Ontologia

HydroBASINS lev08 watershed · #2080187240

Bassin de Halån

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 : Ragunda, Sollefteå

8% lakePfafstetter: 24450218

Sub-basin area

314,1km²

Upstream area

314,1km²

Discharge

3,62m³/s

Mean elev.

353m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Singsån448 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

17 intersecting protected areas

8 more protected areas

  • Traneflobäcken

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.26 km² overlap

  • 2028031 Orrmyrberget

    IUCN Ia

    Nature Reserve

    0.14 km² overlap

  • SK 251-2015

    IUCN Ia

    Habitat Protection Area

    0.10 km² overlap

  • SK 434-2015

    IUCN Ia

    Habitat Protection Area

    0.04 km² overlap

  • SK 150-2001

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • SK 3-2001

    IUCN Ia

    Habitat Protection Area

    0.02 km² overlap

  • SK 495-2008

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

    0.00 km² overlap

  • SK 14-2002

    IUCN Ia

    Habitat Protection Area

    0.00 km² overlap

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

Species present

1 460 distinct species · 18 466 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

18 466 obs · 12 cellules
Obs. / cellule
≥ 4 178
3 973–4 177
1 387–3 972
1 082–1 386
< 1 082

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

Ecological tissue

Sample of 32 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 Halån : 24 espèces reliées par 67 interactions GloBI sur 5 types (connectance 12.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
67
Connectance
0.127
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°

1,6°C

Annual rain

607mm

Moisture idx (CMI)

0,18

Runoff

363mm/an

PET

495mm

AET

399mm

Mean slope

4,8°

Water table

262cm

Forest

94%

Crops

0%

Urban

0%

Protected

2%

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