HydroBASINS lev08 watershed · #2080217950
Bassin de Stora Tandån
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 2 administrative regions across 2 countries : Malung, Trysil
Sub-basin area
569,2km²
Upstream area
569,4km²
Discharge
7,8m³/s
Mean elev.
539m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 364.3 km²63.6% of basin
- 208.2 km²36.4% of basin
9 intersecting protected areas
Nature Reserve
22.66 km² overlap
Stor-Närfjället
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.61 km² overlap
Stor-Närfjället
IUCN IbNatura 2000 SCI
17.61 km² overlap
Hundfjället
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.41 km² overlap
Hundfjället
IUCN IaNatura 2000 SCI
0.41 km² overlap
2002487 Hundfjället
IUCN IaNature Reserve
0.41 km² overlap
Granåsen
IUCN IaNature Reserve
0.15 km² overlap
67D7i9694
IUCN Not ApplicableVoluntary set-aside areas
0.15 km² overlap
SK 667-2008
IUCN IVNature conservation agreement, Swedish Forest Agency
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 688 distinct species · 30 819 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Stora Tandån : 17 espèces reliées par 57 interactions GloBI sur 4 types (connectance 14.0%, 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).
Hydroclimate (BasinATLAS lev08)
Mean T°
1,9°C
Annual rain
663mm
Moisture idx (CMI)
0,24
Runoff
433mm/an
PET
499mm
AET
425mm
Mean slope
4,6°
Water table
256cm
Forest
60%
Crops
0%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)