Ontologia

Commune · FRA

Marcey-les-Grèves

France

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

Species observed

1 358

Observations

15 263

Area

7km²

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 Marcey-les-Grèves : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 6 types (connectance 16.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
102
Connectance
0.162
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

1 358 distinct species · 15 263 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

15 263 obs · 3 cellules
Obs. / cellule
≥ 10 650
10 650–10 649
10 650–10 649
2 803–10 649
< 2 803

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

Climate

Mean T°

11,6°C

Annual rain

974mm

Warmest m°

20,6°C

Coldest m°

3,8°C

Elevation: 19 m on average (min 8 m, max 45 m)

Bioclimatic detailsExpert
Annual mean temp.
11,6°C
Annual rain
974mm
Warmest month
20,6°C
Coldest month
3,8°C
Mean alt.
19m
Min
8m
Max
45m
Std. dev.
6m
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

6,2

Org. C

35,3g/kg

Clay

23,5%

Sand

20,9%

Silt

55,6%

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

Dominant lithology: ssGLiMaggregated to Manche

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
57,9g/kg
Clay
21,8%
Sand
21,0%
Silt
57,3%
5–15 cm
pH H₂O
6,2
Org. C
29,6g/kg
Clay
24,6%
Sand
19,9%
Silt
55,5%
15–30 cm
pH H₂O
6,2
Org. C
18,3g/kg
Clay
24,2%
Sand
21,8%
Silt
54,0%

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

Land cover

Forest12.1%
Crops43.6%
Built-up2.3%
Bare soil0.9%
Other (grassland, water…)41.1%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

5,8km

Basins crossed

1

Max stream order

1

Max drainage

469km²

Discharge in basins

0,2m³/s

Mean precip.

780mm/an

Mean T°

10,6°C

Moisture idx

0,05

Max snow

6%

Mean runoff

751mm/an

Mean elev. (basins)

144m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

232,3%

Pesticides

44,8kg/km²

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

Protected areas3

IUCN Not Reported · 3🌊 Marine · 3

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.