Ontologia

Ruisseau

Långån

Crosses 2 administrative regions : Tierp, Östhammar

ruisseau

Total length

19km

Max discharge

0,8m³/s

Max Strahler

2

Segments matched

1

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080031520964 km²

2 administrative regions crossed (GADM L2)

  • Tierp
    Uppsala · Sweden
    11.8 km
    in this dpt
  • Östhammar
    Uppsala · Sweden
    0.3 km
    in this dpt

6 intersecting protected areas

  • 2002537 Florarna

    IUCN Ia

    Nature Reserve

  • Florarna

    IUCN Not Reported

    Special Protection Area (Birds Directive)

  • Florarna

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Florarna

    IUCN Ia

    Natura 2000 SCI

  • Florarna

    IUCN Ia

    Natura 2000 SPA

  • SK 30-2011

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

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

Species present

1 124 distinct species · 6 816 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 30 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 Långån : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 5 types (connectance 10.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
56
Connectance
0.106
Patrimoniales
1
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

19km

Max discharge

0,8m³/s

Max Strahler

2

Segments matched

1

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