Marifjell
IUCN IaNature Reserve · 2008
9 km²
Municipality · NOR
Gran
Norway
DfcCold, no dry season, cold summer(60 %)
Species observed
5 088
Observations
133 902
Area
770,6km²
Ecological tissue
Sample of 35 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 Gran : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 6 types (connectance 18.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
35
Interactions affichées
108
Connectance
0.181
Patrimoniales
3
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
5 088 distinct species · 133 902 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
4,1°C
Annual rain
962mm
Warmest m°
18,9°C
Coldest m°
-10,8°C
Elevation: 420 m on average (min 133 m, max 722 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
4,1°C
Annual rain
962mm
Warmest month
18,9°C
Coldest month
-10,8°C
Mean alt.
420m
Min
133m
Max
722m
Std. dev.
160m
Köppen-Geiger (dominant)
DfcCold, no dry season, cold summer(60 %)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
120,9g/kg
Clay
8,8%
Sand
57,3%
Silt
33,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,8
Org. C
170,9g/kg
Clay
8,3%
Sand
58,7%
Silt
33,0%
5–15 cm
pH H₂O
4,9
Org. C
132,0g/kg
Clay
7,9%
Sand
57,2%
Silt
34,9%
15–30 cm
pH H₂O
5,1
Org. C
59,7g/kg
Clay
10,0%
Sand
56,0%
Silt
34,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest63.0%
Crops2.9%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)34.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 42 lakes · 25 rivers
Hydrology metrics for this exact territory
Stream length here
123,3km
Lake surface here
91,29km²
Basins crossed
9
Max stream order
3
Max drainage
15 436km²
Discharge in basins
74,7m³/s
Mean precip.
735mm/an
Mean T°
3,4°C
Moisture idx
0,26
Max snow
55%
Mean runoff
572mm/an
Mean elev. (basins)
370m
Watersheds crossing here
- Bassin de Gulsjøelvasub-area323,7 km²overlap253.48 km²33%
- Bassin de Viggasub-area193,3 km²overlap144.20 km²19%
- Bassin de Randselvasub-area389,8 km²overlap138.22 km²18%
- Bassin de Leirasub-area1 201,6 km²overlap113.88 km²15%
- Bassin de Gjødingelvasub-area747,3 km²overlap56.92 km²7%
- Bassin de Hunnselvasub-area380,9 km²overlap49.70 km²6%
- Bassin de Lenaelvasub-area353,3 km²overlap7.30 km²1%
- Bassin de Begnasub-area2 116,2 km²overlap6.85 km²1%
- Bassin de Etnasub-area593,4 km²overlap0.03 km²0%
Lakes (42, top by area)
- Randsfjordenarea138,9 km²avg depth60.9 m
- Einafjordenarea13,6 km²avg depth14.5 m
- Velmundenarea9,6 km²avg depth12.8 m
- Øyangenarea4 km²avg depth14.5 m
- Våjaarea3,2 km²avg depth8.4 m
- Vassbråaarea2,5 km²avg depth9.2 m
- Bjonevatnet,øarea2,3 km²avg depth9.8 m
- Vestre Bjonevatnetarea2,2 km²avg depth14.4 m
- Jarenarea1,4 km²avg depth7.1 m
33 more lakes
- Sortungenarea1,1 km²avg depth6.0 m
- Lac 1284994area0,6 km²avg depth6.7 m
- Lac 1284726area0,5 km²avg depth4.8 m
- Lac 1284281area0,5 km²avg depth5.9 m
- Lac 1284838area0,5 km²avg depth5.6 m
- Lac 1284798area0,5 km²avg depth6.6 m
- Lac 1284465area0,4 km²avg depth5.7 m
- Lac 1285487area0,3 km²avg depth6.3 m
- Lac 1284760area0,3 km²avg depth5.8 m
- Lac 1284441area0,3 km²avg depth6.2 m
- Lac 1283723area0,3 km²avg depth6.0 m
- Lac 1284778area0,3 km²avg depth4.5 m
- Lac 1284487area0,3 km²avg depth4.3 m
- Lac 1284857area0,3 km²avg depth5.0 m
- Lac 1284689area0,2 km²avg depth4.2 m
- Lac 1285386area0,2 km²avg depth4.9 m
- Lac 1283828area0,2 km²avg depth4.6 m
- Lac 1284976area0,2 km²avg depth4.9 m
- Lac 1284160area0,2 km²avg depth6.7 m
- Lac 1285070area0,2 km²avg depth3.5 m
- Lac 1284727area0,2 km²avg depth6.7 m
- Lac 1284761area0,2 km²avg depth5.3 m
- Lac 1284714area0,2 km²avg depth3.8 m
- Lac 1283962area0,2 km²avg depth3.5 m
- Lac 1285401area0,2 km²avg depth3.8 m
- Lac 1285137area0,2 km²avg depth6.3 m
- Lac 1284920area0,1 km²avg depth4.4 m
- Lac 1284992area0,1 km²avg depth4.8 m
- Lac 1284806area0,1 km²avg depth4.4 m
- Lac 1285002area0,1 km²avg depth3.6 m
- Lac 1285159area0,1 km²avg depth4.7 m
- Lac 1284799area0,1 km²avg depth4.4 m
- Lac 1285495area0,1 km²avg depth5.1 m
Rivers / streams (25, ord ≥ 4)
- Viggaord 2len here21.61 km68%total32 km
- Gulsjøelvaord 1len here12.18 km100%total12 km
- Holebekkenord 1len here7.91 km100%total8 km
- Randsjøelvaord 1len here7.45 km91%total8 km
- Sandungsbekkenord 1len here7.41 km100%total7 km
- Abborputtbekkenord 1len here5.78 km85%total7 km
- Lygnaelvaord 1len here5.69 km100%total6 km
- Halvnyttebekkenord 1len here5.43 km67%total8 km
- Skjervaord 1len here5.29 km100%total5 km
- Sortungselvaord 1len here5.17 km100%total5 km
- Avtjernbekkenord 2len here4.72 km100%total5 km
- Storåaord 2len here3.79 km91%total4 km
13 more river segmentssorted by Strahler order + length
- Vardtjernsbekkenord 1len here3.54 km74%total5 km
- Høverbekkenord 1len here3.36 km76%total4 km
- Østre Bjonelvaord 3len here3.03 km100%total3 km
- Avrillbekkenord 1len here2.76 km100%total3 km
- Langselvaord 1len here2.75 km89%total3 km
- Kverndølaord 2len here2.68 km12%total22 km
- Brandelvaord 1len here2.55 km19%total13 km
- Evjuaord 2len here2.39 km81%total3 km
- Vøyenbekkenord 2len here2.38 km100%total2 km
- Malsjøbekkenord 1len here2.07 km100%total2 km
- Dynnabekkenord 1len here1.84 km100%total2 km
- Svarttjernbekkenord 3len here1.49 km100%total1 km
- Heggaord 3len here0.01 km0%total10 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,9nW
Built-up
5,2%
Pesticides
12,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas17
IUCN Ia · 12IUCN Not Reported · 2IUCN III · 2IUCN IV · 1
Gullenhaugen
IUCN IaNature Reserve · 2002
6 km²
Avrillen
IUCN IaNature Reserve · 2019
5 km²
Rognhaugen
IUCN IaNature Reserve · 2021
2 km²
Høkleberget
IUCN IaNature Reserve · 2023
1 km²
Jarenvatnet
IUCN IaNature Reserve · 1990
1 km²
Complete list17 protected areas
- MarifjellNature ReserveIUCN Ia20089 km²
- GullenhaugenNature ReserveIUCN Ia20026 km²
- AvrillenNature ReserveIUCN Ia20195 km²
- RognhaugenNature ReserveIUCN Ia20212 km²
- HøklebergetNature ReserveIUCN Ia20231 km²
- JarenvatnetNature ReserveIUCN Ia19901 km²
- RøykenvikaWildlife Conservation AreaIUCN IV19901 km²
- SislemyreneNature ReserveIUCN Ia19811 km²
- SislemyreneEmerald NetworkIUCN Not Reported1 km²
- VesleåaNature ReserveIUCN Ia20190 km²
- PuttmyraNature ReserveIUCN Ia19850 km²
- Jøvika og TønnerudNature ReserveIUCN Ia20170 km²
- LysenNature ReserveIUCN Ia20070 km²
- HovstjernNature ReserveIUCN Ia19900 km²
- TønnerudtangenNatural MonumentIUCN III19880 km²
- KjørkjetangenNatural MonumentIUCN III19880 km²
- MaurtvedtNatural MonumentIUCN Not Reported19530 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN