Ontologia

Ruisseau

Raka oja

Crosses 2 administrative regions : Kaiu, Käru

ruisseau

Total length

13km

Max discharge

0,9m³/s

Max Strahler

2

Segments matched

1

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080255670857 km²

2 administrative regions crossed (GADM L2)

  • Käru
    Rapla · Estonia
    13.2 km
    in this dpt
  • Kaiu
    Rapla · Estonia
    6.2 km
    in this dpt

30 intersecting protected areas

21 more protected areas

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

Species present

699 distinct species · 1 403 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 55 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 Raka oja : 41 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 100 interactions GloBI sur 6 types (connectance 6.7%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
55
Interactions affichées
100
Connectance
0.067
Patrimoniales
3
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

13km

Max discharge

0,9m³/s

Max Strahler

2

Segments matched

1

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