Ontologia

HydroBASINS lev08 watershed · #6080026780

Bassin de Río Andalién

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 : Bío-Bío, Concepción, Diguillín

Pfafstetter: 66230020

Sub-basin area

767,2km²

Upstream area

767,2km²

Discharge

24,38m³/s

Mean elev.

214m

Administrative coverage

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Nonguén

    IUCN Not Reported

    National Park

    27.71 km² overlap

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

Species present

1 160 distinct species · 48 021 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

48 021 obs · 26 cellules
Obs. / cellule
≥ 17 211
7 192–17 210
500–7 191
256–499
< 256

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

Ecological tissue

Sample of 35 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 Río Andalién : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 5 types (connectance 5.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
34
Connectance
0.054
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°

12,1°C

Annual rain

1 374mm

Moisture idx (CMI)

0,22

Runoff

1 001mm/an

PET

1 068mm

AET

668mm

Mean slope

6,4°

Water table

307cm

Forest

59%

Crops

6%

Urban

5%

Protected

4%

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