Ontologia

HydroBASINS lev08 watershed · #2080579220

Bassin de l'Adour

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 1 administrative regions : Hautes-Pyrénées

2% lakePfafstetter: 23212099

Sub-basin area

527,6km²

Upstream area

527,6km²

Discharge

10,06m³/s

Mean elev.

1 021m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de l'Estéous391 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

73 communes (GADM L5)

9 intersecting protected areas

  • Pyrénées [Aire D\'Adhésion]

    IUCN V

    National Park - Buffer zone/Area of adhesion

    127.44 km² overlap

  • Liset de Hount Blanque

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    40.43 km² overlap

  • Lac Bleu Léviste

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    19.73 km² overlap

  • Néouvielle

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.28 km² overlap

  • Vallée de l'Adour

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    8.17 km² overlap

  • Adour Et Affluents

    IUCN IV

    Biotope Protection Order

    2.15 km² overlap

  • Aulon

    IUCN IV

    Regional Nature Reserve

    0.33 km² overlap

  • L\'Adour

    IUCN IV

    Biotope Protection Order

    0.13 km² overlap

  • Barèges, Ayré, Piquette

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

10 181 distinct species · 367 617 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

367 617 obs · 33 cellules
Obs. / cellule
≥ 40 298
22 591–40 297
13 095–22 590
9 124–13 094
< 9 124

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de l'Adour : 16 espèces reliées par 107 interactions GloBI sur 5 types (connectance 23.0%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
107
Connectance
0.230
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,2°C

Annual rain

1 025mm

Moisture idx (CMI)

0,16

Runoff

517mm/an

PET

811mm

AET

668mm

Mean slope

14,3°

Water table

472cm

Forest

59%

Crops

12%

Urban

11%

Protected

24%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)