Ontologia

Ruisseau· 2 segments

Tvällälven

Crosses 2 administrative regions : Arvika, Sunne

ruisseau

Total length

4km

Max discharge

0,5m³/s

Max Strahler

1

Segments matched

2

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080236830953 km²

2 administrative regions crossed (GADM L2)

  • Sunne
    Värmland · Sweden
    16.3 km
    in this dpt
  • Arvika
    Värmland · Sweden
    0.4 km
    in this dpt

9 intersecting protected areas

  • SK 251-2021

    IUCN Ia

    Habitat Protection Area

  • SK 107-1999

    IUCN Ia

    Habitat Protection Area

  • SK 454-2009

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • Kammesmakk

    IUCN Not Assigned

    Natura 2000 SCI

  • Kammesmakk

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • SK 114-1999

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 116-1999

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 108-1999

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 110-1999

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

379 distinct species · 4 252 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 Tvällälven : 26 espèces reliées par 35 interactions GloBI sur 5 types (connectance 6.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
35
Connectance
0.062
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

4km

Max discharge

0,5m³/s

Max Strahler

1

Segments matched

2

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.