Ontologia

Ruisseau· 8 segments

Häggån

Crosses 2 administrative regions : Borås, Mark

ruisseau

Total length

59km

Max discharge

5,3m³/s

Max Strahler

3

Segments matched

8

River geography2 admin regions · 0 communes

Parent watershed

hybas-20800331902177 km²

2 administrative regions crossed (GADM L2)

  • Mark
    Västra Götaland · Sweden
    15.3 km
    in this dpt
  • Borås
    Västra Götaland · Sweden
    10.7 km
    in this dpt

9 intersecting protected areas

  • A393613

    IUCN Not Applicable

    Voluntary set-aside areas

  • Tattarströmmarna

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Tattarströmmarna

    IUCN Not Assigned

    Natura 2000 SCI

  • SK 390-2007

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 99-2007

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 158-2010

    IUCN Ia

    Habitat Protection Area

  • 2025487 Lomö

    IUCN Not Assigned

    Wildlife and Plant Sanctuary

  • SK 159-2010

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

  • SK 54-2004

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 004 distinct species · 4 158 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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 Häggån : 22 espèces reliées par 82 interactions GloBI sur 5 types (connectance 14.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
82
Connectance
0.146
Patrimoniales
0
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

59km

Max discharge

5,3m³/s

Max Strahler

3

Segments matched

8

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