HydroBASINS lev08 watershed · #2080578350
Bassin du Gave d'Oloron
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 5 administrative regions across 2 countries : Hautes-Pyrénées, Huesca, Landes, Navarra, Pyrénées-Atlantiques
Sub-basin area
2 666,9km²
Upstream area
2 667km²
Discharge
72m³/s
Mean elev.
752m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 2631.0 km²98.5% of basin
- 18.2 km²0.7% of basin
- 14.8 km²0.6% of basin
- 7.0 km²0.3% of basin
- 0.7 km²0.0% of basin
179 communes (GADM L5)Available for FRA, RWA
- Laruns244.66 km²98% commune
- Larrau106.62 km²84% commune
- Arette92.54 km²100% commune
- Sainte-Engrâce73.36 km²99% commune
- Oloron-Sainte-Marie68.33 km²98% commune
- Lescun62.43 km²100% commune
- Accous60.24 km²99% commune
- Borce57.80 km²99% commune
- Salies-de-Béarn50.98 km²96% commune
- Barcus48.34 km²100% commune
- Sarrance46.17 km²100% commune
- Lées-Athas43.81 km²100% commune
- Osse-en-Aspe42.31 km²100% commune
- Lanne-en-Barétous41.70 km²100% commune
- Aussurucq37.42 km²80% commune
- Chéraute36.97 km²100% commune
- Eaux-Bonnes36.95 km²98% commune
- Urdos36.14 km²98% commune
- Etsaut35.34 km²100% commune
- Aydius35.10 km²100% commune
- Aramits29.32 km²100% commune
- Esquiule28.74 km²100% commune
- Alçay-Alçabéhéty-Sunharette28.26 km²80% commune
- Arudy27.54 km²100% commune
- Bielle25.87 km²100% commune
- Lucq-de-Béarn24.80 km²50% commune
- Asasp-Arros23.70 km²100% commune
- Lacarry-Arhan-Charritte-de-Haut22.96 km²100% commune
- Castet22.78 km²96% commune
- Issor22.77 km²100% commune
- Escot22.63 km²100% commune
- Ordiarp22.02 km²70% commune
- Montory20.44 km²100% commune
- Ogeu-les-Bains20.10 km²87% commune
- Cette-Eygun18.69 km²100% commune
- Aste-Béon18.53 km²100% commune
- Aroue-Ithorots-Olhaïby18.01 km²100% commune
- Béost17.91 km²42% commune
- Bilhères17.61 km²100% commune
- Haux17.44 km²100% commune
- Licq-Athérey17.42 km²100% commune
- Moncayolle-Larrory-Mendibieu16.71 km²100% commune
- Lourdios-Ichère15.95 km²100% commune
- Came15.75 km²45% commune
- Géronce15.72 km²100% commune
- Tardets-Sorholus14.85 km²100% commune
- Buzy14.81 km²86% commune
- Sauveterre-de-Béarn14.74 km²100% commune
- Castetbon14.27 km²100% commune
- Carresse-Cassaber13.89 km²100% commune
- Sorde-l'Abbaye13.38 km²82% commune
- Féas13.31 km²100% commune
- Labastide-Villefranche13.18 km²85% commune
- Louvie-Soubiron13.18 km²51% commune
- Viodos-Abense-de-Bas12.81 km²98% commune
- Mauléon-Licharre12.51 km²99% commune
- Gère-Bélesten12.43 km²100% commune
- Domezain-Berraute12.19 km²56% commune
- Gotein-Libarrenx12.00 km²100% commune
- Bedous11.88 km²100% commune
- Musculdy11.81 km²49% commune
- Sus11.69 km²100% commune
- Castetnau-Camblong11.55 km²100% commune
- Charre11.38 km²100% commune
- Bugnein11.30 km²98% commune
- Gurs11.05 km²100% commune
- Ledeuix10.98 km²79% commune
- Oraàs10.84 km²100% commune
- Ance10.62 km²100% commune
- Roquiague9.89 km²100% commune
- Espès-Undurein9.85 km²100% commune
- Orion9.66 km²100% commune
- Camou-Cihigue9.56 km²100% commune
- Ogenne-Camptort9.52 km²83% commune
- Idaux-Mendy9.44 km²100% commune
- Herrère9.21 km²100% commune
- Escout9.07 km²100% commune
- Agnos9.01 km²100% commune
- Sauguis-Saint-Étienne8.97 km²100% commune
- Montfort8.50 km²100% commune
- Rivehaute8.34 km²100% commune
- Etchebar8.33 km²100% commune
- Aren8.30 km²100% commune
- Buziet8.27 km²97% commune
- Moumour8.16 km²100% commune
- L'Hôpital-d'Orion8.14 km²98% commune
- Castagnède8.10 km²100% commune
- Lurbe-Saint-Christau7.88 km²100% commune
- Préchacq-Josbaig7.83 km²100% commune
- Andrein7.81 km²100% commune
- Ossas-Suhare7.73 km²100% commune
- Ozenx-Montestrucq7.62 km²46% commune
- Audaux7.52 km²99% commune
- Charritte-de-Bas7.51 km²100% commune
- Arrast-Larrebieu7.41 km²100% commune
- Etcharry7.38 km²100% commune
- Méritein7.38 km²100% commune
- Dognen7.08 km²100% commune
- Araujuzon6.98 km²100% commune
- Saint-Gladie-Arrive-Munein6.97 km²100% commune
- Saucède6.95 km²100% commune
- Nabas6.90 km²100% commune
- Eysus6.88 km²100% commune
- Laàs6.77 km²100% commune
- Izeste6.74 km²100% commune
- Précilhon6.72 km²100% commune
- Menditte6.53 km²100% commune
- Osserain-Rivareyte6.45 km²100% commune
- Navarrenx6.43 km²100% commune
- Orriule6.33 km²100% commune
- Trois-Villes6.33 km²100% commune
- Lohitzun-Oyhercq6.31 km²36% commune
- Narp6.22 km²100% commune
- Laguinge-Restoue6.16 km²100% commune
- Escou6.16 km²100% commune
- Angous6.01 km²100% commune
- Alos-Sibas-Abense5.92 km²100% commune
- Saint-Goin5.92 km²100% commune
- Geüs-d'Oloron5.90 km²100% commune
- Athos-Aspis5.87 km²100% commune
- Viellenave-de-Navarrenx5.69 km²100% commune
- Escos5.41 km²100% commune
- Araux5.40 km²100% commune
- Lay-Lamidou5.39 km²100% commune
- Saint-Pé-de-Léren5.38 km²100% commune
- Autevielle-Saint-Martin-Bideren5.33 km²89% commune
- Préchacq-Navarrenx5.30 km²100% commune
- Burgaronne5.27 km²100% commune
- Jasses5.20 km²100% commune
- Verdets5.14 km²100% commune
- Bastanès4.95 km²100% commune
- Poey-d'Oloron4.84 km²100% commune
- Bescat4.77 km²76% commune
- Orin4.75 km²100% commune
- Abitain4.70 km²71% commune
- Ainharp4.69 km²33% commune
- Garindein4.58 km²70% commune
- Goès4.52 km²99% commune
- Léren4.17 km²100% commune
- Louvie-Juzon4.09 km²7% commune
- Tabaille-Usquain4.02 km²100% commune
- Ossenx3.96 km²100% commune
- Barraute-Camu3.94 km²100% commune
- Estialescq3.88 km²77% commune
- Vielleségure3.85 km²27% commune
- Espiute3.75 km²100% commune
- Susmiou3.63 km²100% commune
- Lichans-Sunhar3.48 km²100% commune
- Lichos3.34 km²100% commune
- Lasseube3.19 km²6% commune
- Auterrive3.01 km²100% commune
- Estos2.91 km²100% commune
- Gurmençon2.89 km²100% commune
- Bérenx2.84 km²21% commune
- Guinarthe-Parenties2.68 km²100% commune
- Berrogain-Laruns2.63 km²100% commune
- Sévignacq-Meyracq2.42 km²16% commune
- Arbouet-Sussaute2.18 km²15% commune
- Gestas2.09 km²100% commune
- L'Hôpital-Saint-Blaise2.08 km²100% commune
- Loubieng1.72 km²7% commune
- Saint-Dos1.71 km²100% commune
- Bidos1.08 km²100% commune
- Oeyregave0.95 km²13% commune
- Sainte-Colome0.78 km²8% commune
- Arrens-Marsous0.67 km²1% commune
- Lanneplaà0.54 km²7% commune
- Saint-Cricq-du-Gave0.47 km²6% commune
- Sauvelade0.42 km²4% commune
- Salles-Mongiscard0.40 km²7% commune
- Gan0.29 km²1% commune
- Arancou0.27 km²5% commune
- Lahontan0.25 km²2% commune
- Arbérats-Sillègue0.10 km²2% commune
- Monein0.06 km²0% commune
- Cardesse0.03 km²0% commune
- Lasseubetat0.00 km²0% commune
- Pagolle0.00 km²0% commune
- Rébénacq0.00 km²0% commune
30 intersecting protected areas
Hautes vallées d'Aspe et d'Ossau
IUCN Not ReportedSpecial Protection Area (Birds Directive)
483.95 km² overlap
National Park - Buffer zone/Area of adhesion
287.39 km² overlap
Massif de Sesques et de l'Ossau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
254.75 km² overlap
Haute Soule : massif de la Pierre Saint-Martin
IUCN Not ReportedSpecial Protection Area (Birds Directive)
182.44 km² overlap
Montagnes du Barétous
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
143.97 km² overlap
Pyrénées
IUCN IINational Park - Core Area
143.50 km² overlap
Massif de l'Anie et d'Espelunguère
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
140.08 km² overlap
Montagnes de la Haute Soule
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
133.44 km² overlap
Massif du Ger et du Lurien
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
129.96 km² overlap
21 more protected areassorted by overlap area
Massif du Montagnon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
86.79 km² overlap
Massif du Moulle de Jaout
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
75.76 km² overlap
Montagnes du Pic des Escaliers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
63.46 km² overlap
Massif des Arbailles
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
56.51 km² overlap
Massif du Layens
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
55.88 km² overlap
Haute Soule : forêt des Arbailles
IUCN Not ReportedSpecial Protection Area (Birds Directive)
39.81 km² overlap
Pènes du Moulle de Jaout
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.38 km² overlap
Haute Soule: massif forestier, gorges d'Holzarté et d'Olhadubi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
26.03 km² overlap
Le Gave d'Oloron (cours d'eau) et marais de Labastide-Villefranche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
25.33 km² overlap
Château d'Orthez et bords du gave
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.90 km² overlap
Le Gave d'Ossau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.14 km² overlap
Le Saison (cours d'eau)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.20 km² overlap
Eth Thuron des Aureys
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.78 km² overlap
Los Valles
IUCN Not ReportedSpecial Protection Area (Birds Directive)
18.77 km² overlap
Los Valles
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.42 km² overlap
Valles Occidentales
IUCN VNatural Park
17.24 km² overlap
Le Gave d'Aspe et le Lourdios (cours d'eau)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.93 km² overlap
Larra-Aztaparreta
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.59 km² overlap
Larra-Aztaparreta
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.59 km² overlap
Haute Soule : forêt d'Iraty, Orgambidexka et Pic des Escaliers
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.47 km² overlap
Larra
IUCN IVNature Reserve
5.66 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 608 distinct species · 924 254 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 du Gave d'Oloron : 19 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 6 types (connectance 16.8%, filtre Serrano α=0.2). 12 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°
9,7°C
Annual rain
1 065mm
Moisture idx (CMI)
0,17
Runoff
827mm/an
PET
862mm
AET
699mm
Mean slope
15,1°
Water table
493cm
Forest
58%
Crops
7%
Urban
1%
Protected
37%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)