HydroBASINS lev08 watershed · #2080587470
Bassin de Gave de Gavarnie
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
491,1km²
Upstream area
491,2km²
Discharge
6,57m³/s
Mean elev.
1 893m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 489.3 km²99.5% of basin
- 2.6 km²0.5% of basin
28 communes (GADM L5)Available for FRA, RWA
- Gèdre141.42 km²99% commune
- Gavarnie80.76 km²96% commune
- Luz-Saint-Sauveur50.52 km²100% commune
- Barèges44.19 km²99% commune
- Sers30.75 km²99% commune
- Sazos28.87 km²98% commune
- Villelongue20.05 km²100% commune
- Beaucens18.84 km²50% commune
- Betpouey17.83 km²100% commune
- Chèze10.41 km²100% commune
- Grust8.99 km²90% commune
- Viscos6.14 km²95% commune
- Viey5.72 km²100% commune
- Saligos4.45 km²100% commune
- Cauterets4.26 km²3% commune
- Viella3.17 km²100% commune
- Vizos2.73 km²100% commune
- Esterre1.81 km²100% commune
- Soulom1.66 km²62% commune
- Esquièze-Sère1.50 km²100% commune
- Aragnouet1.19 km²1% commune
- Bagnères-de-Bigorre1.15 km²1% commune
- Artalens-Souin1.05 km²30% commune
- Sassis0.60 km²100% commune
- Vielle-Aure0.43 km²1% commune
- Gazost0.29 km²1% commune
- Pierrefitte-Nestalas0.28 km²14% commune
- Saint-Lary-Soulan0.26 km²0% commune
22 intersecting protected areas
National Park - Buffer zone/Area of adhesion
363.76 km² overlap
Pyrénées
IUCN IINational Park - Core Area
121.99 km² overlap
Cirque de Gavarnie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
89.40 km² overlap
Pyrénées - Mont Perdu
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
84.58 km² overlap
Estaubé, Gavarnie, Troumouse et Barroude
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
83.07 km² overlap
Ossoue, Aspé, Cestrède
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
51.07 km² overlap
Lac Bleu Léviste
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
49.56 km² overlap
Pic Long Campbielh
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
44.54 km² overlap
Néouvielle
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.23 km² overlap
13 more protected areassorted by overlap area
Barèges, Ayré, Piquette
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.45 km² overlap
Gaube, Vignemale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.61 km² overlap
Ordesa y Monte Perdido
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.26 km² overlap
Ordesa y Monte Perdido
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.26 km² overlap
Ordesa y Monte Perdido
IUCN IINacional Park
1.85 km² overlap
Alto Valle del Cinca
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.68 km² overlap
Alto Cinca
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.68 km² overlap
Bujaruelo - Garganta de los Navarros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.61 km² overlap
Viñamala
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.61 km² overlap
Gaves de Pau et de Cauterets (et gorge de Cauterets)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.54 km² overlap
Natural Monument
0.50 km² overlap
Néouvielle
IUCN IVNational Nature Reserve
0.49 km² overlap
Natural Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 819 distinct species · 204 763 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Gave de Gavarnie : 18 espèces + 5 bulles famille, 42 interactions GloBI documentées sur 5 types (connectance 16.6%, 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°
3,8°C
Annual rain
1 256mm
Moisture idx (CMI)
0,47
Runoff
502mm/an
PET
633mm
AET
597mm
Mean slope
26,8°
Water table
999cm
Forest
55%
Crops
2%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)