Ontologia

HydroBASINS lev08 watershed · #2080213990

Bassin de Viksjöforsströmmen

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 : Bollnäs, Ovanåker

98% lakePfafstetter: 24450824

Sub-basin area

445,7km²

Upstream area

445,8km²

Discharge

3,84m³/s

Mean elev.

294m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Voxnan181 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

28 intersecting protected areas

  • Stormyran-Grannäsen

    IUCN Not Assigned

    Natura 2000 SCI

    11.72 km² overlap

  • Stormyran-Grannäsen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    11.72 km² overlap

  • Stormyran-Grannäsen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    11.72 km² overlap

  • Stormyran-Grannäsen

    IUCN Not Assigned

    Natura 2000 SPA

    11.72 km² overlap

  • SK 369-2004

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.53 km² overlap

  • SK 299-2007

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.41 km² overlap

  • SK 368-2004

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.10 km² overlap

  • SK 319-2005

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.09 km² overlap

  • SK 927-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.06 km² overlap

19 more protected areas

  • SK 536-2012

    IUCN Ia

    Habitat Protection Area

    0.06 km² overlap

  • SK 150-2013

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.05 km² overlap

  • SK 289-2017

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.04 km² overlap

  • SK 666-2008

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.03 km² overlap

  • SK 208-2005

    IUCN Ia

    Habitat Protection Area

    0.03 km² overlap

  • SK 160-2013

    IUCN Ia

    Habitat Protection Area

    0.03 km² overlap

  • SK 156-2018

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.03 km² overlap

  • SK 926-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.03 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.03 km² overlap

  • SK 211-2017

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.02 km² overlap

  • n/a.

    IUCN IV

    Nature conservation agreement, County Administrative Board

    0.02 km² overlap

  • SK 295-2007

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • Lillån

    IUCN Not Assigned

    Natura 2000 SCI

    0.02 km² overlap

  • Lillån

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

  • SK 279-2013

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • SK 806-2003

    IUCN Ia

    Habitat Protection Area

    0.01 km² overlap

  • SK 294-2016

    IUCN Ia

    Habitat Protection Area

    0.01 km² overlap

  • Tulpans

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.01 km² overlap

  • Tulpans

    IUCN Not Assigned

    Natura 2000 SCI

    0.01 km² overlap

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

Species present

1 750 distinct species · 38 078 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

38 078 obs · 17 cellules
Obs. / cellule
≥ 5 936
4 432–5 935
3 455–4 431
1 359–3 454
< 1 359

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

Ecological tissue

Sample of 22 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 Viksjöforsströmmen : 18 espèces reliées par 23 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
23
Connectance
0.100
Patrimoniales
0
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

651mm

Moisture idx (CMI)

0,14

Runoff

272mm/an

PET

558mm

AET

440mm

Mean slope

4,6°

Water table

309cm

Forest

91%

Crops

0%

Urban

0%

Protected

0%

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