Ontologia

County · nor

Akershus

Norway

DfbCold, no dry season, warm summer(90 %)

Species observed

19 405

Observations

2 205 535

Area

4 941,9km²

Ecological tissue

Sample of 34 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 Akershus : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 90 interactions GloBI sur 4 types (connectance 16.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
90
Connectance
0.160
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

19 405 distinct species · 2 205 535 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 205 535 obs · 179 cellules
Obs. / cellule
≥ 79 650
29 212–79 649
8 552–29 211
4 297–8 551
< 4 297

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

Climate

Mean T°

5,5°C

Annual rain

971mm

Warmest m°

20,2°C

Coldest m°

-8,2°C

Elevation: 227 m on average (min -147 m, max 723 m)

Bioclimatic detailsExpert
Annual mean temp.
5,5°C
Annual rain
971mm
Warmest month
20,2°C
Coldest month
-8,2°C
Mean alt.
227m
Min
-147m
Max
723m
Std. dev.
116m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(90 %)Cold

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

112,8g/kg

Clay

11,1%

Sand

53,9%

Silt

35,0%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,8
Org. C
157,9g/kg
Clay
10,6%
Sand
54,9%
Silt
34,5%
5–15 cm
pH H₂O
4,9
Org. C
120,1g/kg
Clay
10,3%
Sand
53,4%
Silt
36,3%
15–30 cm
pH H₂O
5,1
Org. C
60,4g/kg
Clay
12,3%
Sand
53,4%
Silt
34,2%

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

Land cover

Forest61.6%
Crops8.7%
Built-up0.4%
Bare soil0.6%
Other (grassland, water…)28.7%

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

Hydrology24 basins · 50 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

1 007,4km

Lake surface here

217,88km²

Basins crossed

24

Max stream order

7

Max drainage

39 828km²

Discharge in basins

2 155,2m³/s

Mean precip.

780mm/an

Mean T°

4,6°C

Moisture idx

0,31

Max snow

53%

Mean runoff

523mm/an

Mean elev. (basins)

241m

Watersheds crossing here

15 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

4,1nW

Built-up

36,8%

Pesticides

9,9kg/km²

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

Protected areas100

IUCN Ia · 66IUCN Not Reported · 24IUCN V · 8IUCN II · 1IUCN IV · 1🌊 Marine · 8

Nordre Oyeren

IUCN Ia

Wetland of International Importance (Ramsar Site) · 1985

64 km²

Østmarka

IUCN Not Reported

Emerald Network

18 km²

Complete list

+ 40 protected areas (top 60 shown)

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

Sub-administrations21