Ontologia

Ruisseau

Andån

Crosses 2 administrative regions : Bollnäs, Ovanåker

ruisseau

Total length

16km

Max discharge

0,3m³/s

Max Strahler

1

Segments matched

1

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080213770666 km²

2 administrative regions crossed (GADM L2)

  • Bollnäs
    Gävleborg · Sweden
    5.7 km
    in this dpt
  • Ovanåker
    Gävleborg · Sweden
    2.3 km
    in this dpt

5 intersecting protected areas

  • A014195

    IUCN Not Applicable

    Voluntary set-aside areas

  • Nature conservation agreement, Swedish Forest Agency

  • Nature conservation agreement, Swedish Forest Agency

  • Habitat Protection Area

  • Nature conservation agreement, Swedish Forest Agency

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

Species present

378 distinct species · 962 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 51 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 Andån : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 5 types (connectance 8.0%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
52
Interactions affichées
106
Connectance
0.080
Patrimoniales
2
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

16km

Max discharge

0,3m³/s

Max Strahler

1

Segments matched

1

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