Special Areas of Conservation (Habitats Directive) · swe
Viråns vattensystem
- Area
- 22 km²
- IUCN cat.
- Not Reported
- Year
- 2011
Overview
- Designation
- Special Areas of Conservation (Habitats Directive)
- Established
- 2011
- Managing authority
- See European Environment Agency Geospatial Data Catalogue for more information - https://sdi.eea.europa.eu/catalogue/srv/api/records/be2142b0-7dc4-42e3-afac-f7cc5f1a9ac6
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 342 distinct species · 34 296 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 Viråns vattensystem : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 4 types (connectance 14.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology1 basins · 22 lakes · 6 rivers
Hydrology metrics for this exact territory
Stream length here
24,4km
Lake surface here
17,61km²
Basins crossed
1
Max stream order
3
Max drainage
615km²
Discharge in basins
0,1m³/s
Mean precip.
545mm/an
Mean T°
6,9°C
Moisture idx
-0,08
Max snow
39%
Mean runoff
219mm/an
Mean elev. (basins)
95m
Watersheds crossing here
Lakes (22, top by area)
- Hummelnarea5,5 km²avg depth6.4 m
- Illernarea3,9 km²avg depth6.7 m
- Tvingenarea2,1 km²avg depth5.3 m
- Stora Lillytternarea1,7 km²avg depth4.1 m
- Verarea1,4 km²avg depth7.0 m
- Lac 1303841area0,7 km²avg depth4.7 m
- Lac 1303899area0,6 km²avg depth3.8 m
- Lac 1303896area0,6 km²avg depth4.5 m
- Lac 1304146area0,4 km²avg depth3.9 m
13 more lakes
- Lac 1304081area0,3 km²avg depth2.7 m
- Lac 1304156area0,3 km²avg depth3.4 m
- Lac 1304040area0,3 km²avg depth2.9 m
- Lac 1304086area0,3 km²avg depth3.9 m
- Lac 1304206area0,3 km²avg depth3.0 m
- Lac 1304279area0,2 km²avg depth3.6 m
- Lac 1303930area0,2 km²avg depth3.5 m
- Lac 1303990area0,2 km²avg depth2.8 m
- Lac 1303912area0,2 km²avg depth3.9 m
- Lac 1304025area0,2 km²avg depth2.8 m
- Lac 1304160area0,2 km²avg depth2.6 m
- Lac 1304057area0,1 km²avg depth2.3 m
- Lac 1303967area0,1 km²avg depth2.8 m
Rivers / streams (6, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 57.37312, 16.25081
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.