Ruisseau· 14 segments
Urola ibaia
Crosses 1 administrative regions : Guipúzcoa
Total length
61km
Max discharge
10,4m³/s
Max Strahler
3
Segments matched
14
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- GuipúzcoaPaís Vasco · Spain42.3 kmin this dpt
6 intersecting protected areas
Aizkorri-Aratz
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Aizkorri-Aratz
IUCN VNatural Park
Protected Landscape
Izarraitz
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Urolako itsasadarra / Ría del Urola
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Encina de Aizarnazabal
IUCN IIINatural Monument
1 page = 1 named river (aggregation of 14 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
511 distinct species · 3 585 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Urola ibaia : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 119 interactions GloBI sur 6 types (connectance 11.0%, filtre Serrano α=0.2). 11 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
61km
Max discharge
10,4m³/s
Max Strahler
3
Segments matched
14
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.