Ontologia

HydroBASINS lev08 watershed · #6080808750

Bassin de Pirayu

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 7 administrative regions across 2 countries : Capitán Meza, Edelira, Libertador General San Martín, Natalio, Tabaí +2

Pfafstetter: 64251354

Sub-basin area

1 224,1km²

Upstream area

1 224,1km²

Discharge

26,55m³/s

Mean elev.

265m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Paraná3716 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Edelira

    IUCN IV

    Managed Resource Reserve

    10.83 km² overlap

  • San Rafael

    IUCN II

    National Park Reservations

    0.31 km² overlap

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

Species present

345 distinct species · 1 132 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 132 obs · 25 cellules
Obs. / cellule
≥ 670
86–669
20–85
3–19
< 3

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

Ecological tissue

Sample of 36 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 Pirayu : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 5 types (connectance 6.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
43
Connectance
0.068
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°

20,5°C

Annual rain

1 620mm

Moisture idx (CMI)

0,04

Runoff

684mm/an

PET

1 561mm

AET

1 321mm

Mean slope

3,1°

Water table

219cm

Forest

38%

Crops

58%

Urban

1%

Protected

0%

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