HydroBASINS lev08 watershed · #2080586810
Bassin de Gave de Labat de Bun
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 3 administrative regions across 2 countries : Hautes-Pyrénées, Huesca, Pyrénées-Atlantiques
Sub-basin area
209,4km²
Upstream area
209,4km²
Discharge
3,24m³/s
Mean elev.
1 647m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 208.1 km²99.2% of basin
- 1.3 km²0.6% of basin
- 0.3 km²0.1% of basin
19 communes (GADM L5)Available for FRA, RWA
- Arrens-Marsous93.29 km²94% commune
- Estaing58.23 km²78% commune
- Arras-en-Lavedan22.33 km²88% commune
- Arcizans-Avant8.59 km²57% commune
- Aucun7.94 km²59% commune
- Gaillagos5.42 km²66% commune
- Arcizans-Dessus3.01 km²60% commune
- Bun2.61 km²100% commune
- Argelès-Gazost2.27 km²76% commune
- Sireix1.76 km²100% commune
- Gez1.52 km²38% commune
- Lau-Balagnas0.87 km²29% commune
- Eaux-Bonnes0.81 km²2% commune
- Laruns0.35 km²0% commune
- Cauterets0.17 km²0% commune
- Béost0.17 km²0% commune
- Ferrières0.06 km²0% commune
- Arbéost0.04 km²0% commune
- Ayzac-Ost0.01 km²0% commune
9 intersecting protected areas
National Park - Buffer zone/Area of adhesion
152.78 km² overlap
Pyrénées
IUCN IINational Park - Core Area
53.87 km² overlap
Gabizos (et vallée d'Arrens, versant sud-est du Gabizos)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
26.93 km² overlap
Moun Né de Cauterets, pic de Cabaliros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.92 km² overlap
Péguère, Barbat, Cambalès
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.98 km² overlap
Massif du Ger et du Lurien
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.96 km² overlap
Cabecera del río Aguas Limpias
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.41 km² overlap
Hautes vallées d'Aspe et d'Ossau
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.39 km² overlap
Natural Monument
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 583 distinct species · 151 929 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Labat de Bun : 31 espèces + 5 bulles famille, 75 interactions GloBI documentées sur 4 types (connectance 11.9%, 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°
5,0°C
Annual rain
1 190mm
Moisture idx (CMI)
0,39
Runoff
582mm/an
PET
688mm
AET
628mm
Mean slope
24,8°
Water table
749cm
Forest
56%
Crops
3%
Urban
0%
Protected
99%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)