HydroBASINS lev08 watershed · #6080000490
Bassin de Arroyo Pichilin
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 : Coveñas, Toluviejo, Tolú
Sub-basin area
89,9km²
Upstream area
90km²
Discharge
1,13m³/s
Mean elev.
12m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 78.6 km²87.8% of basin
- 3.6 km²4.1% of basin
- 2.7 km²3.1% of basin
2 intersecting protected areas
Integrated Management Regional Districts
2.31 km² overlap
Regional Natural Parks
0.73 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
266 distinct species · 1 738 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Bassin de Arroyo Pichilin : 20 espèces reliées par 37 interactions GloBI sur 3 types (connectance 8.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,5°C
Annual rain
1 148mm
Moisture idx (CMI)
-0,33
Runoff
397mm/an
PET
1 701mm
AET
970mm
Mean slope
0,2°
Water table
9cm
Forest
1%
Crops
11%
Urban
7%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)