Ontologia

Commune · CAN

Saint-Marc-sur-Richelieu

Canada

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

Species observed

203

Observations

1 245

Area

61,4km²

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 Saint-Marc-sur-Richelieu : 30 espèces + 7 bulles famille, 50 interactions GloBI documentées sur 4 types (connectance 7.5%, filtre Serrano α=0.2). Les 7 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
37
Interactions affichées
50
Connectance
0.075
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

203 distinct species · 1 245 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 245 obs · 1 cellules
Obs. / cellule
≥ 1 245
1 245–1 244
1 245–1 244
1 245–1 244
< 1 245

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

Climate

Mean T°

6,7°C

Annual rain

1 064mm

Warmest m°

25,6°C

Coldest m°

-14,6°C

Elevation: 23 m on average (min 10 m, max 44 m)

Bioclimatic detailsExpert
Annual mean temp.
6,7°C
Annual rain
1 064mm
Warmest month
25,6°C
Coldest month
-14,6°C
Mean alt.
23m
Min
10m
Max
44m
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

6,0

Org. C

65,6g/kg

Clay

33,2%

Sand

33,9%

Silt

32,9%

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

Dominant lithology: pbGLiMaggregated to La Vallée-du-Richelieu

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
77,0g/kg
Clay
30,6%
Sand
35,3%
Silt
34,2%
5–15 cm
pH H₂O
6,0
Org. C
57,8g/kg
Clay
31,5%
Sand
34,9%
Silt
33,6%
15–30 cm
pH H₂O
6,1
Org. C
62,1g/kg
Clay
37,6%
Sand
31,5%
Silt
30,9%

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

Land cover

Forest23.9%
Crops47.7%
Built-up0.5%
Bare soil1.3%
Other (grassland, water…)26.7%

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

Hydrology1 basins · 0 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

16,6km

Basins crossed

1

Max stream order

6

Max drainage

23 718km²

Discharge in basins

34,8m³/s

Mean precip.

977mm/an

Mean T°

5,8°C

Moisture idx

0,14

Max snow

29%

Mean runoff

604mm/an

Mean elev. (basins)

24m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

1,4nW

Built-up

45,4%

Pesticides

43,7kg/km²

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