Ontologia

HydroBASINS lev08 watershed · #6080044760

Bassin de Arroyo El Tigre

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 : Calingasta, Las Heras, Sarmiento

EndorheicPfafstetter: 65260700

Sub-basin area

1 171,2km²

Upstream area

1 171,2km²

Discharge

1,39m³/s

Mean elev.

2 653m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Los Patos118 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • El Leoncito

    IUCN II

    National Park

    24.28 km² overlap

  • Manantiales

    IUCN Not Reported

    Nature Reserve of Defense

    0.07 km² overlap

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

Species present

86 distinct species · 258 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

258 obs · 20 cellules
Obs. / cellule
≥ 83
40–82
9–39
4–8
< 4

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

Ecological tissue

Sample of 11 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 Arroyo El Tigre : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 2 types (connectance 15.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
14
Connectance
0.154
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°

6,8°C

Annual rain

198mm

Moisture idx (CMI)

-0,80

Runoff

81mm/an

PET

1 051mm

AET

178mm

Mean slope

6,9°

Water table

665cm

Forest

0%

Crops

0%

Urban

0%

Protected

2%

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