Ruisseau· 3 segments

Arjadi oja

Crosses 2 administrative regions : Suure-Jaani, Vändra

ruisseau

Total length

15km

Max discharge

0,5m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-20802558102719 km²

2 administrative regions crossed (GADM L2)

Suure-Jaani
Viljandi · Estonia
14.6 km
in this dpt
Vändra
Pärnu · Estonia
0.0 km
in this dpt

28 intersecting protected areas

Soomaa
IUCN Not Reported
Special Protection Area (Birds Directive)
Soomaa
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Soomaa
IUCN Ia
Wetland of International Importance (Ramsar Site)
Soomaa rahvuspark
IUCN Not Assigned
National park
Soomaa RP, Kuresoo skv.
IUCN Ib
Wilderness conservation zone of national park
Soomaa RP, Soomaa pv.
IUCN VI
Limited management zone of national park
Lehtsaare looduskaitseala
IUCN Not Assigned
Nature reserve
Lehtsaare LKA, Karjasoo skv.
IUCN IV
Managed conservation zone of nature reserve
VEP nr.211764
IUCN Not Assigned
Woodland key habitat

19 more protected areassorted by area

VEP nr.211765
IUCN Not Assigned
Woodland key habitat
VEP nr.123208
IUCN Not Assigned
Woodland key habitat
VEP nr.123205
IUCN Not Assigned
Woodland key habitat
VEP nr.212455
IUCN Not Assigned
Woodland key habitat
VEP nr.211767
IUCN Not Assigned
Woodland key habitat
VEP nr.123093
IUCN Not Assigned
Woodland key habitat
VEP nr.205586
IUCN Not Assigned
Woodland key habitat
VEP nr.209933
IUCN Not Assigned
Woodland key habitat
VEP nr.206123
IUCN Not Assigned
Woodland key habitat
VEP nr.123077
IUCN Not Assigned
Woodland key habitat
VEP nr.210102
IUCN Not Assigned
Woodland key habitat
VEP nr.123183
IUCN Not Assigned
Woodland key habitat
VEP nr.209934
IUCN Not Assigned
Woodland key habitat
VEP nr.210103
IUCN Not Assigned
Woodland key habitat
VEP nr.211766
IUCN Not Assigned
Woodland key habitat
VEP nr.205901
IUCN Not Assigned
Woodland key habitat
VEP nr.123206
IUCN Not Assigned
Woodland key habitat
VEP nr.123094
IUCN Not Assigned
Woodland key habitat
VEP nr.123096
IUCN Not Assigned
Woodland key habitat

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

Species present

305 distinct species · 552 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Arjadi oja : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 111 interactions GloBI sur 7 types (connectance 12.3%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

111

Connectance

0.123

Patrimoniales

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)