stream order
3
Max drainage
7 435km²
Discharge in basins
0,2m³/s
Mean precip.
786mm/an
Mean T°
8,8°C
Moisture idx
-0,04
Max snow
15%
Mean runoff
272mm/an
Mean elev. (basins)
721m
Watersheds crossing here
Rivers / streams (19, ord ≥ 4)
- Le Lignonord 3len here6.16 km6%total106 km
- Bieford 3len here2.64 km12%total22 km
- L'Anzonord 3len here1.54 km11%total14 km
- Le Lacord 2len here1.32 km9%total15 km
- Le Pralongord 1len here1.31 km10%total13 km
- Bief de l'étang Césarord 1len here1.23 km16%total8 km
- Le Félinesord 2len here1.10 km14%total8 km
- Le Vizeryord 1len here0.74 km11%total7 km
- Ruisseau d'Aubègueord 2len here0.65 km17%total4 km
- Ruisseau de Chagnonord 1len here0.63 km9%total7 km
- Goutte Bualièreord 1len here0.53 km6%total9 km
- le Grand Risord 2len here0.53 km7%total8 km
7 more river segmentssorted by Strahler order + length
- Ruisseau de Bareilleord 1len here0.52 km7%total7 km
- Le Vizézyord 2len here0.43 km5%total8 km
- Le Moingtord 1len here0.41 km4%total10 km
- Tavelord 1len here0.30 km7%total4 km
- Le Trézailletteord 1len here0.24 km10%total2 km
- Le Cibouletord 2len here0.23 km11%total2 km
- Le Lignon de Jeansagnièreord 1len here0.07 km2%total4 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 45.72395, 4.06738
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.