HydroBASINS lev08 watershed · #2080593590

Bassin de Riu Noguera de Cardós

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 across 2 countries : Ariège, Lleida

2% lakePfafstetter: 21604288

Sub-basin area

437,8km²

Upstream area

438km²

Discharge

4,65m³/s

Mean elev.

1 891m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Noguera Pallaresa12 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

Lleida
Cataluña · Spain
436.2 km²
99.5% of basin
Ariège
Occitanie · France
1.9 km²
0.4% of basin

4 communes (GADM L5)Available for FRA, RWA

Auzat
Ariège
1.43 km²1% commune
Ustou
Ariège
0.25 km²0% commune
Aulus-les-Bains
Ariège
0.22 km²0% commune
Couflens
Ariège
0.03 km²0% commune

9 intersecting protected areas

Alt Pirineu
IUCN V
Protection Plan
361.81 km² overlap
Alt Pirineu
IUCN V
Natural Park
351.60 km² overlap
Alt Pallars
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
285.56 km² overlap
Alt Pallars
IUCN Not Reported
Special Protection Area (Birds Directive)
285.56 km² overlap
Pyrénées Ariégeoises
IUCN V
Regional Nature Park
1.84 km² overlap
Parc natural Comunal de les Valls del Comapedrosa
IUCN Not Reported
Emerald Network
0.62 km² overlap
Parque Natural Comunal de los Valles del Comapedrosa
IUCN IV
Wetland of International Importance (Ramsar Site)
0.48 km² overlap
Parc Natural Comunal de les Valls del Comapedrosa
IUCN IV
Municipal Natural Park
0.48 km² overlap
Massif du Mont Valier
IUCN Not Reported
Special Protection Area (Birds Directive)
0.02 km² overlap

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

Species present

3 381 distinct species · 51 673 observations

Source: GBIF Occurrence snapshot 2026-05-01.

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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Riu Noguera de Cardós : 24 espèces + 6 bulles famille, 55 interactions GloBI documentées sur 4 types (connectance 12.6%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées

Interactions affichées

Connectance

0.126

Patrimoniales

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°

4,6°C

Annual rain

1 232mm

Moisture idx (CMI)

0,46

Runoff

331mm/an

PET

644mm

AET

614mm

Mean slope

25,2°

Water table

876cm

Forest

72%

Crops

Urban

Protected

78%

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