Ontologia

Commune · CAN

Saint-Denis

Canada

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

Species observed

386

Observations

32 567

Area

34,1km²

Ecological tissue

Sample of 35 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 Saint-Denis : 22 espèces reliées par 101 interactions GloBI sur 4 types (connectance 16.0%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
101
Connectance
0.160
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

386 distinct species · 32 567 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

32 567 obs · 1 cellules
Obs. / cellule
≥ 32 567
32 567–32 566
32 567–32 566
32 567–32 566
< 32 567

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

Climate

Mean T°

5,2°C

Annual rain

1 035mm

Warmest m°

22,3°C

Coldest m°

-12,5°C

Elevation: 12 m on average (min -25 m, max 51 m)

Bioclimatic detailsExpert
Annual mean temp.
5,2°C
Annual rain
1 035mm
Warmest month
22,3°C
Coldest month
-12,5°C
Mean alt.
12m
Min
-25m
Max
51m
Std. dev.
10m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,3

Org. C

44,7g/kg

Clay

23,6%

Sand

35,1%

Silt

41,3%

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

Dominant lithology: smGLiMaggregated to Kamouraska

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
65,0g/kg
Clay
23,4%
Sand
34,7%
Silt
41,8%
5–15 cm
pH H₂O
6,3
Org. C
37,8g/kg
Clay
23,0%
Sand
35,3%
Silt
41,7%
15–30 cm
pH H₂O
6,3
Org. C
31,4g/kg
Clay
24,3%
Sand
35,3%
Silt
40,3%

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

Land cover

Forest14.5%
Crops34.1%
Built-up0.4%
Bare soil3.6%
Other (grassland, water…)47.4%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

6,2km

Basins crossed

2

Max stream order

2

Max drainage

851km²

Discharge in basins

0,1m³/s

Mean precip.

967mm/an

Mean T°

3,4°C

Moisture idx

0,26

Max snow

47%

Mean runoff

624mm/an

Mean elev. (basins)

119m

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

36,8%

Pesticides

28,5kg/km²

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

Protected areas4

IUCN IV · 3IUCN Not Reported · 1🌊 Marine · 4

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