Ontologia

Municipality · NOR

Gjerstad

Norway

DfbCold, no dry season, warm summer(98 %)

Species observed

3 387

Observations

30 232

Area

327,7km²

Ecological tissue

Sample of 37 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 Gjerstad : 27 espèces reliées par 85 interactions GloBI sur 6 types (connectance 12.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
85
Connectance
0.128
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

3 387 distinct species · 30 232 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

30 232 obs · 12 cellules
Obs. / cellule
≥ 4 296
4 241–4 295
2 714–4 240
2 253–2 713
< 2 253

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

Climate

Mean T°

6,6°C

Annual rain

1 291mm

Warmest m°

20,0°C

Coldest m°

-4,9°C

Elevation: 234 m on average (min 51 m, max 584 m)

Bioclimatic detailsExpert
Annual mean temp.
6,6°C
Annual rain
1 291mm
Warmest month
20,0°C
Coldest month
-4,9°C
Mean alt.
234m
Min
51m
Max
584m
Std. dev.
101m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(98 %)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

148,4g/kg

Clay

7,8%

Sand

61,0%

Silt

31,2%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
184,4g/kg
Clay
7,0%
Sand
61,9%
Silt
31,1%
5–15 cm
pH H₂O
4,9
Org. C
160,8g/kg
Clay
6,7%
Sand
61,9%
Silt
31,4%
15–30 cm
pH H₂O
5,0
Org. C
100,1g/kg
Clay
9,7%
Sand
59,3%
Silt
31,0%

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

Land cover

Forest71.3%
Crops1.1%
Built-up0.0%
Bare soil0.5%
Other (grassland, water…)27.0%

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

Hydrology5 basins · 30 lakes · 25 rivers

Hydrology metrics for this exact territory

Stream length here

89,8km

Lake surface here

10,68km²

Basins crossed

5

Max stream order

3

Max drainage

2 631km²

Discharge in basins

8,2m³/s

Mean precip.

914mm/an

Mean T°

5,7°C

Moisture idx

0,46

Max snow

46%

Mean runoff

816mm/an

Mean elev. (basins)

226m

Rivers / streams (25, ord ≥ 4)

13 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

2,6%

Pesticides

1,5kg/km²

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

Protected areas17

IUCN Ia · 12IUCN Not Reported · 5
Complete list

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