Ontologia

HydroBASINS lev08 watershed · #2080211130

Bassin de Österhocklan

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 3 administrative regions : Härjedalen, Ljusdal, Ovanåker

64% lakePfafstetter: 24450826

Sub-basin area

439,4km²

Upstream area

439,4km²

Discharge

3,66m³/s

Mean elev.

371m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Voxnan1019 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

29 intersecting protected areas

20 more protected areas

  • A513495

    IUCN Not Applicable

    Voluntary set-aside areas

    0.17 km² overlap

  • A395392

    IUCN Not Applicable

    Voluntary set-aside areas

    0.16 km² overlap

  • A049025

    IUCN Not Applicable

    Voluntary set-aside areas

    0.15 km² overlap

  • A592723

    IUCN Not Applicable

    Voluntary set-aside areas

    0.15 km² overlap

  • A392996

    IUCN Not Applicable

    Voluntary set-aside areas

    0.13 km² overlap

  • Fräkentjärn

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.13 km² overlap

  • Fräkentjärn

    IUCN Not Assigned

    Natura 2000 SCI

    0.13 km² overlap

  • A019680

    IUCN Not Applicable

    Voluntary set-aside areas

    0.12 km² overlap

  • A081279

    IUCN Not Applicable

    Voluntary set-aside areas

    0.12 km² overlap

  • A512171

    IUCN Not Applicable

    Voluntary set-aside areas

    0.11 km² overlap

  • A480531

    IUCN Not Applicable

    Voluntary set-aside areas

    0.11 km² overlap

  • A044856

    IUCN Not Applicable

    Voluntary set-aside areas

    0.10 km² overlap

  • A044731

    IUCN Not Applicable

    Voluntary set-aside areas

    0.10 km² overlap

  • A348991

    IUCN Not Applicable

    Voluntary set-aside areas

    0.10 km² overlap

  • A019930

    IUCN Not Applicable

    Voluntary set-aside areas

    0.10 km² overlap

  • SK 829-2003

    IUCN Ia

    Habitat Protection Area

    0.04 km² overlap

  • SK 396-2008

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.03 km² overlap

  • A019573

    IUCN Not Applicable

    Voluntary set-aside areas

    0.02 km² overlap

  • Kolarsjöbäcken

    IUCN Ia

    Natura 2000 SCI

    0.00 km² overlap

  • Kolarsjöbäcken

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

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

Species present

3 107 distinct species · 47 373 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

47 373 obs · 17 cellules
Obs. / cellule
≥ 8 453
8 036–8 452
3 159–8 035
1 853–3 158
< 1 853

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

Ecological tissue

Sample of 36 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 Österhocklan : 28 espèces reliées par 39 interactions GloBI sur 6 types (connectance 5.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
39
Connectance
0.059
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°

2,8°C

Annual rain

641mm

Moisture idx (CMI)

0,17

Runoff

263mm/an

PET

533mm

AET

431mm

Mean slope

4,2°

Water table

278cm

Forest

93%

Crops

0%

Urban

0%

Protected

1%

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