Ontologia

Municipality · NOR

Holmestrand

Norway

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

Species observed

2 584

Observations

39 331

Area

91km²

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 Holmestrand : 25 espèces reliées par 99 interactions GloBI sur 5 types (connectance 15.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
99
Connectance
0.157
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

2 584 distinct species · 39 331 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

39 331 obs · 3 cellules
Obs. / cellule
≥ 19 796
19 796–19 795
19 796–19 795
10 316–19 795
< 10 316

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 096mm

Warmest m°

20,6°C

Coldest m°

-6,9°C

Elevation: 123 m on average (min -47 m, max 270 m)

Bioclimatic detailsExpert
Annual mean temp.
6,4°C
Annual rain
1 096mm
Warmest month
20,6°C
Coldest month
-6,9°C
Mean alt.
123m
Min
-47m
Max
270m
Std. dev.
47m
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

113,7g/kg

Clay

12,7%

Sand

50,5%

Silt

36,7%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
152,8g/kg
Clay
12,2%
Sand
51,6%
Silt
36,2%
5–15 cm
pH H₂O
5,0
Org. C
118,7g/kg
Clay
12,1%
Sand
49,5%
Silt
38,4%
15–30 cm
pH H₂O
5,2
Org. C
69,5g/kg
Clay
13,9%
Sand
50,5%
Silt
35,5%

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

Land cover

Forest53.7%
Crops13.1%
Built-up0.4%
Bare soil0.7%
Other (grassland, water…)32.1%

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

Hydrology4 basins · 4 lakes · 0 rivers

Hydrology metrics for this exact territory

Lake surface here

2,50km²

Basins crossed

4

Max drainage

17 189km²

Discharge in basins

15,3m³/s

Mean precip.

745mm/an

Mean T°

5,7°C

Moisture idx

0,31

Max snow

46%

Mean runoff

658mm/an

Mean elev. (basins)

173m

Watersheds crossing here

Lakes (4, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

5,0nW

Built-up

38,4%

Pesticides

12,8kg/km²

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

Protected areas13

IUCN Ia · 9IUCN Not Reported · 4

Bogen

IUCN Not Reported

Emerald Network

1 km²

Bogen

IUCN Ia

Nature Reserve · 2006

1 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN