Ontologia

HydroBASINS lev08 watershed · #6080017110

Bassin de Arroyo Las Piedras

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 9 administrative regions : Almirante Brown, Avellaneda, Berazategui, Distrito Federal, Florencio Varela +4

Coastal basinPfafstetter: 64300071

Sub-basin area

514,6km²

Upstream area

514,6km²

Discharge

0,15m³/s

Mean elev.

17m

Administrative coverage

9 dept-equivalent regions (GADM L2)

1 more

2 intersecting protected areas

  • Pereyra Iraola

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    33.50 km² overlap

  • Punta Lara

    IUCN Ia

    Mixed Integral Nature Reserve

    19.36 km² overlap

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

Species present

1 960 distinct species · 78 135 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

78 135 obs · 21 cellules
Obs. / cellule
≥ 29 156
6 816–29 155
2 123–6 815
1 447–2 122
< 1 447

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

Ecological tissue

Sample of 37 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 Las Piedras : 32 espèces reliées par 35 interactions GloBI sur 5 types (connectance 5.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
35
Connectance
0.053
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°

16,6°C

Annual rain

988mm

Moisture idx (CMI)

-0,17

Runoff

307mm/an

PET

1 190mm

AET

839mm

Mean slope

0,3°

Water table

25cm

Forest

19%

Crops

0%

Urban

77%

Protected

2%

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