Ontologia

Commune · CAN

Saint-David

Canada

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

Species observed

396

Observations

10 316

Area

94,6km²

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-David : 25 espèces reliées par 114 interactions GloBI sur 4 types (connectance 18.1%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
114
Connectance
0.181
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

396 distinct species · 10 316 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 316 obs · 7 cellules
Obs. / cellule
≥ 2 890
2 890–2 889
2 059–2 889
1 307–2 058
< 1 307

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

Climate

Mean T°

6,4°C

Annual rain

1 068mm

Warmest m°

25,3°C

Coldest m°

-14,9°C

Elevation: 32 m on average (min 17 m, max 45 m)

Bioclimatic detailsExpert
Annual mean temp.
6,4°C
Annual rain
1 068mm
Warmest month
25,3°C
Coldest month
-14,9°C
Mean alt.
32m
Min
17m
Max
45m
Std. dev.
5m
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

65,3g/kg

Clay

32,7%

Sand

31,5%

Silt

35,9%

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

Dominant lithology: scGLiMaggregated to Le Bas-Richelieu

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
79,3g/kg
Clay
29,4%
Sand
32,5%
Silt
38,0%
5–15 cm
pH H₂O
5,9
Org. C
52,3g/kg
Clay
30,0%
Sand
32,9%
Silt
37,2%
15–30 cm
pH H₂O
6,0
Org. C
64,3g/kg
Clay
38,6%
Sand
29,0%
Silt
32,4%

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

Land cover

Forest14.9%
Crops52.6%
Built-up0.3%
Bare soil1.8%
Other (grassland, water…)30.4%

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

Hydrology4 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

32,1km

Basins crossed

4

Max stream order

5

Max drainage

10 103km²

Discharge in basins

10,4m³/s

Mean precip.

1 001mm/an

Mean T°

5,5°C

Moisture idx

0,18

Max snow

33%

Mean runoff

652mm/an

Mean elev. (basins)

52m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,7nW

Built-up

26,9%

Pesticides

29,9kg/km²

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