Ruisseau· 7 segments

Lillån

Crosses 4 administrative regions : Alingsås, Borås, Herrljunga, Vårgårda

ruisseau

Total length

763km

Max discharge

10,3m³/s

Max Strahler

Segments matched

River geography4 admin regions · 0 communes

Parent watershed

hybas-20800332901642 km²

4 administrative regions crossed (GADM L2)

Vårgårda
Västra Götaland · Sweden
23.7 km
in this dpt
Alingsås
Västra Götaland · Sweden
10.2 km
in this dpt
Herrljunga
Västra Götaland · Sweden
0.3 km
in this dpt
Borås
Västra Götaland · Sweden
0.0 km
in this dpt

23 intersecting protected areas

2012996 Färgensjöarnas naturreservat
IUCN Ia
Nature Reserve
2021667 Hjortmarka
IUCN IV
Nature Reserve
2000560 Risön
IUCN Ia
Nature Reserve
Nolhagaviken
IUCN IV
Natura 2000 SCI
Nolhagaviken
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2000553 Nolhagaviken
IUCN IV
Nature Reserve
Tånga hed
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Tånga hed
IUCN IV
Natura 2000 SCI
2001135 Tånga hed
IUCN IV
Nature Reserve

14 more protected areassorted by area

2021653 Nolhaga berg
IUCN Ia
Nature Reserve
Yxnås
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Yxnås
IUCN IV
Natura 2000 SCI
2000533 Yxnås
IUCN IV
Nature Reserve
SK 312-2008
IUCN Ia
Habitat Protection Area
SK 160-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 161-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 584-2002
IUCN Ia
Habitat Protection Area
SK 37-2009
IUCN Ia
Habitat Protection Area
SK 615-2007
IUCN Ia
Habitat Protection Area
SK 848-2003
IUCN Ia
Habitat Protection Area
SK 39-2009
IUCN Ia
Habitat Protection Area
SK 162-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 38-2009
IUCN Ia
Habitat Protection Area

1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 193 distinct species · 6 278 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Lillån : 22 espèces reliées par 74 interactions GloBI sur 5 types (connectance 14.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.149

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)