Special Areas of Conservation (Habitats Directive) · fra
Vallée de l'Orne et ses affluents
- Area
- 21 km²
- IUCN cat.
- Not Reported
- Year
- 2010
Overview
- Designation
- Special Areas of Conservation (Habitats Directive)
- Established
- 2010
- 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
2 418 distinct species · 39 462 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
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).
Indicateurs du tissu écologique
Tissu écologique de Vallée de l'Orne et ses affluents : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 4 types (connectance 17.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology6 basins · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
29,3km
Basins crossed
6
Max stream order
5
Max drainage
2 320km²
Discharge in basins
1,2m³/s
Mean precip.
747mm/an
Mean T°
9,9°C
Moisture idx
-0,02
Max snow
8%
Mean runoff
578mm/an
Mean elev. (basins)
189m
Watersheds crossing here
- Bassin de l'Ornesub-area1 182,4 km²overlap7.75 km²37%
- Bassin de l'Ornesub-area303,5 km²overlap5.97 km²28%
- Bassin de la Rouvresub-area302,5 km²overlap3.77 km²18%
- Bassin du Noireausub-area523,8 km²overlap3.31 km²16%
- Bassin de la Laizesub-area184,5 km²overlap0.35 km²2%
- Bassin de l'Ornesub-area7,7 km²overlap0.01 km²0%
Rivers / streams (9, ord ≥ 4)
- L'Orneord 5len here16.11 km11%total152 km
- La Rouvreord 3len here6.32 km21%total30 km
- Le Noireauord 4len here3.91 km8%total47 km
- La Gineord 3len here0.73 km10%total8 km
- La Laizeord 2len here0.73 km3%total21 km
- Le Lembronord 2len here0.68 km8%total8 km
- La Coulandreord 1len here0.45 km19%total2 km
- La Fontaine au Héronord 1len here0.24 km8%total3 km
- La Vèreord 3len here0.11 km1%total20 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
- 48.85700, -0.48362
- 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.