Ontologia

Subdivision · FRA

Cergy-Sud

France

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

Species observed

2 188

Observations

39 711

Area

4,4km²

Ecological tissue

Sample of 34 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 Cergy-Sud : 23 espèces reliées par 131 interactions GloBI sur 6 types (connectance 23.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
131
Connectance
0.234
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

2 188 distinct species · 39 711 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

39 711 obs · 2 cellules
Obs. / cellule
≥ 25 457
25 457–25 456
25 457–25 456
25 457–25 456
< 25 457

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

656mm

Warmest m°

23,3°C

Coldest m°

1,3°C

Elevation: 44 m on average (min 31 m, max 51 m)

Bioclimatic detailsExpert
Annual mean temp.
11,2°C
Annual rain
656mm
Warmest month
23,3°C
Coldest month
1,3°C
Mean alt.
44m
Min
31m
Max
51m
Std. dev.
7m
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

20,8g/kg

Clay

24,0%

Sand

34,6%

Silt

41,4%

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

Dominant lithology: scGLiMaggregated to Val-d'Oise

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
32,1g/kg
Clay
23,9%
Sand
34,8%
Silt
41,4%
5–15 cm
pH H₂O
7,1
Org. C
16,7g/kg
Clay
23,0%
Sand
35,2%
Silt
41,9%
15–30 cm
pH H₂O
7,1
Org. C
13,5g/kg
Clay
25,1%
Sand
33,9%
Silt
41,0%

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

Land cover

Forest7.8%
Crops3.5%
Built-up13.5%
Bare soil0.1%
Other (grassland, water…)75.1%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,5km

Basins crossed

2

Max stream order

5

Max drainage

44 526km²

Discharge in basins

0,6m³/s

Mean precip.

648mm/an

Mean T°

10,6°C

Moisture idx

-0,19

Max snow

6%

Mean runoff

219mm/an

Mean elev. (basins)

93m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

22hab/km²

Night light

17,8nW

Built-up

1 350,8%

Pesticides

30,6kg/km²

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

Sub-administrations1

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.