Ontologia

Commune · CAN

Saint-Mathias-sur-Richelieu

Canada

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

Species observed

281

Observations

6 815

Area

51km²

Ecological tissue

Sample of 39 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-Mathias-sur-Richelieu : 27 espèces reliées par 96 interactions GloBI sur 5 types (connectance 11.7%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
96
Connectance
0.117
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

281 distinct species · 6 815 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 815 obs · 1 cellules
Obs. / cellule
≥ 6 815
6 815–6 814
6 815–6 814
6 815–6 814
< 6 815

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

Climate

Mean T°

6,9°C

Annual rain

1 041mm

Warmest m°

25,6°C

Coldest m°

-14,1°C

Elevation: 22 m on average (min 8 m, max 40 m)

Bioclimatic detailsExpert
Annual mean temp.
6,9°C
Annual rain
1 041mm
Warmest month
25,6°C
Coldest month
-14,1°C
Mean alt.
22m
Min
8m
Max
40m
Std. dev.
9m
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

5,9

Org. C

64,4g/kg

Clay

31,1%

Sand

35,3%

Silt

33,6%

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

Dominant lithology: pbGLiMaggregated to Rouville

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
79,8g/kg
Clay
29,0%
Sand
36,2%
Silt
34,8%
5–15 cm
pH H₂O
6,0
Org. C
51,7g/kg
Clay
29,7%
Sand
36,0%
Silt
34,4%
15–30 cm
pH H₂O
6,0
Org. C
61,6g/kg
Clay
34,5%
Sand
33,9%
Silt
31,6%

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

Land cover

Forest15.0%
Crops48.8%
Built-up0.9%
Bare soil1.7%
Other (grassland, water…)33.5%

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

Hydrology4 basins · 1 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

19,4km

Lake surface here

2,14km²

Basins crossed

4

Max stream order

6

Max drainage

23 718km²

Discharge in basins

265,5m³/s

Mean precip.

974mm/an

Mean T°

6,1°C

Moisture idx

0,14

Max snow

29%

Mean runoff

620mm/an

Mean elev. (basins)

37m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

3,1nW

Built-up

92,8%

Pesticides

43,2kg/km²

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