Ontologia

Municipality · NOR

Drammen

Norway

DfbCold, no dry season, warm summer(88 %)

Species observed

9 664

Observations

469 630

Area

145,8km²

Ecological tissue

Sample of 31 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 Drammen : 26 espèces + 5 bulles famille, 68 interactions GloBI documentées sur 4 types (connectance 14.6%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
31
Interactions affichées
68
Connectance
0.146
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

9 664 distinct species · 469 630 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

469 630 obs · 14 cellules
Obs. / cellule
≥ 225 021
51 837–225 020
24 020–51 836
16 410–24 019
< 16 410

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

Climate

Mean T°

5,4°C

Annual rain

1 074mm

Warmest m°

20,1°C

Coldest m°

-8,8°C

Elevation: 227 m on average (min -56 m, max 519 m)

Bioclimatic detailsExpert
Annual mean temp.
5,4°C
Annual rain
1 074mm
Warmest month
20,1°C
Coldest month
-8,8°C
Mean alt.
227m
Min
-56m
Max
519m
Std. dev.
137m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(88 %)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

129,3g/kg

Clay

11,0%

Sand

54,0%

Silt

34,9%

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
178,1g/kg
Clay
10,6%
Sand
54,9%
Silt
34,5%
5–15 cm
pH H₂O
5,1
Org. C
133,6g/kg
Clay
10,5%
Sand
53,4%
Silt
36,0%
15–30 cm
pH H₂O
5,2
Org. C
76,2g/kg
Clay
11,8%
Sand
53,8%
Silt
34,3%

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

Land cover

Forest60.3%
Crops4.5%
Built-up1.3%
Bare soil0.2%
Other (grassland, water…)33.8%

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

Hydrology5 basins · 4 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

29,1km

Lake surface here

0,56km²

Basins crossed

5

Max stream order

6

Max drainage

17 189km²

Discharge in basins

19,6m³/s

Mean precip.

757mm/an

Mean T°

5,1°C

Moisture idx

0,30

Max snow

49%

Mean runoff

676mm/an

Mean elev. (basins)

243m

Watersheds crossing here

Lakes (4, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

12,0nW

Built-up

126,0%

Pesticides

8,4kg/km²

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

Protected areas6

IUCN Ia · 4IUCN Not Reported · 2

Rismyr

IUCN Ia

Nature Reserve · 1986

0 km²

Austad

IUCN Not Reported

Natural Monument · 1964

0 km²

Skalstad

IUCN Not Reported

Natural Monument · 1967

0 km²

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