Ontologia

HydroBASINS lev08 watershed · #2080226820

Bassin de Västerdalälven

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 : Malung, Vansbro

29% lakePfafstetter: 24460045

Sub-basin area

1 487km²

Upstream area

4 716,9km²

Discharge

80,65m³/s

Mean elev.

372m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Hulån637 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Tandövala

    IUCN Ib

    Natura 2000 SCI

    16.63 km² overlap

  • Tandövala

    IUCN Ib

    Natura 2000 SPA

    16.63 km² overlap

  • 2002500 Tandövala

    IUCN Ib

    Nature Reserve

    16.63 km² overlap

  • Tandövala

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    16.63 km² overlap

  • Tandövala

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    16.63 km² overlap

  • Haftahedarna

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    13.44 km² overlap

  • Haftahedarna

    IUCN Not Assigned

    Natura 2000 SCI

    13.44 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    5.29 km² overlap

  • Görälven-Västerdalälven

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.54 km² overlap

21 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

4 073 distinct species · 168 997 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

168 997 obs · 57 cellules
Obs. / cellule
≥ 35 471
5 652–35 470
3 065–5 651
2 001–3 064
< 2 001

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 31 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 Bassin de Västerdalälven : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 5 types (connectance 17.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
96
Connectance
0.171
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

3,3°C

Annual rain

703mm

Moisture idx (CMI)

0,23

Runoff

394mm/an

PET

539mm

AET

449mm

Mean slope

4,4°

Water table

266cm

Forest

92%

Crops

0%

Urban

0%

Protected

1%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)