Ruisseau· 8 segments
Олха
Crosses 3 administrative regions : Irkutskiy rayon, Shelekhov, Shelekhovskiy rayon
Total length
52km
Max discharge
6,3m³/s
Max Strahler
3
Segments matched
8
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- Irkutskiy rayonIrkutsk · Russia41.8 kmin this dpt
- ShelekhovIrkutsk · Russia3.0 kmin this dpt
- Shelekhovskiy rayonIrkutsk · Russia0.1 kmin this dpt
1 intersecting protected areas
Populyaciya kalipso lukovichnoj
IUCN IIINatural Monument
1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
209 distinct species · 329 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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).
Indicateurs du tissu écologique
Tissu écologique de Олха : 23 espèces reliées par 41 interactions GloBI sur 5 types (connectance 10.1%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
52km
Max discharge
6,3m³/s
Max Strahler
3
Segments matched
8
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.