HydroBASINS lev08 watershed · #6080033350
Bassin de Río Los Atajos
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 2 administrative regions : Eloy Alfaro, San Lorenzo
Sub-basin area
317,9km²
Upstream area
6 226,6km²
Discharge
283,95m³/s
Mean elev.
16m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Río Onzole2951 km²
- Bassin de Río Santiago245 km²
2 dept-equivalent regions (GADM L2)
- San LorenzoEsmeraldas · Ecuador173.2 km²54.7% of basin
- Eloy AlfaroEsmeraldas · Ecuador143.3 km²45.3% of basin
3 intersecting protected areas
Manglares Cayapas Mataje
IUCN IbEcological Reserve
68.29 km² overlap
Reserva Ecológica de Manglares Cayapas-Mataje
IUCN Not ReportedWetland of International Importance (Ramsar Site)
67.72 km² overlap
La Chiquita
IUCN IVWildlife Refuge
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
463 distinct species · 1 505 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Río Los Atajos : 14 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 3 types (connectance 10.7%, filtre Serrano α=0.2). 11 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°
26,0°C
Annual rain
2 315mm
Moisture idx (CMI)
0,33
Runoff
1 417mm/an
PET
1 536mm
AET
1 435mm
Mean slope
1,1°
Water table
20cm
Forest
42%
Crops
6%
Urban
0%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)