Ontologia

Commune · CAN

Saint-Gervais

Canada

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

Species observed

672

Observations

31 133

Area

94,4km²

Ecological tissue

Sample of 30 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-Gervais : 22 espèces + 8 bulles famille, 46 interactions GloBI documentées sur 3 types (connectance 10.6%, filtre Serrano α=0.2). Les 8 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
30
Interactions affichées
46
Connectance
0.106
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

672 distinct species · 31 133 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 133 obs · 7 cellules
Obs. / cellule
≥ 10 025
10 025–10 024
5 952–10 024
4 125–5 951
< 4 125

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

Climate

Mean T°

4,9°C

Annual rain

1 348mm

Warmest m°

23,8°C

Coldest m°

-16,1°C

Elevation: 151 m on average (min 87 m, max 290 m)

Bioclimatic detailsExpert
Annual mean temp.
4,9°C
Annual rain
1 348mm
Warmest month
23,8°C
Coldest month
-16,1°C
Mean alt.
151m
Min
87m
Max
290m
Std. dev.
48m
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

5,5

Org. C

54,7g/kg

Clay

28,8%

Sand

34,6%

Silt

36,7%

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

Dominant lithology: smGLiMaggregated to Bellechasse

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
84,2g/kg
Clay
27,8%
Sand
34,3%
Silt
37,9%
5–15 cm
pH H₂O
5,5
Org. C
52,4g/kg
Clay
28,8%
Sand
34,0%
Silt
37,3%
15–30 cm
pH H₂O
5,6
Org. C
27,5g/kg
Clay
29,7%
Sand
35,4%
Silt
34,8%

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

Land cover

Forest27.1%
Crops29.9%
Built-up0.5%
Bare soil1.9%
Other (grassland, water…)40.6%

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

Hydrology2 basins · 1 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

44,3km

Lake surface here

0,11km²

Basins crossed

2

Max stream order

3

Max drainage

1 995km²

Discharge in basins

2,2m³/s

Mean precip.

1 054mm/an

Mean T°

3,4°C

Moisture idx

0,32

Max snow

45%

Mean runoff

736mm/an

Mean elev. (basins)

315m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

1,2nW

Built-up

44,6%

Pesticides

31,1kg/km²

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