Ruisseau

Piiroja

Crosses 4 administrative regions : Ahja, Kõlleste, Põlva, Vastse-Kuuste

ruisseau

Total length

31km

Max discharge

2,4m³/s

Max Strahler

Segments matched

River geography4 admin regions · 0 communes

Parent watershed

hybas-20802566601055 km²

4 administrative regions crossed (GADM L2)

Vastse-Kuuste
Põlva · Estonia
5.8 km
in this dpt
Põlva
Põlva · Estonia
0.1 km
in this dpt
Ahja
Põlva · Estonia
0.0 km
in this dpt
Kõlleste
Põlva · Estonia
0.0 km
in this dpt

14 intersecting protected areas

Ahja
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Ahja jõe ürgoru maastikukaitseala
IUCN Not Assigned
Protected landscape (nature park)
Ahja jõe ürgoru MKA, Ahja jõe pv.
IUCN V
Limited management zone of protected landscape
Akste looduskaitseala
IUCN Not Assigned
Nature reserve
Akste LKA, Akste skv.
IUCN IV
Managed conservation zone of nature reserve
Ahja jõgi
IUCN Not Assigned
Spawning area
Ahja jõe ürgoru MKA, Valgemetsa pv.
IUCN V
Limited management zone of protected landscape
Leevi jõgi
IUCN Not Assigned
Spawning area
Ahja jõe hoiuala
IUCN VI
Limited-conservation area

5 more protected areassorted by area

Piigaste oja
IUCN Not Assigned
Spawning area
VEP nr.204707
IUCN Not Assigned
Woodland key habitat
VEP nr.139073
IUCN Not Assigned
Woodland key habitat
VEP nr.205800
IUCN Not Assigned
Woodland key habitat
VEP nr.139034
IUCN Not Assigned
Woodland key habitat

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

Species present

1 311 distinct species · 4 904 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 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 Piiroja : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.100

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)