HydroBASINS lev08 watershed · #6080374930
Bassin de Río Huallaga
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 : Lamas, Picota, San Martín, Ucayali
Sub-basin area
1 513,1km²
Upstream area
70 272,3km²
Discharge
3 039,35m³/s
Mean elev.
498m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Huallaga112 km²
- Bassin de Río Mayo11 km²
4 dept-equivalent regions (GADM L2)
- San MartínSan Martín · Peru1481.3 km²98.3% of basin
- LamasSan Martín · Peru18.0 km²1.2% of basin
- 5.0 km²0.3% of basin
- PicotaSan Martín · Peru2.2 km²0.1% of basin
3 intersecting protected areas
Cordillera Azul
IUCN IINational Park
324.99 km² overlap
Cordillera Escalera
IUCN VIRegional Conservation Area
172.94 km² overlap
Palmonte
IUCN VIPrivate Conservation Area
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 301 distinct species · 25 190 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Huallaga : 10 espèces reliées par 16 interactions GloBI sur 2 types (connectance 15.2%, filtre Serrano α=0.2). 5 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°
25,4°C
Annual rain
1 842mm
Moisture idx (CMI)
-0,02
Runoff
1 219mm/an
PET
1 870mm
AET
1 515mm
Mean slope
13,1°
Water table
385cm
Forest
94%
Crops
2%
Urban
0%
Protected
73%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)