Regional Nature Park · fra
Haute Vallée De Chevreuse
- Area
- 659 km²
- IUCN cat.
- V
- Year
- 1985
Overview
- Designation
- Regional Nature Park
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1985
- 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
10 879 distinct species · 1 956 246 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Haute Vallée De Chevreuse : 32 espèces reliées par 110 interactions GloBI sur 6 types (connectance 14.8%, filtre Serrano α=0.2). 7 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 · 5 lakes · 25 rivers
Hydrology metrics for this exact territory
Stream length here
143,6km
Lake surface here
1,44km²
Basins crossed
6
Max stream order
2
Max drainage
44 526km²
Discharge in basins
44,3m³/s
Mean precip.
640mm/an
Mean T°
10,5°C
Moisture idx
-0,21
Max snow
7%
Mean runoff
216mm/an
Mean elev. (basins)
123m
Watersheds crossing here
- Bassin de l'Yerressub-area2 200,5 km²overlap396.28 km²60%
- Bassin de la Mauldresub-area404,8 km²overlap96.70 km²15%
- Bassin de la Drouettesub-area687,1 km²overlap79.96 km²12%
- Bassin de l'Euresub-area1 042,9 km²overlap74.24 km²11%
- Bassin de la Voisesub-area455,5 km²overlap10.69 km²2%
- Bassin de la Seinesub-area1 088,5 km²overlap0.97 km²0%
Lakes (5, top by area)
Rivers / streams (25, ord ≥ 4)
- L'Yvetteord 2len here15.83 km87%total18 km
- L'Aulneord 2len here15.23 km72%total21 km
- La Guesleord 1len here12.81 km92%total14 km
- Ru des Vauxord 2len here11.64 km100%total12 km
- La Rémardeord 2len here10.79 km30%total37 km
- Ruisseau des Ponts Quentinord 1len here9.45 km100%total9 km
- Le Rhodonord 1len here7.40 km100%total7 km
- La Rabetteord 1len here7.18 km100%total7 km
- La Mérantaiseord 2len here6.82 km31%total22 km
- La Glorietteord 2len here4.87 km97%total5 km
- Ruisseau de Prédecelleord 1len here4.74 km41%total12 km
- La Mauldreord 3len here4.59 km18%total25 km
13 more river segmentssorted by Strahler order + length
- Ru d'Élancourtord 1len here4.45 km98%total5 km
- La Vesgreord 2len here4.41 km11%total42 km
- La Guyonneord 2len here4.37 km68%total6 km
- Grand Aqueduc du Perrayord 1len here3.60 km100%total4 km
- Ruisseau du Lieutelord 2len here3.57 km36%total10 km
- La Charmoiseord 1len here2.09 km77%total3 km
- Le Grapelinord 2len here2.08 km45%total5 km
- La Salmouilleord 3len here2.07 km15%total14 km
- Rigole du Perrayord 1len here1.94 km100%total2 km
- Ruisseau de Montabéord 1len here1.62 km100%total2 km
- Le Guyonord 1len here1.39 km100%total1 km
- Le Perrayord 1len here0.39 km3%total14 km
- La Drouetteord 4len here0.32 km1%total32 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
- 48.67582, 1.93816
- 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.