Commune · CHL
Chillán
Chile
Species observed
627
Observations
8 799
Area
474,7km²
Ecological tissue
Sample of 46 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).
Indicateurs du tissu écologique
Tissu écologique de Chillán : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 5 types (connectance 7.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
627 distinct species · 8 799 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,5°C
Annual rain
1 504mm
Warmest m°
26,8°C
Coldest m°
4,3°C
Elevation: 128 m on average (min 24 m, max 244 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,2
Org. C
79,1g/kg
Clay
25,0%
Sand
35,2%
Silt
39,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Diguillín
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 0 lakes · 17 rivers
Hydrology metrics for this exact territory
Stream length here
162,4km
Basins crossed
7
Max stream order
6
Max drainage
10 003km²
Discharge in basins
59,7m³/s
Mean precip.
1 087mm/an
Mean T°
12,0°C
Moisture idx
-0,09
Max snow
19%
Mean runoff
867mm/an
Mean elev. (basins)
457m
Watersheds crossing here
- Bassin de Río Chillánsub-area795,4 km²overlap172.97 km²36%
- Bassin de Estero Malloasub-area288,8 km²overlap124.56 km²26%
- Bassin de Río Changaralsub-area765,5 km²overlap56.00 km²12%
- Bassin de Río Catosub-area947,8 km²overlap46.08 km²10%
- Bassin de Río Ñublesub-area2 085,4 km²overlap42.98 km²9%
- Bassin de Río Diguillínsub-area4 497,4 km²overlap31.74 km²7%
- Bassin de Río Itatasub-area622,2 km²overlap0.31 km²0%
Rivers / streams (17, ord ≥ 4)
- Río Chillánord 3len here29.93 km28%total109 km
- Río Ñubleord 6len here28.57 km14%total201 km
- Estero Malloaord 2len here27.49 km99%total28 km
- Río Catoord 4len here14.63 km12%total120 km
- Canal Lantañoord 1len here14.46 km82%total18 km
- Río Larquiord 5len here14.16 km15%total95 km
- Estero Las Toscasord 1len here7.62 km100%total8 km
- Estero Pichilluancoord 3len here6.49 km28%total23 km
- Estero Las Lechuzas o Paso Hondoord 2len here5.25 km68%total8 km
- Estero de Colliguayord 2len here4.39 km68%total6 km
- Estero Boyénord 2len here3.86 km100%total4 km
- Río Itataord 6len here2.17 km1%total191 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
4,3nW
Built-up
229,0%
Pesticides
56,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)