Ontologia

HydroBASINS lev08 watershed · #2080167810

Bassin de Arvån

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 : Lycksele, Vindeln

72% lakePfafstetter: 24438034

Sub-basin area

339,8km²

Upstream area

340km²

Discharge

4,44m³/s

Mean elev.

251m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Stormyrbäcken179 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

26 intersecting protected areas

17 more protected areas

  • Bocksberget

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.76 km² overlap

  • Bocksberget

    IUCN Ia

    Natura 2000 SCI

    0.76 km² overlap

  • Tjäderberget

    IUCN Not Applicable

    Voluntary set-aside areas

    0.74 km² overlap

  • A442893

    IUCN Not Applicable

    Voluntary set-aside areas

    0.28 km² overlap

  • A411271

    IUCN Not Applicable

    Voluntary set-aside areas

    0.27 km² overlap

  • A322419

    IUCN Not Applicable

    Voluntary set-aside areas

    0.13 km² overlap

  • A061235

    IUCN Not Applicable

    Voluntary set-aside areas

    0.12 km² overlap

  • A084580

    IUCN Not Applicable

    Voluntary set-aside areas

    0.12 km² overlap

  • Rålidknösen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.11 km² overlap

  • Rålidknösen

    IUCN Ia

    Natura 2000 SCI

    0.11 km² overlap

  • 2001621 Rålidknösen

    IUCN Ia

    Nature Reserve

    0.11 km² overlap

  • A078877

    IUCN Not Applicable

    Voluntary set-aside areas

    0.11 km² overlap

  • A105499

    IUCN Not Applicable

    Voluntary set-aside areas

    0.11 km² overlap

  • SK 493-2013

    IUCN Ia

    Habitat Protection Area

    0.08 km² overlap

  • SK 627-2003

    IUCN Ia

    Habitat Protection Area

    0.05 km² overlap

  • 2044048 Ekorrsele

    IUCN Ia

    Nature Reserve

    0.01 km² overlap

  • SK 19-2016

    IUCN Ia

    Habitat Protection Area

    0.01 km² overlap

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

Species present

2 075 distinct species · 22 974 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 974 obs · 14 cellules
Obs. / cellule
≥ 5 759
4 779–5 758
2 106–4 778
630–2 105
< 630

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

Ecological tissue

Sample of 37 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 Arvån : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 5 types (connectance 8.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
65
Connectance
0.088
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°

0,8°C

Annual rain

574mm

Moisture idx (CMI)

0,14

Runoff

411mm/an

PET

493mm

AET

384mm

Mean slope

4,6°

Water table

204cm

Forest

94%

Crops

0%

Urban

0%

Protected

0%

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