Ontologia

Municipality · NOR

Gjerdrum

Norway

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

Species observed

1 600

Observations

12 390

Area

91,6km²

Ecological tissue

Sample of 28 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 Gjerdrum : 19 espèces reliées par 77 interactions GloBI sur 6 types (connectance 19.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
77
Connectance
0.190
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

1 600 distinct species · 12 390 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 390 obs · 3 cellules
Obs. / cellule
≥ 4 872
4 872–4 871
4 872–4 871
3 783–4 871
< 3 783

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 038mm

Warmest m°

20,3°C

Coldest m°

-8,4°C

Elevation: 221 m on average (min 124 m, max 377 m)

Bioclimatic detailsExpert
Annual mean temp.
5,4°C
Annual rain
1 038mm
Warmest month
20,3°C
Coldest month
-8,4°C
Mean alt.
221m
Min
124m
Max
377m
Std. dev.
70m
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

5,0

Org. C

119,3g/kg

Clay

11,2%

Sand

54,2%

Silt

34,5%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
168,2g/kg
Clay
10,5%
Sand
56,0%
Silt
33,5%
5–15 cm
pH H₂O
5,0
Org. C
121,8g/kg
Clay
10,3%
Sand
54,1%
Silt
35,6%
15–30 cm
pH H₂O
5,1
Org. C
67,8g/kg
Clay
12,8%
Sand
52,7%
Silt
34,5%

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

Land cover

Forest58.4%
Crops15.2%
Built-up0.3%
Bare soil0.6%
Other (grassland, water…)25.6%

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

Hydrology1 basins · 4 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

35,0km

Lake surface here

0,69km²

Basins crossed

1

Max stream order

3

Max drainage

1 202km²

Discharge in basins

1,6m³/s

Mean precip.

795mm/an

Mean T°

3,9°C

Moisture idx

0,33

Max snow

49%

Mean runoff

564mm/an

Mean elev. (basins)

330m

Watersheds crossing here

Lakes (4, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

2,3nW

Built-up

27,0%

Pesticides

13,3kg/km²

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

Protected areas6

IUCN Ia · 5IUCN III · 1

Torshov

IUCN Ia

Nature Reserve · 2022

0 km²

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