Vallée de l'Eure de Maintenon à Anet et vallons affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
8 km²
Commune · FRA
Chaudon
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 333
Observations
29 715
Area
11,7km²
Ecological tissue
Sample of 27 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 Chaudon : 18 espèces reliées par 81 interactions GloBI sur 5 types (connectance 20.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
29
Interactions affichées
81
Connectance
0.200
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
1 333 distinct species · 29 715 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,9°C
Annual rain
617mm
Warmest m°
23,2°C
Coldest m°
1,1°C
Elevation: 117 m on average (min 100 m, max 141 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,9°C
Annual rain
617mm
Warmest month
23,2°C
Coldest month
1,1°C
Mean alt.
117m
Min
100m
Max
141m
Std. dev.
12m
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
26,0g/kg
Clay
26,3%
Sand
18,5%
Silt
55,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Eure-et-Loir
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
45,7g/kg
Clay
24,7%
Sand
18,4%
Silt
56,9%
5–15 cm
pH H₂O
6,6
Org. C
16,7g/kg
Clay
26,2%
Sand
17,8%
Silt
55,8%
15–30 cm
pH H₂O
6,6
Org. C
15,6g/kg
Clay
27,9%
Sand
19,1%
Silt
53,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest17.4%
Crops64.0%
Built-up1.3%
Bare soil0.1%
Other (grassland, water…)17.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
4,9km
Basins crossed
1
Max stream order
4
Max drainage
2 091km²
Discharge in basins
0,3m³/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 (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
1,6nW
Built-up
124,7%
Pesticides
45,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
cote du bois de ruffin (la)
IUCN IVLand acquired by a regional conservatory of natural areas · 2017
0 km²
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.