Ruisseau
Kolarmoraån
Crosses 3 administrative regions : Norrtälje, Uppsala, Östhammar
Total length
6km
Max discharge
1,8m³/s
Max Strahler
3
Segments matched
1
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
30 intersecting protected areas
2002608 Svanhusskogen
IUCN IaNature Reserve
Olas skifte
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Olas skifte
IUCN IaNatura 2000 SCI
2000844 Aspdalssjön
IUCN IVNature Reserve
Aspdalssjön
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Aspdalssjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Aspdalssjön
IUCN IVNatura 2000 SPA
Aspdalssjön
IUCN IVNatura 2000 SCI
2000147 Björinge
IUCN IVNature Reserve
21 more protected areassorted by area
2000009 Borgskogen
IUCN IaNature Reserve
2000882 Vickelsjön
IUCN IaNature Reserve
Vickelsjön
IUCN IaNatura 2000 SCI
Vickelsjön
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Borgskogen
IUCN IaNatura 2000 SCI
Borgskogen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Björinge
IUCN IVNatura 2000 SCI
Björinge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Kolarmoraåskogen
IUCN Not AssignedNatura 2000 SCI
Kolarmoraåskogen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2041333 Bokullen
IUCN IaNature Reserve
SK 330-2010
IUCN IaHabitat Protection Area
SK 327-2007
IUCN IaHabitat Protection Area
SK 219-2015
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 40-2011
IUCN IaHabitat Protection Area
SK 396-2015
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 716-2006
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 492-2005
IUCN IaHabitat Protection Area
SK 136-2014
IUCN IaHabitat Protection Area
SK 739-2006
IUCN IaHabitat Protection Area
SK 150-2010
IUCN IaHabitat Protection Area
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
1 226 distinct species · 5 240 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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).
Indicateurs du tissu écologique
Tissu écologique de Kolarmoraån : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 8 types (connectance 9.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
6km
Max discharge
1,8m³/s
Max Strahler
3
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.