Sites de Seine-Saint-Denis
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2019
12 km²
Commune · FRA
Sevran
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 900
Observations
117 086
Area
6,8km²
Ecological tissue
Sample of 37 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 Sevran : 33 espèces reliées par 103 interactions GloBI sur 6 types (connectance 15.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
103
Connectance
0.155
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
2 900 distinct species · 117 086 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,1°C
Annual rain
682mm
Warmest m°
23,5°C
Coldest m°
1,1°C
Elevation: 57 m on average (min 51 m, max 67 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,1°C
Annual rain
682mm
Warmest month
23,5°C
Coldest month
1,1°C
Mean alt.
57m
Min
51m
Max
67m
Std. dev.
3m
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
Clay
27,4%
Sand
18,8%
Silt
53,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Seine-Saint-Denis
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,0
Clay
27,1%
Sand
18,8%
Silt
54,1%
5–15 cm
pH H₂O
7,3
Clay
27,5%
Sand
18,4%
Silt
54,1%
15–30 cm
pH H₂O
7,3
Clay
27,7%
Sand
19,3%
Silt
52,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.3%
Crops6.7%
Built-up14.8%
Bare soil0.1%
Other (grassland, water…)69.1%
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
44 526km²
Discharge in basins
1,9m³/s
Mean precip.
646mm/an
Mean T°
10,9°C
Moisture idx
-0,21
Max snow
2%
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
42hab/km²
Night light
41,9nW
Built-up
1 480,7%
Pesticides
10,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
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.