HydroBASINS lev08 watershed · #2080595100
Bassin de Río Ara
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 2 administrative regions across 2 countries : Hautes-Pyrénées, Huesca
Sub-basin area
728,1km²
Upstream area
728,2km²
Discharge
10,08m³/s
Mean elev.
1 417m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 725.5 km²99.5% of basin
- 3.8 km²0.5% of basin
2 communes (GADM L5)Available for FRA, RWA
23 intersecting protected areas
Viñamala
IUCN Not ReportedSpecial Protection Area (Birds Directive)
136.16 km² overlap
Bujaruelo - Garganta de los Navarros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
95.96 km² overlap
Sierra de Canciás - Silves
IUCN Not ReportedSpecial Protection Area (Birds Directive)
61.67 km² overlap
Ordesa y Monte Perdido
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
61.09 km² overlap
Ordesa y Monte Perdido
IUCN Not ReportedSpecial Protection Area (Birds Directive)
61.09 km² overlap
Ordesa y Monte Perdido
IUCN IINacional Park
60.89 km² overlap
Pyrénées - Mont Perdu
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
60.47 km² overlap
Tendeñera
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
39.45 km² overlap
Silves
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.51 km² overlap
14 more protected areassorted by overlap area
Río Ara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.18 km² overlap
Sobrepuerto
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.73 km² overlap
Puerto de Otal - Cotefablo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.84 km² overlap
Pyrénées
IUCN IINational Park - Core Area
2.77 km² overlap
Cirque de Gavarnie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.48 km² overlap
Sierra y Cañones de Guara
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.33 km² overlap
Natural Monument
2.10 km² overlap
Santa María de Ascaso
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.91 km² overlap
Cuenca del río Yesa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.39 km² overlap
Gaube, Vignemale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.10 km² overlap
Ossoue, Aspé, Cestrède
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.96 km² overlap
Estaubé, Gavarnie, Troumouse et Barroude
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.88 km² overlap
Puertos de Panticosa, Bramatuero y Brazatos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.74 km² overlap
Natural Monument
0.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 927 distinct species · 121 761 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Río Ara : 25 espèces + 5 bulles famille, 58 interactions GloBI documentées sur 3 types (connectance 13.3%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
6,5°C
Annual rain
998mm
Moisture idx (CMI)
0,19
Runoff
462mm/an
PET
754mm
AET
629mm
Mean slope
20,7°
Water table
712cm
Forest
77%
Crops
3%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)