Ontologia

HydroBASINS lev08 watershed · #2080230430

Bassin de Dalälven

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 : Hedemora, Säter

61% lakePfafstetter: 24460017

Sub-basin area

350,4km²

Upstream area

25 884,7km²

Discharge

327,31m³/s

Mean elev.

142m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dalälven1088 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Hovranområdet

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    46.66 km² overlap

  • Kloster

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.28 km² overlap

  • Kloster

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    2.28 km² overlap

  • Kloster

    IUCN IV

    Natura 2000 SPA

    2.28 km² overlap

  • Kloster

    IUCN IV

    Natura 2000 SCI

    2.28 km² overlap

  • 2002080 Kloster

    IUCN IV

    Nature Reserve

    2.27 km² overlap

  • Lilla Älvgången

    IUCN IV

    Natura 2000 SCI

    0.63 km² overlap

  • Lilla Älvgången

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.63 km² overlap

  • 2002710 Lilla Älvgången

    IUCN IV

    Nature Conservation Area

    0.63 km² overlap

21 more protected areas

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

Species present

3 551 distinct species · 349 807 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

349 807 obs · 11 cellules
Obs. / cellule
≥ 73 909
54 940–73 908
40 829–54 939
32 753–40 828
< 32 753

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

Ecological tissue

Sample of 21 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 Dalälven : 11 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 3 types (connectance 19.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
50
Connectance
0.198
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°

4,7°C

Annual rain

640mm

Moisture idx (CMI)

0,08

Runoff

335mm/an

PET

590mm

AET

449mm

Mean slope

4,1°

Water table

310cm

Forest

71%

Crops

1%

Urban

0%

Protected

1%

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