Ontologia

Department · FRA

Val-de-Marne

France

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

Species observed

11 305

Observations

1 474 095

Area

245,7km²

Ecological tissue

Sample of 38 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 Val-de-Marne : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 128 interactions GloBI sur 5 types (connectance 16.4%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
128
Connectance
0.164
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

11 305 distinct species · 1 474 095 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 474 095 obs · 17 cellules
Obs. / cellule
≥ 210 818
202 711–210 817
102 279–202 710
63 903–102 278
< 63 903

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

Climate

Mean T°

11,2°C

Annual rain

695mm

Warmest m°

23,6°C

Coldest m°

1,1°C

Elevation: 67 m on average (min 32 m, max 107 m)

Bioclimatic detailsExpert
Annual mean temp.
11,2°C
Annual rain
695mm
Warmest month
23,6°C
Coldest month
1,1°C
Mean alt.
67m
Min
32m
Max
107m
Std. dev.
25m
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

31,3g/kg

Clay

27,8%

Sand

27,2%

Silt

45,1%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
56,5g/kg
Clay
26,5%
Sand
27,7%
Silt
45,9%
5–15 cm
pH H₂O
6,2
Org. C
23,2g/kg
Clay
27,5%
Sand
27,0%
Silt
45,6%
15–30 cm
pH H₂O
6,2
Org. C
14,1g/kg
Clay
29,4%
Sand
26,9%
Silt
43,8%

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

Land cover

Forest9.5%
Crops9.2%
Built-up14.0%
Bare soil0.4%
Other (grassland, water…)66.8%

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

Hydrology3 basins · 1 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

66,1km

Lake surface here

0,35km²

Basins crossed

3

Max stream order

6

Max drainage

44 526km²

Discharge in basins

36,3m³/s

Mean precip.

646mm/an

Mean T°

10,8°C

Moisture idx

-0,21

Max snow

5%

Mean runoff

199mm/an

Mean elev. (basins)

98m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

31hab/km²

Night light

34,2nW

Built-up

1 402,5%

Pesticides

32,2kg/km²

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

Protected areas4

IUCN IV · 3IUCN Not Reported · 1

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations44

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.