Ruisseau· 2 segments
Esca
Crosses 2 administrative regions : Navarra, Zaragoza
Total length
15km
Max discharge
15,4m³/s
Max Strahler
3
Segments matched
2
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
8 intersecting protected areas
Sierras de Leyre y Orba
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Sierras de Leyre y Orba
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Sierra de Illón y Foz de Burgui
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Foces de Benasa y Burgui
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Salvatierra - Fozes de Fago y Biniés
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Foz de Salvatierra
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Ríos Eska y Biniés
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Foz de Burgui
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
848 distinct species · 3 587 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Esca : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 13 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
15km
Max discharge
15,4m³/s
Max Strahler
3
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.