Ontologia

HydroBASINS lev08 watershed · #6080027080

Bassin de Estero San Pedro de Alcántara

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 4 administrative regions : Cardenal Caro, Colchagua, Curicó, Talca

Coastal basin 10% lakePfafstetter: 66251050

Sub-basin area

1 195,4km²

Upstream area

1 195,4km²

Discharge

1,96m³/s

Mean elev.

142m

Administrative coverage

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

492 distinct species · 50 036 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

50 036 obs · 40 cellules
Obs. / cellule
≥ 24 440
3 519–24 439
495–3 518
66–494
< 66

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

Ecological tissue

Sample of 34 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 Estero San Pedro de Alcántara : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
37
Connectance
0.062
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°

14,1°C

Annual rain

787mm

Moisture idx (CMI)

-0,37

Runoff

362mm/an

PET

1 243mm

AET

562mm

Mean slope

7,7°

Water table

479cm

Forest

40%

Crops

11%

Urban

0%

Protected

0%

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