Ontologia

Commune · CAN

Saint-Alfred

Canada

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

Species observed

156

Observations

1 309

Area

43,6km²

Ecological tissue

Sample of 29 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-Alfred : 21 espèces + 8 bulles famille, 45 interactions GloBI documentées sur 3 types (connectance 11.1%, filtre Serrano α=0.2). Les 8 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
29
Interactions affichées
45
Connectance
0.111
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

156 distinct species · 1 309 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 309 obs · 1 cellules
Obs. / cellule
≥ 1 309
1 309–1 308
1 309–1 308
1 309–1 308
< 1 309

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

Climate

Mean T°

4,5°C

Annual rain

1 321mm

Warmest m°

23,1°C

Coldest m°

-16,4°C

Elevation: 313 m on average (min 271 m, max 353 m)

Bioclimatic detailsExpert
Annual mean temp.
4,5°C
Annual rain
1 321mm
Warmest month
23,1°C
Coldest month
-16,4°C
Mean alt.
313m
Min
271m
Max
353m
Std. dev.
21m
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

5,1

Org. C

85,2g/kg

Clay

16,7%

Sand

39,8%

Silt

43,5%

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

Dominant lithology: pbGLiMaggregated to Robert-Cliche

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
157,5g/kg
Clay
16,1%
Sand
39,5%
Silt
44,5%
5–15 cm
pH H₂O
5,0
Org. C
66,0g/kg
Clay
16,8%
Sand
39,4%
Silt
43,9%
15–30 cm
pH H₂O
5,2
Org. C
32,1g/kg
Clay
17,3%
Sand
40,5%
Silt
42,2%

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

Land cover

Forest65.9%
Crops9.2%
Built-up0.1%
Bare soil0.6%
Other (grassland, water…)24.1%

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

Hydrology2 basins · 3 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

16,0km

Lake surface here

0,62km²

Basins crossed

2

Max stream order

2

Max drainage

4 133km²

Discharge in basins

9,3m³/s

Mean precip.

983mm/an

Mean T°

3,9°C

Moisture idx

0,23

Max snow

40%

Mean runoff

715mm/an

Mean elev. (basins)

304m

Watersheds crossing here

Lakes (3, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

15,2%

Pesticides

6,6kg/km²

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