Ontologia

Commune · CAN

Holachten 8

Canada

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

Species observed

742

Observations

44 638

Area

0,9km²

Ecological tissue

Sample of 35 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 Holachten 8 : 23 espèces reliées par 69 interactions GloBI sur 3 types (connectance 11.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
69
Connectance
0.116
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

742 distinct species · 44 638 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

44 638 obs · 2 cellules
Obs. / cellule
≥ 42 257
42 257–42 256
42 257–42 256
42 257–42 256
< 42 257

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

Climate

Mean T°

10,2°C

Annual rain

2 286mm

Warmest m°

25,3°C

Coldest m°

-1,5°C

Elevation: 67 m on average (min 43 m, max 134 m)

Bioclimatic detailsExpert
Annual mean temp.
10,2°C
Annual rain
2 286mm
Warmest month
25,3°C
Coldest month
-1,5°C
Mean alt.
67m
Min
43m
Max
134m
Std. dev.
31m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

4,9

Org. C

63,6g/kg

Clay

14,7%

Sand

44,8%

Silt

40,4%

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

Dominant lithology: paGLiMaggregated to Fraser Valley

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,7
Org. C
82,8g/kg
Clay
14,0%
Sand
44,8%
Silt
41,1%
5–15 cm
pH H₂O
4,9
Org. C
64,0g/kg
Clay
15,1%
Sand
43,8%
Silt
41,2%
15–30 cm
pH H₂O
5,1
Org. C
43,9g/kg
Clay
15,1%
Sand
45,9%
Silt
39,0%

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

Land cover

Forest43.4%
Crops8.8%
Built-up1.0%
Bare soil1.6%
Other (grassland, water…)45.2%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

0,5km

Basins crossed

1

Max stream order

2

Max drainage

228 730km²

Discharge in basins

1,7m³/s

Mean precip.

1 530mm/an

Mean T°

7,2°C

Moisture idx

0,51

Max snow

32%

Mean runoff

1 639mm/an

Mean elev. (basins)

555m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

2,0nW

Built-up

99,2%

Pesticides

28,2kg/km²

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