Perche
IUCN VRegional Nature Park · 1998
2 014 km²
Department · FRA
France
Species observed
8 932
Observations
2 013 272
Area
5 933,2km²
Sample of 40 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).
Tissu écologique de Eure-et-Loir : 33 espèces reliées par 113 interactions GloBI sur 5 types (connectance 14.5%, 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).
8 932 distinct species · 2 013 272 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
10,8°C
Annual rain
688mm
Warmest m°
23,1°C
Coldest m°
0,9°C
Elevation: 163 m on average (min 56 m, max 288 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,6
Org. C
25,2g/kg
Clay
26,8%
Sand
15,3%
Silt
57,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
1 203,9km
Lake surface here
5,24km²
Basins crossed
14
Max stream order
5
Max drainage
4 653km²
Discharge in basins
81,8m³/s
Mean precip.
649mm/an
Mean T°
10,3°C
Moisture idx
-0,20
Max snow
7%
Mean runoff
242mm/an
Mean elev. (basins)
160m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,7nW
Built-up
77,0%
Pesticides
45,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Regional Nature Park · 1998
2 014 km²
Special Protection Area (Birds Directive) · 2006
717 km²
Regional Nature Park · 1985
659 km²
Special Protection Area (Birds Directive) · 2006
476 km²
Special Areas of Conservation (Habitats Directive) · 2011
13 km²
Special Areas of Conservation (Habitats Directive) · 2011
8 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.