Stråtveit
IUCN IaNature Reserve · 2018
2 km²
Municipality · NOR
Tysvær
Norway
CfbTemperate, no dry season, warm summer(89 %)
Species observed
4 196
Observations
110 916
Area
450,3km²
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 Tysvær : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 14.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
34
Interactions affichées
83
Connectance
0.148
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
4 196 distinct species · 110 916 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
7,6°C
Annual rain
2 191mm
Warmest m°
16,8°C
Coldest m°
-1,9°C
Elevation: 103 m on average (min -384 m, max 486 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
7,6°C
Annual rain
2 191mm
Warmest month
16,8°C
Coldest month
-1,9°C
Mean alt.
103m
Min
-384m
Max
486m
Std. dev.
111m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(89 %)Temperate
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
166,3g/kg
Clay
7,3%
Sand
55,9%
Silt
36,7%
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
196,0g/kg
Clay
7,2%
Sand
54,0%
Silt
38,8%
5–15 cm
pH H₂O
4,9
Org. C
181,2g/kg
Clay
6,6%
Sand
56,9%
Silt
36,6%
15–30 cm
pH H₂O
4,9
Org. C
121,7g/kg
Clay
8,2%
Sand
56,9%
Silt
34,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest51.0%
Crops7.4%
Built-up0.2%
Bare soil1.5%
Other (grassland, water…)39.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 41 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
14,5km
Lake surface here
36,65km²
Basins crossed
1
Max stream order
2
Max drainage
6 619km²
Discharge in basins
1,0m³/s
Mean precip.
2 023mm/an
Mean T°
3,6°C
Moisture idx
0,80
Max snow
47%
Mean runoff
1 900mm/an
Mean elev. (basins)
614m
Watersheds crossing here
Lakes (41, top by area)
- Lake #12871area24,3 km²avg depth28.0 m
- Aksdalsvatnetarea3,5 km²avg depth8.2 m
- Lake #57996area3,3 km²avg depth11.0 m
- Stakkastadvatnetarea2,9 km²avg depth9.6 m
- Storevatnetarea2,6 km²avg depth7.6 m
- Storavatnetarea2,4 km²avg depth7.2 m
- Lysevatnetarea1,7 km²avg depth22.2 m
- Lac 1292696area0,8 km²avg depth6.6 m
- Lac 1292715area0,8 km²avg depth10.9 m
32 more lakes
- Lac 1292528area0,6 km²avg depth5.8 m
- Lac 1293335area0,6 km²avg depth5.4 m
- Lac 1292910area0,5 km²avg depth5.4 m
- Lac 1293354area0,5 km²avg depth3.0 m
- Lac 1292789area0,4 km²avg depth6.0 m
- Lac 1292874area0,4 km²avg depth4.9 m
- Lac 1292640area0,3 km²avg depth3.8 m
- Lac 1292548area0,3 km²avg depth5.5 m
- Lac 1292915area0,3 km²avg depth4.4 m
- Lac 1292911area0,2 km²avg depth5.4 m
- Lac 1293057area0,2 km²avg depth5.2 m
- Lac 1293198area0,2 km²avg depth5.2 m
- Lac 1293439area0,2 km²avg depth4.3 m
- Lac 1293287area0,2 km²avg depth4.5 m
- Lac 1293121area0,2 km²avg depth5.5 m
- Lac 1293463area0,2 km²avg depth4.4 m
- Lac 1293436area0,2 km²avg depth4.4 m
- Lac 1292483area0,2 km²avg depth4.5 m
- Lac 1293080area0,2 km²avg depth4.4 m
- Lac 1292918area0,2 km²avg depth4.8 m
- Lac 1293227area0,2 km²avg depth3.6 m
- Lac 1292941area0,2 km²avg depth7.4 m
- Lac 1293210area0,2 km²avg depth5.5 m
- Lac 1293402area0,2 km²avg depth2.3 m
- Lac 1293350area0,1 km²avg depth3.2 m
- Lac 1293087area0,1 km²avg depth4.3 m
- Lac 1292978area0,1 km²avg depth2.5 m
- Lac 1292780area0,1 km²avg depth5.5 m
- Lac 1293160area0,1 km²avg depth4.5 m
- Lac 1292959area0,1 km²avg depth3.8 m
- Lac 1292742area0,1 km²avg depth4.6 m
- Lac 1292801area0,1 km²avg depth3.0 m
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,3nW
Built-up
20,3%
Pesticides
13,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas11
IUCN Ia · 9IUCN Not Reported · 1IUCN IV · 1🌊 Marine · 8
Hellebrekkene
IUCN IaNature Reserve · 2018
1 km²
Gåsholmen og Årvikholmen
IUCN Not ReportedEmerald Network
1 km²
Gåsholmen og Årvikholmen
IUCN IaNature Reserve · 1982
1 km²
Nordåker
IUCN IaNature Reserve · 2019
1 km²
Lindøy
IUCN IVWildlife Conservation Area · 1982
1 km²
Complete list11 protected areas
- StråtveitNature ReserveIUCN Ia20182 km²
- HellebrekkeneNature ReserveIUCN Ia20181 km²
- Gåsholmen og ÅrvikholmenEmerald NetworkIUCN Not Reported1 km²
- Gåsholmen og ÅrvikholmenNature ReserveIUCN Ia19821 km²
- NordåkerNature ReserveIUCN Ia20191 km²
- LindøyWildlife Conservation AreaIUCN IV19821 km²
- Nautøy, Longholmen og BukkholmenNature ReserveIUCN Ia19821 km²
- TveitanesetNature ReserveIUCN Ia20140 km²
- Lindøy, Tednholmen og SlåttholmenNature ReserveIUCN Ia19820 km²
- AksdalNature ReserveIUCN Ia19840 km²
- SørensholmenNature ReserveIUCN Ia19820 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN