Ontologia

HydroBASINS lev08 watershed · #2080576460

Bassin du Luy de Béarn

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 : Landes, Pyrénées-Atlantiques

3% lakePfafstetter: 23212060

Sub-basin area

1 212,9km²

Upstream area

1 213,1km²

Discharge

28,42m³/s

Mean elev.

124m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de l'Adour198 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

161 communes (GADM L5)

10 intersecting protected areas

  • Barthes de l'Adour

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    20.94 km² overlap

  • Barthes de l'Adour

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    8.37 km² overlap

  • Vallon du Clamondé

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.25 km² overlap

  • fouquet

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.05 km² overlap

  • L'Adour

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.03 km² overlap

  • landes de sault-de-navailles

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.02 km² overlap

  • pelouse seche de leme

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.02 km² overlap

  • Gave de Pau

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.02 km² overlap

  • vallon du clamonde

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.01 km² overlap

1 more protected areas

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

Species present

4 959 distinct species · 337 944 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

337 944 obs · 57 cellules
Obs. / cellule
≥ 18 297
9 393–18 296
6 514–9 392
5 077–6 513
< 5 077

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

Ecological tissue

Sample of 40 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 du Luy de Béarn : 27 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 136 interactions GloBI sur 6 types (connectance 17.4%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
136
Connectance
0.174
Patrimoniales
3
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°

12,7°C

Annual rain

1 026mm

Moisture idx (CMI)

0,05

Runoff

728mm/an

PET

967mm

AET

730mm

Mean slope

2,8°

Water table

135cm

Forest

29%

Crops

51%

Urban

2%

Protected

0%

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