Ontologia

Ruisseau

Araku oja

Crosses 3 administrative regions : Halliste, Kõpu, Pärsti

ruisseau

Total length

7km

Max discharge

3,4m³/s

Max Strahler

3

Segments matched

1

River geography3 admin regions · 0 communes

Parent watershed

hybas-20802558102719 km²

3 administrative regions crossed (GADM L2)

  • Halliste
    Viljandi · Estonia
    8.4 km
    in this dpt
  • Kõpu
    Viljandi · Estonia
    6.7 km
    in this dpt
  • Pärsti
    Viljandi · Estonia
    0.0 km
    in this dpt

28 intersecting protected areas

19 more protected areas

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

Species present

218 distinct species · 590 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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 Araku oja : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 5 types (connectance 12.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
89
Connectance
0.127
Patrimoniales
1
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

7km

Max discharge

3,4m³/s

Max Strahler

3

Segments matched

1

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