Vallée de l'Eure de Maintenon à Anet et vallons affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
8 km²
Commune · FRA
Coulombs
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 675
Observations
41 664
Area
12,6km²
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 Coulombs : 29 espèces reliées par 90 interactions GloBI sur 5 types (connectance 17.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
33
Interactions affichées
90
Connectance
0.171
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
1 675 distinct species · 41 664 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,9°C
Annual rain
621mm
Warmest m°
23,2°C
Coldest m°
1,1°C
Elevation: 123 m on average (min 100 m, max 135 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,9°C
Annual rain
621mm
Warmest month
23,2°C
Coldest month
1,1°C
Mean alt.
123m
Min
100m
Max
135m
Std. dev.
9m
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
6,7
Org. C
31,6g/kg
Clay
27,7%
Sand
17,0%
Silt
55,3%
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
6,6
Org. C
56,5g/kg
Clay
25,9%
Sand
17,2%
Silt
56,9%
5–15 cm
pH H₂O
6,7
Org. C
20,6g/kg
Clay
27,7%
Sand
16,5%
Silt
55,9%
15–30 cm
pH H₂O
6,7
Org. C
17,7g/kg
Clay
29,6%
Sand
17,3%
Silt
53,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.7%
Crops71.2%
Built-up1.1%
Bare soil0.3%
Other (grassland, water…)17.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
4,4km
Lake surface here
0,12km²
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
Lakes (1, top by area)
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
1,3nW
Built-up
112,2%
Pesticides
44,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 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.