Ontologia

Commune · FRA

Marchezais

France

CfbTemperate, no dry season, warm summer(100 %)

Species observed

878

Observations

12 620

Area

2,2km²

Ecological tissue

Sample of 30 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 Marchezais : 23 espèces reliées par 85 interactions GloBI sur 6 types (connectance 19.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
85
Connectance
0.195
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

878 distinct species · 12 620 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 620 obs · 2 cellules
Obs. / cellule
≥ 8 265
8 265–8 264
8 265–8 264
8 265–8 264
< 8 265

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

10,8°C

Annual rain

687mm

Warmest m°

23,0°C

Coldest m°

1,1°C

Elevation: 136 m on average (min 134 m, max 139 m)

Bioclimatic detailsExpert
Annual mean temp.
10,8°C
Annual rain
687mm
Warmest month
23,0°C
Coldest month
1,1°C
Mean alt.
136m
Min
134m
Max
139m
Std. dev.
1m
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

7,0

Org. C

23,7g/kg

Clay

22,2%

Sand

16,3%

Silt

61,6%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: scGLiMaggregated to Eure-et-Loir

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
37,7g/kg
Clay
20,9%
Sand
16,1%
Silt
63,1%
5–15 cm
pH H₂O
7,0
Org. C
17,5g/kg
Clay
21,3%
Sand
15,7%
Silt
63,0%
15–30 cm
pH H₂O
7,0
Org. C
15,8g/kg
Clay
24,3%
Sand
17,0%
Silt
58,7%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest0.2%
Crops79.2%
Built-up2.2%
Bare soil0.1%
Other (grassland, water…)18.3%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology1 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

1

Max drainage

4 550km²

Discharge in basins

0,1m³/s

Mean precip.

626mm/an

Mean T°

10,2°C

Moisture idx

-0,20

Max snow

7%

Mean runoff

324mm/an

Mean elev. (basins)

123m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

1hab/km²

Night light

0,7nW

Built-up

221,0%

Pesticides

44,7kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

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.