Ruisseau· 16 segments
Olšava
Crosses 4 administrative regions : Košice-okolie, Medzilaborce, Uherské Hradiště, Vranov nad Toplou
Total length
133km
Max discharge
3,2m³/s
Max Strahler
3
Segments matched
16
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- Uherské HradištěZlínský · Czechia27.8 kmin this dpt
- Košice-okolieKošický · Slovakia25.8 kmin this dpt
- Vranov nad ToplouPrešovský · Slovakia14.7 kmin this dpt
- MedzilaborcePrešovský · Slovakia6.6 kmin this dpt
21 intersecting protected areas
Laborecká vrchovina
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Bílé Karpaty
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Bílé Karpaty
IUCN VProtected Landscape Area
Slanské vrchy
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Košická kotlina
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Na Koncoch
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Nedakonický les
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Valy-Bučník
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rudický les
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12 more protected areassorted by area
Stredný tok Laborca
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Kovářův žleb - Obora
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Dolný tok Hornádu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Stráně u Popovic
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Popovické rybníky
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Dolný tok Oľšavy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Stráně u Popovic
IUCN IVNature Monument
Myšince
IUCN IVNature Monument
Kovářův žleb
IUCN IVNature Reserve
Olšava
IUCN IVNature Monument
Tůň u Kostelan
IUCN IVNature Monument
Zapikan
IUCN IIINature Monument / Private Nature Monument
1 page = 1 named river (aggregation of 16 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
336 distinct species · 1 547 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Olšava : 10 espèces reliées par 19 interactions GloBI sur 3 types (connectance 24.4%, filtre Serrano α=0.2). 3 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
133km
Max discharge
3,2m³/s
Max Strahler
3
Segments matched
16
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.