HydroBASINS lev08 watershed · #2080032180
Bassin de Virån
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 3 administrative regions : Hultsfred, Oskarshamn, Vimmerby
Sub-basin area
615,3km²
Upstream area
615,4km²
Discharge
3,79m³/s
Mean elev.
95m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- OskarshamnKalmar · Sweden311.8 km²50.4% of basin
- 247.9 km²40.1% of basin
- 58.1 km²9.4% of basin
30 intersecting protected areas
Viråns vattensystem
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.37 km² overlap
Viråns vattensystem
IUCN Not AssignedNatura 2000 SCI
22.37 km² overlap
2054561 Stensjö by
IUCN Not AssignedOthers
5.69 km² overlap
Virbo med Ekö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.88 km² overlap
Virbo med Ekö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.88 km² overlap
Virbo med Ekö
IUCN VNatura 2000 SCI
1.88 km² overlap
Nature Reserve
1.88 km² overlap
Virbo med Ekö
IUCN VNatura 2000 SPA
1.88 km² overlap
2022270 Blomsfors
IUCN IVNature Reserve
1.63 km² overlap
21 more protected areassorted by overlap area
2002273 Humlenäs
IUCN IVNature Reserve
1.49 km² overlap
2013382 Ishult
IUCN IaNature Reserve
1.02 km² overlap
Grönudde
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.02 km² overlap
Grönudde
IUCN IaNatura 2000 SCI
1.02 km² overlap
2002262 Grön udde
IUCN IaNature Reserve
1.02 km² overlap
Humlenäs
IUCN IVNatura 2000 SCI
0.76 km² overlap
Humlenäs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.76 km² overlap
2021625 Köksmåla
IUCN IVNature Reserve
0.48 km² overlap
2022669 Stamsjövägen
IUCN IVNature Reserve
0.45 km² overlap
Krokshult
IUCN Not AssignedNatura 2000 SCI
0.41 km² overlap
Krokshult
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.41 km² overlap
Ösjökärr
IUCN Not AssignedNatura 2000 SCI
0.34 km² overlap
Ösjökärr
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.34 km² overlap
2002269 Krokshult
IUCN IVNature Reserve
0.22 km² overlap
Malghult
IUCN IVNatura 2000 SCI
0.22 km² overlap
Malghult
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.22 km² overlap
2002268 Malghult
IUCN IVNature Reserve
0.22 km² overlap
Skrikebo
IUCN IaNatura 2000 SCI
0.20 km² overlap
2002276 Skrikebo
IUCN IaNature Reserve
0.20 km² overlap
Skrikebo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.20 km² overlap
2026689 Lämmedal
IUCN IaNature Reserve
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 821 distinct species · 162 330 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Virån : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 16.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
6,9°C
Annual rain
545mm
Moisture idx (CMI)
-0,08
Runoff
219mm/an
PET
592mm
AET
429mm
Mean slope
1,8°
Water table
169cm
Forest
95%
Crops
5%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)