Ontologia

Rivière· 14 segments

Fyrisån

Crosses 3 administrative regions : Knivsta, Uppsala, Östhammar

rivière

Total length

57km

Max discharge

15,9m³/s

Max Strahler

4

Segments matched

14

River geography3 admin regions · 0 communes

Parent watershed

hybas-2080235680715 km²

3 administrative regions crossed (GADM L2)

  • Uppsala
    Uppsala · Sweden
    55.2 km
    in this dpt
  • Östhammar
    Uppsala · Sweden
    7.9 km
    in this dpt
  • Knivsta
    Uppsala · Sweden
    0.0 km
    in this dpt

26 intersecting protected areas

17 more protected areas

1 page = 1 named river (aggregation of 14 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

5 481 distinct species · 85 785 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 Fyrisån : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 5 types (connectance 16.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
71
Connectance
0.163
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

57km

Max discharge

15,9m³/s

Max Strahler

4

Segments matched

14

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