Þjórsárver
IUCN Not ReportedEmerald Network
1 560 km²
Region · isl
Norðurland vestra
Iceland
ETPolar, tundra(74 %)
Species observed
2 375
Observations
70 487
Area
12 425,2km²
Ecological tissue
Sample of 25 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 Norðurland vestra : 14 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 3 types (connectance 18.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
25
Interactions affichées
54
Connectance
0.180
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 375 distinct species · 70 487 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
1,0°C
Annual rain
965mm
Warmest m°
10,9°C
Coldest m°
-8,3°C
Elevation: 504 m on average (min -46 m, max 1 740 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
1,0°C
Annual rain
965mm
Warmest month
10,9°C
Coldest month
-8,3°C
Mean alt.
504m
Min
-46m
Max
1 740m
Std. dev.
308m
Köppen-Geiger (dominant)
ETPolar, tundra(74 %)Polar
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Hydrology28 basins · 50 lakes · 100 rivers
Hydrology metrics for this exact territory
Stream length here
2 166,8km
Lake surface here
147,95km²
Basins crossed
28
Max stream order
5
Max drainage
3 276km²
Discharge in basins
385,8m³/s
Mean precip.
980mm/an
Mean T°
0,9°C
Moisture idx
0,66
Max snow
78%
Mean runoff
760mm/an
Mean elev. (basins)
497m
Watersheds crossing here
- Bassin de Blandasub-area2 609,1 km²overlap2531.62 km²20%
- Bassin de Húseyjarkvíslsub-area1 650,7 km²overlap1633.44 km²13%
- Bassin de Álftaskálarásub-area1 125,8 km²overlap1133.21 km²9%
- Bassin de Austurásub-area980,3 km²overlap968.97 km²8%
- Bassin de Vestari-Jökulsásub-area853 km²overlap858.33 km²7%
- Bassin de Svarfaðardalsásub-area1 811,4 km²overlap742.10 km²6%
- Bassin de Víðidalsásub-area726,8 km²overlap731.58 km²6%
- Bassin de Austari-Jökulsásub-area640,7 km²overlap553.32 km²4%
- Bassin de Hjaltadalsásub-area487,1 km²overlap488.53 km²4%
19 more basinssorted by overlap
- Bassin de Heiðarásub-area407,1 km²overlap402.61 km²3%
- Bassin de Svartásub-area375,4 km²overlap377.91 km²3%
- Bassin de Þórsásub-area374,6 km²overlap356.73 km²3%
- Bassin de Austari-Jökulsásub-area343,5 km²overlap345.73 km²3%
- Bassin de Austari-Héraðsvötnsub-area235,8 km²overlap235.36 km²2%
- Bassin de Héraðsvötnsub-area201,4 km²overlap202.72 km²2%
- Bassin de Gljúfurásub-area184,3 km²overlap180.90 km²1%
- Bassin de Síkásub-area373,2 km²overlap137.95 km²1%
- Basin #57780sub-area143,2 km²overlap132.59 km²1%
- Bassin de Norðlingafljótsub-area1 131,3 km²overlap94.33 km²1%
- Bassin de Hnjúkskvíslsub-area200,8 km²overlap93.01 km²1%
- Bassin de Þjórsásub-area2 893,7 km²overlap57.32 km²0%
- Bassin de Laxá á Asumsub-area55 km²overlap53.37 km²0%
- Bassin de Hörgásub-area741,7 km²overlap22.64 km²0%
- Bassin de Héraðsvötnsub-area18,9 km²overlap19.06 km²0%
- Basin #58000sub-area20,7 km²overlap15.94 km²0%
- Bassin de Örnólfsdalsásub-area464 km²overlap12.80 km²0%
- Bassin de Eyjafjarðarásub-area1 345,8 km²overlap8.82 km²0%
- Bassin de Jökulfallsub-area394,5 km²overlap2.09 km²0%
Lakes (50, top by area)
- Blöndulónarea53,4 km²avg depth7.5 m
- Hóparea46 km²avg depth10.8 m
- Svínavatnarea11,6 km²avg depth10.2 m
- Höfðavatnarea10,2 km²avg depth9.5 m
- Vesturhópsvatnarea10,1 km²avg depth9.3 m
- Miklavatnarea6,9 km²avg depth6.3 m
- Miklavatnarea6,1 km²avg depth1.6 m
- Þrístiklaarea5,6 km²avg depth10.9 m
- Friðmundarvötnarea5 km²avg depth4.6 m
41 more lakes
- Arnarvatn-Stóraarea3,7 km²avg depth6.3 m
- Stífluvatnarea3,6 km²avg depth18.4 m
- Laxárvatnarea3,1 km²avg depth14.3 m
- Hundavötnarea3 km²avg depth7.8 m
- Langavatnarea2,9 km²avg depth10.0 m
- Flóðiðarea2,7 km²avg depth1.6 m
- Ölvesvatnarea2,6 km²avg depth6.1 m
- Urðarvötnarea2,5 km²avg depth6.3 m
- Mjóavatnarea2,4 km²avg depth8.2 m
- Austara-Friðmundarvatnarea1,9 km²avg depth6.4 m
- Aravatnarea1,9 km²avg depth4.8 m
- Flóavatnarea1,8 km²avg depth5.9 m
- Eyjavatnarea1,7 km²avg depth5.8 m
- Krókavatnarea1,5 km²avg depth6.7 m
- Urðarvötnarea1,4 km²avg depth9.4 m
- Þórisvatnarea1,4 km²avg depth5.2 m
- Gilsvatnarea1,3 km²avg depth4.5 m
- Galtabólarea1,3 km²avg depth6.0 m
- Lake #45634area1,2 km²avg depth8.3 m
- Aðalmannsvatnarea1,2 km²avg depth4.7 m
- Ölvesvatnarea1,1 km²avg depth5.4 m
- Lake #44154area1 km²avg depth1.8 m
- Bjarnarvatnarea1 km²avg depth16.3 m
- Miðfjarðarvatnarea1 km²avg depth7.0 m
- Blönduvatnarea1 km²avg depth8.2 m
- Lac 1223262area1 km²avg depth2.7 m
- Lac 1233452area0,9 km²avg depth3.9 m
- Lac 1232069area0,9 km²avg depth6.3 m
- Lac 1223271area0,9 km²avg depth6.6 m
- Lac 1232442area0,8 km²avg depth4.5 m
- Lac 1235350area0,8 km²avg depth4.3 m
- Lac 1223613area0,8 km²avg depth5.9 m
- Lac 1234043area0,8 km²avg depth6.1 m
- Lac 1232496area0,8 km²avg depth4.7 m
- Lac 1234267area0,7 km²avg depth4.1 m
- Lac 1224776area0,7 km²avg depth6.4 m
- Lac 1232407area0,7 km²avg depth5.7 m
- Lac 1223542area0,7 km²avg depth3.7 m
- Lac 1232551area0,7 km²avg depth4.7 m
- Lac 1234044area0,7 km²avg depth5.9 m
- Lac 1229369area0,6 km²avg depth5.2 m
Rivers / streams (100, ord ≥ 4)
- Blandaord 4len here164.56 km93%total177 km
- Austari-Jökulsáord 4len here101.37 km100%total101 km
- Austuráord 4len here73.36 km100%total73 km
- Svartáord 3len here73.29 km100%total73 km
- Víðidalsáord 4len here65.97 km100%total66 km
- Fossáord 4len here51.00 km100%total51 km
- Álftaskálaráord 4len here50.03 km100%total50 km
- Vestari-Jökulsáord 3len here47.51 km100%total47 km
- Strangakvíslord 4len here41.59 km100%total41 km
- Héraðsvötnord 5len here39.49 km100%total39 km
- Vesturáord 4len here39.43 km100%total39 km
- Fitjáord 2len here39.40 km100%total39 km
88 more river segmentssorted by Strahler order + length
- Svartakvíslord 2len here37.66 km100%total38 km
- Hjaltadalsáord 3len here37.45 km100%total37 km
- Vatnsdalsáord 4len here36.83 km100%total37 km
- Svartáord 3len here36.73 km100%total37 km
- Húseyjarkvíslord 3len here30.81 km96%total32 km
- Kolkaord 3len here30.23 km100%total30 km
- Pollakvíslord 3len here30.05 km100%total30 km
- Hnjúkskvíslord 2len here29.80 km79%total38 km
- Fljótaáord 3len here29.67 km98%total30 km
- Austari-Héraðsvötnord 5len here26.88 km98%total28 km
- Laxáord 3len here26.77 km100%total27 km
- Unadalsáord 2len here25.22 km100%total25 km
- Síkáord 2len here23.91 km100%total24 km
- Neðri-Þverkvíslord 2len here23.65 km100%total24 km
- Laxáord 3len here23.31 km100%total23 km
- Fossáord 1len here22.95 km100%total23 km
- Staðaráord 2len here22.64 km100%total23 km
- Öxnáord 2len here21.05 km100%total21 km
- Seyðisáord 3len here20.69 km100%total21 km
- Herjólfslækurord 2len here20.34 km100%total20 km
- Miðkvíslord 3len here20.00 km100%total20 km
- Heiðaráord 2len here19.94 km100%total20 km
- Gljúfuráord 2len here19.65 km100%total20 km
- Hofsáord 4len here18.97 km100%total19 km
- Mælifellsáord 3len here18.62 km100%total19 km
- Strangakvíslord 3len here18.14 km100%total18 km
- Húseyjarkvíslord 2len here17.78 km100%total18 km
- Ytri-Hraunlækurord 3len here16.89 km100%total17 km
- Fossáord 2len here16.41 km100%total16 km
- Hörghólsáord 2len here15.99 km100%total16 km
- Sandfellskvíslord 2len here15.79 km100%total16 km
- Hrolleifsdalsáord 2len here15.74 km100%total16 km
- Halláord 2len here15.09 km100%total15 km
- Hólkotskvíslord 3len here14.98 km100%total15 km
- Giljáord 2len here14.97 km100%total15 km
- Fitjáord 2len here14.86 km100%total15 km
- Efri-Þverkvíslord 2len here14.60 km100%total15 km
- Hvammsáord 2len here14.40 km100%total14 km
- Þveráord 2len here13.74 km100%total14 km
- Trölláord 1len here13.53 km100%total13 km
- Egilsáord 2len here13.38 km100%total13 km
- Kornsáord 1len here13.35 km100%total13 km
- Fremri-Laxáord 3len here13.11 km100%total13 km
- Gljúfuráord 1len here13.05 km100%total13 km
- Tinnáord 2len here13.04 km100%total13 km
- Sléttáord 2len here12.70 km100%total13 km
- Tungnalækurord 2len here12.68 km100%total13 km
- Giljáord 2len here12.57 km100%total13 km
- Austuráord 2len here12.52 km100%total12 km
- Hvammsáord 2len here12.50 km100%total12 km
- Tungufjallsáord 2len here12.27 km100%total12 km
- Holtsdalsáord 2len here11.90 km100%total12 km
- Norðuráord 3len here11.60 km100%total12 km
- Svertingstaðaáord 2len here11.49 km100%total11 km
- Miðkvíslord 1len here11.45 km100%total11 km
- Bólstaðarhlíðaráord 3len here11.33 km100%total11 km
- Staðaráord 2len here10.67 km97%total11 km
- Kotáord 3len here10.54 km100%total11 km
- Þórsáord 1len here10.47 km100%total10 km
- Hólagilslækurord 2len here10.18 km100%total10 km
- Hornáord 1len here10.01 km100%total10 km
- Hólaáord 2len here9.97 km100%total10 km
- Kornsáord 4len here9.95 km100%total10 km
- Skarðsáord 1len here9.85 km100%total10 km
- Midhlutaráord 3len here9.83 km100%total10 km
- Hraunþúfuáord 4len here9.80 km100%total10 km
- Lambáord 3len here9.76 km100%total10 km
- Hofsáord 3len here9.55 km94%total10 km
- Flókadalsáord 2len here9.44 km100%total9 km
- Kolkukvíslord 3len here9.37 km100%total9 km
- Svínadalsáord 2len here9.29 km100%total9 km
- Hrafnáord 1len here9.17 km98%total9 km
- Kálfáord 1len here9.10 km100%total9 km
- Nautabúsáord 2len here9.07 km100%total9 km
- Hólslækurord 3len here9.04 km100%total9 km
- Deildardalsáord 2len here8.98 km79%total11 km
- Haugalækurord 3len here8.86 km100%total9 km
- Fossáord 3len here8.58 km100%total9 km
- Tjarnaráord 1len here8.57 km93%total9 km
- Fjalagilslækurord 1len here8.57 km100%total9 km
- Seljaáord 2len here8.38 km100%total8 km
- Djúpadalsáord 3len here8.36 km100%total8 km
- Friðmundaráord 1len here8.32 km100%total8 km
- Valagilsáord 3len here8.32 km100%total8 km
- Norðuráord 2len here8.23 km100%total8 km
- Þveráord 1len here8.08 km100%total8 km
- Jökulkvíslord 2len here7.95 km39%total20 km
- Gönguskarðsáord 3len here7.83 km100%total8 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Protected areas9
IUCN Not Reported · 2IUCN III · 2IUCN V · 2IUCN Ib · 1IUCN IV · 1IUCN VI · 1🌊 Marine · 2📍 Point sites · 1
Þjórsárver
IUCN IbNature Reserve · 1987
1 560 km²
Guðlaugstungur - Álfgeirstungur
IUCN Not ReportedEmerald Network
398 km²
Guðlaugstungur
IUCN IVNature Reserve · 2005
398 km²
Miklavatn
IUCN VINature Reserve · 1977
15 km²
Hveravellir
IUCN IIINatural Monument · 1985
2 km²
Complete list9 protected areas
- ÞjórsárverEmerald NetworkIUCN Not Reported1 560 km²
- ÞjórsárverNature ReserveIUCN Ib19871 560 km²
- Guðlaugstungur - ÁlfgeirstungurEmerald NetworkIUCN Not Reported398 km²
- GuðlaugstungurNature ReserveIUCN IV2005398 km²
- MiklavatnNature ReserveIUCN VI197715 km²
- HveravellirNatural MonumentIUCN III19852 km²
- SpákonufellshöfðiPublic Recreation Area or Country ParkIUCN V19800 km²
- HrúteyPublic Recreation Area or Country ParkIUCN V19990 km²
- KattaraugaNatural MonumentIUCN III19750 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
Sub-administrations13
- AkrahreppurMunicipality
- BlönduósMunicipality
- BólstaðarhlíðarhreppurMunicipality
- EngihlíðarhreppurMunicipality
- HöfðahreppurMunicipality
- Húnaþing vestraMunicipality
- SkagahreppurMunicipality
- SveinsstaðahreppurMunicipality
- Sveitarfélagið SkagafjörðurMunicipality
- SvínavatnshreppurMunicipality
- TorfalækjarhreppurMunicipality
- VindhælishreppurMunicipality
- ÁshreppurMunicipality