Ontologia

Ruisseau· 3 segments

Svarvarån

Crosses 2 administrative regions : Tierp, Östhammar

ruisseau

Total length

3km

Max discharge

2,6m³/s

Max Strahler

2

Segments matched

3

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080031520964 km²

2 administrative regions crossed (GADM L2)

  • Östhammar
    Uppsala · Sweden
    18.3 km
    in this dpt
  • Tierp
    Uppsala · Sweden
    2.7 km
    in this dpt

10 intersecting protected areas

  • Forsmark

    IUCN IV

    Nature conservation agreement

  • Bruksdammen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Bruksdammen

    IUCN Not Assigned

    Natura 2000 SCI

  • Forsmark

    IUCN IV

    Nature conservation agreement

  • SK 666-2012

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • 2002535 Bruksbystan

    IUCN Not Assigned

    Nature Reserve

  • SK 137-2003

    IUCN Ia

    Habitat Protection Area

  • SK 138-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 139-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

1 more protected areas

  • SK 333-2011

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 235 distinct species · 8 718 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 40 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 Svarvarån : 32 espèces reliées par 67 interactions GloBI sur 7 types (connectance 8.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
67
Connectance
0.086
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

3km

Max discharge

2,6m³/s

Max Strahler

2

Segments matched

3

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