Ruisseau· 2 segments

Portilaån

Crosses 2 administrative regions : Grums, Karlstad

ruisseau

Total length

3km

Max discharge

10,5m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-20802438601108 km²

2 administrative regions crossed (GADM L2)

Grums
Värmland · Sweden
17.1 km
in this dpt
Karlstad
Värmland · Sweden
0.5 km
in this dpt

13 intersecting protected areas

SK 520-2018
IUCN IV
Nature conservation agreement
SK 370-2007
IUCN Ia
Habitat Protection Area
SK 371-2007
IUCN Ia
Habitat Protection Area
SK 499-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 326-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 438-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 440-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 545-2008
IUCN Ia
Habitat Protection Area
SK 439-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency

4 more protected areassorted by area

2003868 Häll
IUCN Not Assigned
Natural Monument
SK 437-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 500-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency
SK 501-2008
IUCN IV
Nature conservation agreement, Swedish Forest Agency

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 000 distinct species · 10 726 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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 Portilaån : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.101

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)