Special Areas of Conservation (Habitats Directive) · fra
Marais de Vilaine
- Area
- 109 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
3 533 distinct species · 142 629 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Marais de Vilaine : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 130 interactions GloBI sur 6 types (connectance 17.5%, 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).
Hydrology7 basins · 7 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
140,7km
Lake surface here
3,30km²
Basins crossed
7
Max stream order
6
Max drainage
10 459km²
Discharge in basins
42,6m³/s
Mean precip.
778mm/an
Mean T°
11,3°C
Moisture idx
-0,02
Max snow
7%
Mean runoff
508mm/an
Mean elev. (basins)
51m
Watersheds crossing here
- Bassin du Donsub-area2 420,8 km²overlap39.79 km²37%
- Bassin de la Vilainesub-area383,8 km²overlap22.65 km²21%
- Bassin de l'Arzsub-area350 km²overlap13.35 km²12%
- Bassin de la Vilainesub-area77,8 km²overlap12.70 km²12%
- Bassin de l'Isacsub-area724,5 km²overlap11.85 km²11%
- Bassin de Canal de Nantes à Brest - L'Oust Canalisésub-area73,9 km²overlap6.25 km²6%
- Bassin de l'Affsub-area736,9 km²overlap2.33 km²2%
Lakes (7, top by area)
Rivers / streams (26, ord ≥ 4)
- La Vilaineord 6len here43.78 km20%total223 km
- Canal de Nantes à Brest - L'Oust Canaliséord 5len here13.60 km20%total68 km
- La Vilaine (Bras Mort de Renac)ord 5len here13.41 km93%total14 km
- L'Arzord 3len here11.20 km21%total53 km
- Canal de Nantes à Brestord 3len here10.30 km41%total25 km
- Le Donord 3len here9.35 km12%total76 km
- L'Isacord 3len here6.78 km17%total40 km
- L'Afford 4len here4.46 km8%total58 km
- Le Dréneucord 2len here4.12 km35%total12 km
- Rivière de l'Étierord 3len here3.38 km49%total7 km
- Ruisseau de Tréveloord 2len here2.77 km22%total13 km
- Ruisseau du Moulin du Rocherord 1len here2.51 km95%total3 km
14 more river segmentssorted by Strahler order + length
- Ruisseau du Rohoord 2len here2.20 km74%total3 km
- L'Oustord 5len here2.14 km3%total76 km
- Le Canutord 2len here1.75 km3%total64 km
- La Chèreord 3len here1.74 km4%total43 km
- Ruisseau de Gléréord 1len here1.60 km36%total4 km
- Le Peuduord 1len here1.49 km19%total8 km
- Ruisseau de l'Orgeraieord 1len here1.44 km62%total2 km
- Ruisseau des Landes du Loupord 1len here0.79 km21%total4 km
- Ruisseau de l'Enferord 1len here0.55 km17%total3 km
- Ruisseau de Beaumontord 1len here0.54 km9%total6 km
- Ruisseau des Sauversord 1len here0.33 km6%total6 km
- Ruisseau de Belle Percheord 5len here0.26 km8%total3 km
- Ruisseau de la Tabergeord 1len here0.24 km10%total2 km
- Ruisseau Saint-Clairord 1len here≈ tangenttotal5 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
- 47.63903, -2.08208
- 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.