Ontologia

HydroBASINS lev08 watershed · #7080827780

Bassin de Extoraz

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 : Atarjea, Peñamiller, Tolimán

Pfafstetter: 75324605

Sub-basin area

187,6km²

Upstream area

2 555,8km²

Discharge

1,4m³/s

Mean elev.

1 721m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Extoraz145 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Sierra Gorda

    IUCN Ia

    Biosphere Reserve

    154.43 km² overlap

  • Sierra Gorda

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    154.43 km² overlap

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

Species present

841 distinct species · 3 104 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 104 obs · 5 cellules
Obs. / cellule
≥ 2 082
2 082–2 081
317–2 081
305–316
< 305

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

Ecological tissue

Sample of 41 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 Extoraz : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 128 interactions GloBI sur 5 types (connectance 14.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
128
Connectance
0.142
Patrimoniales
1
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°

19,3°C

Annual rain

496mm

Moisture idx (CMI)

-0,72

Runoff

40mm/an

PET

1 763mm

AET

416mm

Mean slope

13,7°

Water table

742cm

Forest

33%

Crops

2%

Urban

0%

Protected

83%

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