Ontologia

HydroBASINS lev08 watershed · #2080020330

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 2 administrative regions : Landes, Pyrénées-Atlantiques

Pfafstetter: 23212010

Sub-basin area

44,4km²

Upstream area

16 831,2km²

Discharge

371,96m³/s

Mean elev.

27m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

7 communes (GADM L5)

2 intersecting protected areas

  • L'Adour

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.19 km² overlap

  • La Nive

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.34 km² overlap

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

Species present

4 572 distinct species · 116 962 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

116 962 obs · 5 cellules
Obs. / cellule
≥ 36 865
36 865–36 864
29 738–36 864
23 302–29 737
< 23 302

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

Ecological tissue

Sample of 34 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 : 24 espèces reliées par 121 interactions GloBI sur 6 types (connectance 20.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
121
Connectance
0.203
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°

13,8°C

Annual rain

1 337mm

Moisture idx (CMI)

0,35

Runoff

963mm/an

PET

871mm

AET

770mm

Mean slope

2,0°

Water table

103cm

Forest

22%

Crops

9%

Urban

92%

Protected

0%

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