Viråns vattensystem
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
22 km²
Municipality · SWE
Hultsfred
Sweden
DfbCold, no dry season, warm summer(100 %)
Species observed
8 124
Observations
440 357
Area
1 193,3km²
Ecological tissue
Sample of 32 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 Hultsfred : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 5 types (connectance 17.1%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
85
Connectance
0.171
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
8 124 distinct species · 440 357 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
6,7°C
Annual rain
633mm
Warmest m°
21,5°C
Coldest m°
-4,6°C
Elevation: 137 m on average (min 80 m, max 232 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
6,7°C
Annual rain
633mm
Warmest month
21,5°C
Coldest month
-4,6°C
Mean alt.
137m
Min
80m
Max
232m
Std. dev.
32m
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
4,8
Org. C
89,1g/kg
Clay
14,6%
Sand
54,4%
Silt
31,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,6
Org. C
117,9g/kg
Clay
13,9%
Sand
54,9%
Silt
31,2%
5–15 cm
pH H₂O
4,6
Org. C
117,1g/kg
Clay
13,2%
Sand
53,3%
Silt
33,5%
15–30 cm
pH H₂O
5,1
Org. C
32,4g/kg
Clay
16,7%
Sand
54,9%
Silt
28,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest67.7%
Crops4.6%
Built-up0.1%
Bare soil0.8%
Other (grassland, water…)26.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology10 basins · 50 lakes · 18 rivers
Hydrology metrics for this exact territory
Stream length here
244,5km
Lake surface here
42,46km²
Basins crossed
10
Max stream order
5
Max drainage
4 166km²
Discharge in basins
43,0m³/s
Mean precip.
576mm/an
Mean T°
6,5°C
Moisture idx
-0,04
Max snow
39%
Mean runoff
228mm/an
Mean elev. (basins)
155m
Watersheds crossing here
- Bassin de Emånsub-area761,7 km²overlap299.07 km²25%
- Bassin de Virånsub-area615,3 km²overlap247.86 km²21%
- Bassin de Silverånsub-area711,2 km²overlap247.05 km²21%
- Bassin de Emånsub-area713,4 km²overlap188.41 km²16%
- Bassin de Emånsub-area672 km²overlap176.55 km²15%
- Bassin de Bohorvbäckensub-area264,4 km²overlap27.44 km²2%
- Bassin de Döderhultsbäckensub-area265,9 km²overlap2.86 km²0%
- Bassin de Tunaånsub-area741 km²overlap1.78 km²0%
- Bassin de Silverånsub-area1,5 km²overlap1.49 km²0%
1 more basinssorted by overlap
Lakes (50, top by area)
- Hulingenarea6,8 km²avg depth5.5 m
- Illernarea3,9 km²avg depth6.7 m
- Lindenarea3,3 km²avg depth10.9 m
- Hjortenarea2,5 km²avg depth8.2 m
- Nerbjärkenarea1,9 km²avg depth6.5 m
- Gnöttlernarea1,7 km²avg depth6.5 m
- Flatenarea1,5 km²avg depth5.3 m
- Verarea1,4 km²avg depth7.0 m
- Morenarea1,4 km²avg depth5.1 m
41 more lakes
- Stora Hammarsjöarea1,4 km²avg depth4.5 m
- Narrvetenarea1,2 km²avg depth6.2 m
- Virserumssjönarea1,2 km²avg depth4.7 m
- Axebosjöarea1,1 km²avg depth4.6 m
- Marenarea1 km²avg depth4.2 m
- Vensjönarea1 km²avg depth6.0 m
- Lac 1303668area1 km²avg depth4.3 m
- Lac 1304560area0,9 km²avg depth5.3 m
- Lac 1304324area0,9 km²avg depth4.8 m
- Lac 1304932area0,9 km²avg depth4.4 m
- Lac 1304530area0,8 km²avg depth5.9 m
- Lac 1304574area0,8 km²avg depth4.9 m
- Lac 1304186area0,8 km²avg depth5.1 m
- Lac 1303692area0,7 km²avg depth5.1 m
- Lac 1303803area0,7 km²avg depth3.9 m
- Lac 1303841area0,7 km²avg depth4.7 m
- Lac 1304762area0,6 km²avg depth4.3 m
- Lac 1304816area0,6 km²avg depth3.7 m
- Lac 1304863area0,6 km²avg depth3.1 m
- Lac 1303737area0,6 km²avg depth4.1 m
- Lac 1304155area0,6 km²avg depth3.5 m
- Lac 1304107area0,6 km²avg depth5.4 m
- Lac 1304503area0,5 km²avg depth4.0 m
- Lac 1303867area0,5 km²avg depth4.3 m
- Lac 1304229area0,5 km²avg depth5.1 m
- Lac 1303881area0,4 km²avg depth4.5 m
- Lac 1304544area0,4 km²avg depth4.0 m
- Lac 1304423area0,4 km²avg depth4.7 m
- Lac 1303433area0,4 km²avg depth4.3 m
- Lac 1303992area0,4 km²avg depth3.8 m
- Lac 1304642area0,4 km²avg depth4.6 m
- Lac 1304453area0,4 km²avg depth4.0 m
- Lac 1303953area0,4 km²avg depth4.3 m
- Lac 1304028area0,4 km²avg depth4.2 m
- Lac 1303786area0,4 km²avg depth3.6 m
- Lac 1304198area0,3 km²avg depth4.1 m
- Lac 1303493area0,3 km²avg depth4.5 m
- Lac 1304465area0,3 km²avg depth4.6 m
- Lac 1304070area0,3 km²avg depth3.7 m
- Lac 1304086area0,3 km²avg depth3.9 m
- Lac 1303557area0,3 km²avg depth4.6 m
Rivers / streams (18, ord ≥ 4)
- Emånord 5len here83.21 km30%total273 km
- Silverånord 4len here50.82 km57%total89 km
- Morånord 1len here15.99 km75%total21 km
- Nötånord 2len here11.91 km21%total56 km
- Ålhusbäckenord 1len here10.87 km100%total11 km
- Åbäckenord 2len here9.85 km63%total16 km
- Skärveteånord 3len here9.13 km49%total19 km
- Verånord 3len here8.83 km100%total9 km
- Sollebäckord 1len here7.93 km61%total13 km
- Pauliströmsånord 2len here7.49 km68%total11 km
- Lillånord 2len here6.34 km27%total23 km
- Virserumsånord 3len here5.16 km100%total5 km
6 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,4nW
Built-up
9,8%
Pesticides
2,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas86
IUCN Ia · 36IUCN IV · 14IUCN Not Reported · 13IUCN Not Assigned · 13IUCN Not Applicable · 8IUCN III · 2🌊 Marine · 2📍 Point sites · 11
Viråns vattensystem
IUCN Not AssignedNatura 2000 SCI · 2002
22 km²
Emåns vattensystem i Kalmar län
IUCN Not AssignedNatura 2000 SCI · 1998
20 km²
Emåns vattensystem i Kalmar län
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
20 km²
Hulingen
IUCN Not AssignedNatura 2000 SPA · 1998
3 km²
2011414 Hulingen
IUCN Not AssignedWildlife and Plant Sanctuary · 1983
3 km²
Complete list86 protected areas
- Viråns vattensystemSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201122 km²
- Viråns vattensystemNatura 2000 SCIIUCN Not Assigned200222 km²
- Emåns vattensystem i Kalmar länNatura 2000 SCIIUCN Not Assigned199820 km²
- Emåns vattensystem i Kalmar länSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201120 km²
- HulingenNatura 2000 SPAIUCN Not Assigned19983 km²
- 2011414 HulingenWildlife and Plant SanctuaryIUCN Not Assigned19833 km²
- HulingenSpecial Protection Area (Birds Directive)IUCN Not Reported19983 km²
- RyngenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20113 km²
- RyngenSpecial Protection Area (Birds Directive)IUCN Not Reported20033 km²
- RyngenNatura 2000 SCIIUCN Not Assigned20023 km²
- RyngenNatura 2000 SPAIUCN Not Assigned20033 km²
- Emån (västra)Natura 2000 SCIIUCN Not Assigned19982 km²
- Emån (västra)Special Areas of Conservation (Habitats Directive)IUCN Not Reported20112 km²
- 2002266 Sällevadsåns dalgångNature ReserveIUCN III19992 km²
- Sällevadsån (östra)Natura 2000 SCIIUCN III19982 km²
- Sällevadsån (östra)Special Areas of Conservation (Habitats Directive)IUCN Not Reported20112 km²
- 2044880 Pauliströmsåns nedre dalgångNature ReserveIUCN Not Assigned20222 km²
- GrönuddeNatura 2000 SCIIUCN Ia19971 km²
- 2002262 Grön uddeNature ReserveIUCN Ia19991 km²
- GrönuddeSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20111 km²
- 2014699 KnästorpNature ReserveIUCN IV20131 km²
- 2002264 BjörnnäsetNature ReserveIUCN Ia19971 km²
- BjörnnäsetSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20111 km²
- BjörnnäsetSpecial Protection Area (Birds Directive)IUCN Not Reported19981 km²
- BjörnnäsetNatura 2000 SCIIUCN Ia19981 km²
- BjörnnäsetNatura 2000 SPAIUCN Ia19981 km²
- Högeruda-SkinnskällaNatura 2000 SCIIUCN Not Assigned20010 km²
- Högeruda-SkinnskällaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20110 km²
- KraskögleNatura 2000 SCIIUCN Not Assigned20030 km²
- KraskögleSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20110 km²
- 2002435 KraskögleNature ReserveIUCN Not Assigned20030 km²
- 2002279 SlagdalaNature ReserveIUCN IV19740 km²
- StensrydSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20110 km²
- StensrydNatura 2000 SCIIUCN Ia19980 km²
- 2002265 StensrydNature ReserveIUCN Ia19980 km²
- A029547Voluntary set-aside areasIUCN Not Applicable20120 km²
- 2054241 KvillsforsskogenNature ReserveIUCN Ia20240 km²
- SK 46-2019Habitat Protection AreaIUCN Ia20190 km²
- A323178Voluntary set-aside areasIUCN Not Applicable20240 km²
- A266434Voluntary set-aside areasIUCN Not Applicable20240 km²
- 2004580 HulingsrydNature ReserveIUCN Ia20060 km²
- SK 665-2002Nature conservation agreement, Swedish Forest AgencyIUCN IV20020 km²
- SK 77-2008Nature conservation agreement, Swedish Forest AgencyIUCN IV20080 km²
- A068267Voluntary set-aside areasIUCN Not Applicable20120 km²
- 2061061 LixerumskogenNature ReserveIUCN IV20230 km²
- SK 54-2021Habitat Protection AreaIUCN Ia20210 km²
- SK 261-2007Nature conservation agreement, Swedish Forest AgencyIUCN IV20070 km²
- SK 335-2003Nature conservation agreement, Swedish Forest AgencyIUCN IV20030 km²
- A350357Voluntary set-aside areasIUCN Not Applicable20240 km²
- SK 718-2017Habitat Protection AreaIUCN Ia20240 km²
- SK 336-2017Habitat Protection AreaIUCN Ia20180 km²
- A029815Voluntary set-aside areasIUCN Not Applicable20120 km²
- SK 169-2017Habitat Protection AreaIUCN Ia20180 km²
- A183947Voluntary set-aside areasIUCN Not Applicable20230 km²
- SK 554-2017Habitat Protection AreaIUCN Ia20230 km²
- SK 142-2008Habitat Protection AreaIUCN Ia20080 km²
- A182523Voluntary set-aside areasIUCN Not Applicable20240 km²
- SK 87-2017Habitat Protection AreaIUCN Ia20170 km²
- 2004535 AlkärretNature ReserveIUCN Not Assigned20060 km²
- SK 789-2002Nature conservation agreement, Swedish Forest AgencyIUCN IV20020 km²
+ 26 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN