HydroBASINS lev08 watershed · #2080591300
Bassin de Baia 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 4 administrative regions : Burgos, La Rioja, Vizcaya, Álava
Sub-basin area
712,3km²
Upstream area
5 774,9km²
Discharge
97,95m³/s
Mean elev.
698m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Jerea616 km²
- Bassin de Río Omecillo350 km²
4 dept-equivalent regions (GADM L2)
- 346.5 km²48.6% of basin
- 342.3 km²48.0% of basin
- 17.5 km²2.5% of basin
- 7.2 km²1.0% of basin
20 intersecting protected areas
Montes Obarenes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
118.73 km² overlap
Montes Obarenes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
118.73 km² overlap
Natural Park
62.90 km² overlap
Montes de Miranda de Ebro y Ameyugo - ZEPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
59.29 km² overlap
Arkamu-Gibillo-Arrastaria
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
51.19 km² overlap
Gorbeia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
44.96 km² overlap
Gorbeia
IUCN VNatural Park
44.94 km² overlap
Montes de Miranda de Ebro y Ameyugo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.96 km² overlap
Obarenes-Sierra de Cantabria
IUCN Not ReportedSpecial Protection Area (Birds Directive)
15.04 km² overlap
11 more protected areassorted by overlap area
Obarenes-Sierra de Cantabria
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.04 km² overlap
Natura 2000
15.04 km² overlap
Diapiro de Añana
IUCN VProtected Landscape
7.26 km² overlap
Baia ibaia / Río Baia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.49 km² overlap
Urkabustaizko irla-hariztiak / Robledales isla de Urkabustaiz
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.65 km² overlap
Riberas del Río Ebro y afluentes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.94 km² overlap
Caicedo Yuso eta Arreoko lakua / Lago de Caicedo Yuso y Arreo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.48 km² overlap
Ebro ibaia / Río Ebro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.70 km² overlap
Itxina
IUCN IIINatural Monument
0.02 km² overlap
Pino Piñonero de Lantaron
IUCN IIINatural Monument
0.00 km² overlap
Tejo de Izarra
IUCN IIINatural Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 447 distinct species · 111 789 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Baia ibaia : 23 espèces reliées par 91 interactions GloBI sur 6 types (connectance 16.2%, 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).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,1°C
Annual rain
813mm
Moisture idx (CMI)
-0,08
Runoff
529mm/an
PET
879mm
AET
633mm
Mean slope
7,6°
Water table
292cm
Forest
52%
Crops
41%
Urban
3%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)