Ontologia

Rivière· 21 segments

Ammerån

Crosses 2 administrative regions : Ragunda, Strömsund

rivière

Total length

67km

Max discharge

437,7m³/s

Max Strahler

6

Segments matched

21

River geography2 admin regions · 0 communes

Parent watershed

hybas-20801860502734 km²

2 administrative regions crossed (GADM L2)

  • Ragunda
    Jämtland · Sweden
    92.1 km
    in this dpt
  • Strömsund
    Jämtland · Sweden
    12.9 km
    in this dpt

20 intersecting protected areas

11 more protected areas

1 page = 1 named river (aggregation of 21 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

104 distinct species · 555 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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 Ammerån : 32 espèces reliées par 33 interactions GloBI sur 3 types (connectance 5.5%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
33
Connectance
0.056
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

67km

Max discharge

437,7m³/s

Max Strahler

6

Segments matched

21

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