Ruisseau· 18 segments

Olandsån

Crosses 2 administrative regions : Uppsala, Östhammar

ruisseau

Total length

78km

Max discharge

8m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080031590875 km²

2 administrative regions crossed (GADM L2)

Östhammar
Uppsala · Sweden
59.2 km
in this dpt
Uppsala
Uppsala · Sweden
47.0 km
in this dpt

30 intersecting protected areas

2005530 Tjäderleksmossen
IUCN Ia
Nature Reserve
SK 523-2018
IUCN IV
Nature conservation agreement
Tjäderleksmossen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Tjäderleksmossen
IUCN Ia
Natura 2000 SCI
2057841 Rörmar
IUCN Ia
Nature Reserve
2002992 Lyssnarberget
IUCN Ia
Nature Reserve
Faringe
IUCN Not Assigned
Natura 2000 SCI
Faringe
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
SK 303-2015
IUCN IV
Nature conservation agreement, Swedish Forest Agency

21 more protected areassorted by area

SK 89-2011
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 214-2017
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 388-2003
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 145-2006
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 801-2005
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 617-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 357-2017
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 282-2006
IUCN Ia
Habitat Protection Area
SK 377-2008
IUCN Ia
Habitat Protection Area
SK 317-2009
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 726-2002
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 93-2011
IUCN Ia
Habitat Protection Area
SK 590-2004
IUCN Ia
Habitat Protection Area
SK 833-2001
IUCN Ia
Habitat Protection Area
SK 482-2007
IUCN Ia
Habitat Protection Area
SK 553-2014
IUCN Ia
Habitat Protection Area
SK 213-2017
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 28-2013
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 394-2017
IUCN Ia
Habitat Protection Area
SK 500-2007
IUCN Ia
Habitat Protection Area
SK 148-2009
IUCN Ia
Habitat Protection Area

1 page = 1 named river (aggregation of 18 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 159 distinct species · 10 780 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Olandsån : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.117

Patrimoniales

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)