Haute Vallée De Chevreuse
IUCN VRegional Nature Park · 1985
659 km²
Subdivision · FRA
Bièvres
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
6 676
Observations
515 522
Area
46km²
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Bièvres : 21 espèces reliées par 102 interactions GloBI sur 6 types (connectance 19.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
33
Interactions affichées
102
Connectance
0.193
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
6 676 distinct species · 515 522 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,8°C
Annual rain
716mm
Warmest m°
23,1°C
Coldest m°
0,9°C
Elevation: 138 m on average (min 67 m, max 173 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,8°C
Annual rain
716mm
Warmest month
23,1°C
Coldest month
0,9°C
Mean alt.
138m
Min
67m
Max
173m
Std. dev.
22m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,3
Org. C
35,6g/kg
Clay
25,7%
Sand
20,1%
Silt
54,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Essonne
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
62,0g/kg
Clay
24,9%
Sand
20,5%
Silt
54,6%
5–15 cm
pH H₂O
6,4
Org. C
26,0g/kg
Clay
26,0%
Sand
19,9%
Silt
54,2%
15–30 cm
pH H₂O
6,4
Org. C
18,9g/kg
Clay
26,3%
Sand
20,0%
Silt
53,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest19.8%
Crops44.6%
Built-up3.8%
Bare soil0.5%
Other (grassland, water…)31.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 1 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
7,6km
Lake surface here
0,58km²
Basins crossed
2
Max stream order
2
Max drainage
44 526km²
Discharge in basins
10,8m³/s
Mean precip.
646mm/an
Mean T°
10,9°C
Moisture idx
-0,21
Max snow
5%
Mean runoff
200mm/an
Mean elev. (basins)
92m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
6,7nW
Built-up
375,2%
Pesticides
37,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN V · 1IUCN Not Reported · 1IUCN Ia · 1
Massif de Rambouillet et zones humides proches
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2006
171 km²
Verrières-Le-Buisson
IUCN IaForest Integral Biological Reserve · 2010
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
Sub-administrations4
France-specific data (Phase 2)
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.