Ontologia

HydroBASINS lev08 watershed · #2080020220

Bassin de Urola ibaia

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 1 administrative regions : Guipúzcoa

Pfafstetter: 23190994

Sub-basin area

341,9km²

Upstream area

342km²

Discharge

10,4m³/s

Mean elev.

405m

Administrative coverage

1 dept-equivalent regions (GADM L2)

10 intersecting protected areas

  • Izarraitz

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    14.29 km² overlap

  • Hernio-Gazume

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.94 km² overlap

  • Aizkorri-Aratz

    IUCN V

    Natural Park

    7.85 km² overlap

  • Aizkorri-Aratz

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.82 km² overlap

  • Pagoeta

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.90 km² overlap

  • Pagoeta

    IUCN V

    Natural Park

    6.55 km² overlap

  • Urolako itsasadarra / Ría del Urola

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.12 km² overlap

  • Tramo Litoral Deba-Zumaia

    IUCN V

    Protected Landscape

    0.19 km² overlap

  • Garate-Santa Barbara

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.15 km² overlap

1 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

4 143 distinct species · 49 155 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

49 155 obs · 10 cellules
Obs. / cellule
≥ 15 299
15 299–15 298
4 950–15 298
2 931–4 949
< 2 931

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 34 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 Bassin de Urola ibaia : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 4 types (connectance 11.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
71
Connectance
0.119
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

12,6°C

Annual rain

1 211mm

Moisture idx (CMI)

0,28

Runoff

965mm/an

PET

868mm

AET

733mm

Mean slope

16,9°

Water table

503cm

Forest

98%

Crops

2%

Urban

11%

Protected

4%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)