Ontologia

Ruisseau· 3 segments

Tansån

Crosses 2 administrative regions : Gagnef, Rättvik

ruisseau

Total length

14km

Max discharge

0,4m³/s

Max Strahler

1

Segments matched

3

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080226310587 km²

2 administrative regions crossed (GADM L2)

  • Gagnef
    Dalarna · Sweden
    12.7 km
    in this dpt
  • Rättvik
    Dalarna · Sweden
    4.7 km
    in this dpt

14 intersecting protected areas

5 more protected areas

1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 944 distinct species · 52 739 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

Indicateurs du tissu écologique

Tissu écologique de Tansån : 23 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 3 types (connectance 14.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
63
Connectance
0.145
Patrimoniales
3
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

14km

Max discharge

0,4m³/s

Max Strahler

1

Segments matched

3

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