Special Areas of Conservation (Habitats Directive) · fra
Vallée de la Nizonne
- Area
- 34 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
1 455 distinct species · 5 969 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Vallée de la Nizonne : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 159 interactions GloBI sur 5 types (connectance 23.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology1 basins · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
54,8km
Basins crossed
1
Max stream order
3
Max drainage
2 790km²
Discharge in basins
0,6m³/s
Mean precip.
911mm/an
Mean T°
11,9°C
Moisture idx
-0,04
Max snow
2%
Mean runoff
517mm/an
Mean elev. (basins)
147m
Watersheds crossing here
Rivers / streams (9, ord ≥ 4)
- La Nizonneord 3len here23.59 km53%total44 km
- La Lizonneord 3len here23.20 km66%total35 km
- La Belleord 2len here3.16 km71%total4 km
- La Pudeord 2len here3.06 km16%total19 km
- Canal du Petit Marchaisord 2len here0.84 km10%total8 km
- La Manoreord 1len here0.53 km6%total9 km
- La Fontaine Crapetteord 1len here0.25 km7%total4 km
- Voultronord 2len here0.22 km3%total7 km
- La Dronneord 4len here0.00 km0%total172 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
- 45.39262, 0.25804
- 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.