Dättern
IUCN IVWetland of International Importance (Ramsar Site) · 1989
40 km²
Municipality · SWE
Vänersborg
Sweden
DfbCold, no dry season, warm summer(100 %)
Species observed
8 443
Observations
1 376 052
Area
905,1km²
Ecological tissue
Sample of 23 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 Vänersborg : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 3 types (connectance 23.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
23
Interactions affichées
60
Connectance
0.237
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
8 443 distinct species · 1 376 052 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
7,1°C
Annual rain
851mm
Warmest m°
20,4°C
Coldest m°
-4,0°C
Elevation: 65 m on average (min 40 m, max 207 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
7,1°C
Annual rain
851mm
Warmest month
20,4°C
Coldest month
-4,0°C
Mean alt.
65m
Min
40m
Max
207m
Std. dev.
22m
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
4,9
Org. C
76,3g/kg
Clay
21,2%
Sand
40,3%
Silt
38,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,8
Org. C
109,1g/kg
Clay
20,7%
Sand
40,4%
Silt
38,8%
5–15 cm
pH H₂O
4,9
Org. C
85,0g/kg
Clay
21,4%
Sand
39,7%
Silt
38,9%
15–30 cm
pH H₂O
5,0
Org. C
34,7g/kg
Clay
21,3%
Sand
40,9%
Silt
37,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest33.2%
Crops16.8%
Built-up0.2%
Bare soil0.8%
Other (grassland, water…)48.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 29 lakes · 11 rivers
Hydrology metrics for this exact territory
Stream length here
91,2km
Lake surface here
262,95km²
Basins crossed
8
Max stream order
6
Max drainage
48 628km²
Discharge in basins
417,6m³/s
Mean precip.
756mm/an
Mean T°
6,5°C
Moisture idx
0,25
Max snow
38%
Mean runoff
409mm/an
Mean elev. (basins)
85m
Watersheds crossing here
- Bassin de Stallbackaånsub-area702,4 km²overlap413.63 km²46%
- Bassin de Hakerudsälvensub-area863,3 km²overlap363.57 km²40%
- Bassin de Spångabäckensub-area1 011,8 km²overlap94.74 km²10%
- Bassin de Storebergsånsub-area365,1 km²overlap12.68 km²1%
- Bassin de Bredängsånsub-area282,2 km²overlap11.58 km²1%
- Bassin de Örekilsälvensub-area1 351,6 km²overlap6.24 km²1%
- Basin #55080sub-area16,7 km²overlap2.63 km²0%
- Basin #55130sub-area0,9 km²overlap0.02 km²0%
Lakes (29, top by area)
- Vanernarea5 486,2 km²avg depth27.9 m
- Öresjöarea10,4 km²avg depth9.0 m
- Stora Hästefjordenarea8,4 km²avg depth5.2 m
- Östra Hästefjordenarea2,5 km²avg depth2.7 m
- Hullsjönarea1,8 km²avg depth2.6 m
- Rådanesjönarea1,4 km²avg depth8.0 m
- Lac 1298487area0,9 km²avg depth6.1 m
- Lac 1299722area0,8 km²avg depth5.8 m
- Lac 1298447area0,7 km²avg depth4.7 m
20 more lakes
- Lac 1299607area0,5 km²avg depth4.7 m
- Lac 1299854area0,4 km²avg depth3.2 m
- Lac 1299282area0,3 km²avg depth3.6 m
- Lac 1299336area0,3 km²avg depth2.9 m
- Lac 1299317area0,3 km²avg depth2.6 m
- Lac 1299573area0,3 km²avg depth2.8 m
- Lac 1299762area0,2 km²avg depth3.4 m
- Lac 1299275area0,2 km²avg depth2.7 m
- Lac 1299882area0,2 km²avg depth2.6 m
- Lac 1299136area0,2 km²avg depth2.5 m
- Lac 1299379area0,2 km²avg depth3.3 m
- Lac 1299866area0,2 km²avg depth3.9 m
- Lac 1298402area0,2 km²avg depth3.0 m
- Lac 1299252area0,1 km²avg depth3.1 m
- Lac 1299758area0,1 km²avg depth3.3 m
- Lac 1299666area0,1 km²avg depth2.8 m
- Lac 1299803area0,1 km²avg depth1.8 m
- Lac 1299883area0,1 km²avg depth2.0 m
- Lac 1298338area0,1 km²avg depth4.1 m
- Lac 1298382area0,1 km²avg depth3.4 m
Rivers / streams (11, ord ≥ 4)
- Hakerudsälvenord 3len here38.01 km93%total41 km
- Bodaneälvenord 1len here10.93 km39%total28 km
- Krokånord 2len here9.36 km55%total17 km
- Frändeforsånord 3len here8.50 km100%total8 km
- Lillånord 3len here6.53 km9%total74 km
- Göta älvord 6len here5.87 km20%total29 km
- Stallbackaånord 2len here5.69 km38%total15 km
- Sågånord 2len here2.80 km34%total8 km
- Risånord 2len here2.11 km17%total12 km
- Fällälvenord 1len here1.25 km20%total6 km
- Bredängsånord 2len here0.18 km1%total24 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,0nW
Built-up
21,3%
Pesticides
3,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas89
IUCN IV · 34IUCN Ia · 23IUCN Not Assigned · 14IUCN Not Reported · 13IUCN III · 4IUCN V · 1📍 Point sites · 6
Dättern
IUCN Not AssignedNatura 2000 SCI · 1998
37 km²
Dättern
IUCN Not AssignedNatura 2000 SPA · 1998
37 km²
Dättern
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2011
37 km²
Dättern
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 1998
37 km²
2000357 Halle- Hunnebergs platåer
IUCN VNature Reserve · 1982
37 km²
Complete list89 protected areas
- DätternWetland of International Importance (Ramsar Site)IUCN IV198940 km²
- DätternNatura 2000 SCIIUCN Not Assigned199837 km²
- DätternNatura 2000 SPAIUCN Not Assigned199837 km²
- DätternSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201137 km²
- DätternSpecial Protection Area (Birds Directive)IUCN Not Reported199837 km²
- 2000357 Halle- Hunnebergs platåerNature ReserveIUCN V198237 km²
- 2000380 Halle- och Hunnebergs platåerNature ReserveIUCN III198219 km²
- Halle- HunnebergNature conservation agreementIUCN IV200915 km²
- 2000407 Dättern INature ReserveIUCN IV200215 km²
- 2000538 Halle-Hunnebergs rasbranterNature ReserveIUCN III198212 km²
- Halle- och Hunnebergs branterNatura 2000 SCIIUCN III19959 km²
- Halle- och Hunnebergs branterNatura 2000 SPAIUCN III19969 km²
- Halle- och Hunnebergs branterSpecial Protection Area (Birds Directive)IUCN Not Reported19969 km²
- Halle- och Hunnebergs branterSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20119 km²
- Norra Vänersnäs skärgårdNatura 2000 SPAIUCN IV20128 km²
- Norra Vänersnäs skärgårdNatura 2000 SCIIUCN IV19988 km²
- 2002882 Vänersnäs skärgårdNature ReserveIUCN IV20048 km²
- Norra Vänersnäs skärgårdSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20118 km²
- Norra Vänersnäs skärgårdSpecial Protection Area (Birds Directive)IUCN Not Reported20128 km²
- Trone mosseNatura 2000 SCIIUCN Not Assigned20047 km²
- Trone mosseSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20117 km²
- Halle- HunnebergNature conservation agreementIUCN IV20096 km²
- 2002896 Dättern etapp 2Nature ReserveIUCN IV20064 km²
- ÖjemossarnaNatura 2000 SPAIUCN Ia19964 km²
- ÖjemossarnaNatura 2000 SCIIUCN Ia19954 km²
- ÖjemossarnaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20114 km²
- ÖjemossarnaSpecial Protection Area (Birds Directive)IUCN Not Reported19964 km²
- 2000551 ÖjemossarnaNature ReserveIUCN Ia19823 km²
- 2000529 HullsjönNature ReserveIUCN IV19773 km²
- HullsjönSpecial Protection Area (Birds Directive)IUCN Not Reported19963 km²
- HullsjönSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20113 km²
- HullsjönNatura 2000 SPAIUCN IV19963 km²
- HullsjönNatura 2000 SCIIUCN IV19953 km²
- Halle- HunnebergNature conservation agreementIUCN IV20092 km²
- 2002981 SjöbottenNature ReserveIUCN Ia20082 km²
- 2042330 Knäckekullarna med FalkbergetNature ReserveIUCN Ia20161 km²
- Hästefjordens strandängarNatura 2000 SCIIUCN Not Assigned19981 km²
- Hästefjordens strandängarSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20111 km²
- 2025792 Del av Halleberg (SV Lindekleven)Wildlife and Plant SanctuaryIUCN Not Assigned19831 km²
- 2000561 Tunhems ekhagarNature ReserveIUCN IV19961 km²
- 2001129 DalbobergenNature ReserveIUCN Not Assigned20021 km²
- 2027970 BuxåsenNature ReserveIUCN Ia20130 km²
- 2042050 OxeklevNature ReserveIUCN Ia20150 km²
- 2000562 Grinnsjö domänreservatNature ReserveIUCN IV19960 km²
- 2025702 KalvönWildlife and Plant SanctuaryIUCN Not Assigned19660 km²
- 2013545 SnappanNature ReserveIUCN Ia20210 km²
- 2051961 Trone mosseNature ReserveIUCN Ia20190 km²
- VänersborgsvikenSpecial Protection Area (Birds Directive)IUCN Not Reported20120 km²
- VänersborgsvikenNatura 2000 SPAIUCN Not Assigned20120 km²
- 2025732 VänersborgsvikenWildlife and Plant SanctuaryIUCN Not Assigned19880 km²
- 2000342 NygårdsängenNature ReserveIUCN IV19970 km²
- 2025779 Del av Halleberg (NO Lindekleven)Wildlife and Plant SanctuaryIUCN Not Assigned19750 km²
- SK 524-2005Nature conservation agreement, Swedish Forest AgencyIUCN IV20050 km²
- SK 249-1995Nature conservation agreement, Swedish Forest AgencyIUCN IV19950 km²
- 2025512 Norra SkärWildlife and Plant SanctuaryIUCN Not Assigned19660 km²
- SK 209-2018Habitat Protection AreaIUCN Ia20180 km²
- SK 947-2005Habitat Protection AreaIUCN Ia20050 km²
- SK 158-2006Habitat Protection AreaIUCN Ia20060 km²
- 2025482 Stenskär (Stenön)Wildlife and Plant SanctuaryIUCN Not Assigned19660 km²
- SK 336-2003Nature conservation agreement, Swedish Forest AgencyIUCN IV20030 km²
+ 29 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN