Ontologia

Department · FRA

Seine-Saint-Denis

France

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

Species observed

9 803

Observations

1 546 269

Area

237,2km²

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 Seine-Saint-Denis : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 120 interactions GloBI sur 6 types (connectance 18.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
120
Connectance
0.180
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

9 803 distinct species · 1 546 269 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 546 269 obs · 20 cellules
Obs. / cellule
≥ 202 711
165 635–202 710
92 950–165 634
74 345–92 949
< 74 345

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

Climate

Mean T°

11,1°C

Annual rain

693mm

Warmest m°

23,5°C

Coldest m°

1,1°C

Elevation: 63 m on average (min 28 m, max 112 m)

Bioclimatic detailsExpert
Annual mean temp.
11,1°C
Annual rain
693mm
Warmest month
23,5°C
Coldest month
1,1°C
Mean alt.
63m
Min
28m
Max
112m
Std. dev.
22m
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

7,2

Org. C

25,3g/kg

Clay

27,5%

Sand

18,9%

Silt

53,6%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
43,6g/kg
Clay
27,1%
Sand
18,8%
Silt
54,1%
5–15 cm
pH H₂O
7,3
Org. C
18,3g/kg
Clay
27,5%
Sand
18,4%
Silt
54,0%
15–30 cm
pH H₂O
7,3
Org. C
14,1g/kg
Clay
27,8%
Sand
19,3%
Silt
52,8%

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

Land cover

Forest6.0%
Crops7.0%
Built-up16.4%
Bare soil0.4%
Other (grassland, water…)70.3%

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

Hydrology2 basins · 0 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

34,8km

Basins crossed

2

Max stream order

6

Max drainage

44 526km²

Discharge in basins

57,8m³/s

Mean precip.

647mm/an

Mean T°

10,9°C

Moisture idx

-0,21

Max snow

3%

Mean runoff

201mm/an

Mean elev. (basins)

84m

Watersheds crossing here

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

Human pressure

Pop. density

38hab/km²

Night light

43,9nW

Built-up

1 634,9%

Pesticides

17,9kg/km²

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

Protected areas7

IUCN IV · 6IUCN Not Reported · 1
Complete list

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

Sub-administrations39

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.