Regional Nature Park · fra
Vallée de la Rance - Côte d\'Emeraude
- Area
- 893 km²
- IUCN cat.
- V
- Year
- 2024
Overview
- Designation
- Regional Nature Park
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 2024
- Managing authority
- French Ministry in charge of the environment. In march 2012, name, acronym and address as follows : Ministère de l'Écologie, du Développement durable, des Transports et du Logement (MEDDTL) 92055 La Défense Cedex France. For regional parks network,
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
7 616 distinct species · 353 314 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 Rance - Côte d\'Emeraude : 23 espèces reliées par 101 interactions GloBI sur 6 types (connectance 19.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology5 basins · 8 lakes · 34 rivers
Hydrology metrics for this exact territory
Stream length here
218,5km
Lake surface here
7,73km²
Basins crossed
5
Max stream order
4
Max drainage
1 409km²
Discharge in basins
9,9m³/s
Mean precip.
751mm/an
Mean T°
11,1°C
Moisture idx
0,03
Max snow
8%
Mean runoff
525mm/an
Mean elev. (basins)
69m
Watersheds crossing here
Lakes (8, top by area)
Rivers / streams (34, ord ≥ 4)
- La Ranceord 4len here24.84 km31%total81 km
- Le Tertre Guyord 1len here19.13 km100%total19 km
- Le Frémurord 1len here16.53 km92%total18 km
- Le Hacord 2len here11.95 km97%total12 km
- Ruisseau de Montafilanord 2len here11.70 km99%total12 km
- Le Guinefortord 2len here11.36 km82%total14 km
- Ruisseau de la Valléeord 4len here10.57 km100%total11 km
- Canal d'Ille-et-Ranceord 4len here9.59 km43%total22 km
- L'Arguenonord 3len here8.75 km15%total60 km
- Ruisseau des Vaux du Moulinord 2len here8.70 km100%total9 km
- Le Floubalayord 1len here7.79 km97%total8 km
- Ruisseau de Coetquenord 4len here7.61 km63%total12 km
22 more river segmentssorted by Strahler order + length
- Le Néalord 3len here7.12 km45%total16 km
- Le Drouetord 2len here6.67 km92%total7 km
- Le Meleucord 2len here6.67 km100%total7 km
- L'Argentelord 1len here5.40 km100%total5 km
- Le Briceord 1len here5.16 km100%total5 km
- Ruisseau de Pont Melinord 2len here4.94 km20%total25 km
- Le Pont Renaultord 1len here4.46 km94%total5 km
- Le Ratord 1len here3.87 km90%total4 km
- Canal des Allemandsord 3len here3.61 km100%total4 km
- Le Linonord 3len here3.09 km17%total18 km
- Le Guébriandord 2len here3.02 km20%total15 km
- Le Guinguenoualord 2len here2.63 km22%total12 km
- Routhouanord 1len here2.43 km32%total8 km
- Biez du Meleucord 3len here2.22 km100%total2 km
- Ruisseau du Gué Parfondord 1len here1.91 km100%total2 km
- Bras de la Ranceord 1len here1.64 km100%total2 km
- Ru de Matignonord 1len here1.33 km82%total2 km
- L'Étanchetord 1len here1.32 km81%total2 km
- La Goutteord 1len here1.10 km58%total2 km
- Ruisseau de Bénodaisord 1len here0.71 km42%total2 km
- Le Frémeurord 2len here0.57 km3%total17 km
- Le Biez Jeanord 1len here0.12 km5%total3 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
- 48.47678, -2.04063
- 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.