Haute Vallée De Chevreuse
IUCN VRegional Nature Park · 1985
659 km²
Commune · FRA
Raizeux
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
3 485
Observations
108 822
Area
10km²
Ecological tissue
Sample of 36 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 Raizeux : 24 espèces reliées par 145 interactions GloBI sur 6 types (connectance 19.6%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
145
Connectance
0.196
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
3 485 distinct species · 108 822 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,7°C
Annual rain
667mm
Warmest m°
23,1°C
Coldest m°
0,9°C
Elevation: 148 m on average (min 129 m, max 162 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,7°C
Annual rain
667mm
Warmest month
23,1°C
Coldest month
0,9°C
Mean alt.
148m
Min
129m
Max
162m
Std. dev.
10m
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
6,6
Org. C
27,8g/kg
Clay
25,4%
Sand
22,9%
Silt
51,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Yvelines
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
49,5g/kg
Clay
23,1%
Sand
23,5%
Silt
53,3%
5–15 cm
pH H₂O
6,7
Org. C
20,8g/kg
Clay
26,1%
Sand
22,2%
Silt
51,7%
15–30 cm
pH H₂O
6,7
Org. C
13,0g/kg
Clay
26,8%
Sand
23,0%
Silt
50,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest29.6%
Crops54.2%
Built-up0.8%
Bare soil0.2%
Other (grassland, water…)15.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
1,4km
Basins crossed
1
Max stream order
1
Max drainage
2 091km²
Discharge in basins
0,2m³/s
Mean precip.
634mm/an
Mean T°
10,3°C
Moisture idx
-0,21
Max snow
7%
Mean runoff
236mm/an
Mean elev. (basins)
149m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,4nW
Built-up
75,2%
Pesticides
47,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
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.