HydroBASINS lev08 watershed · #6080337880
Bassin de Río Marañón
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 : Bagua, Jaén, San Ignacio
Sub-basin area
1 203,4km²
Upstream area
63 634,9km²
Discharge
1 609,04m³/s
Mean elev.
1 188m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Chinchipe856 km²
- Bassin de Río Marañón91 km²
3 dept-equivalent regions (GADM L2)
- 1053.5 km²87.9% of basin
- 139.5 km²11.6% of basin
- San IgnacioCajamarca · Peru5.2 km²0.4% of basin
3 intersecting protected areas
Copallín
IUCN VIPrivate Conservation Area
2.11 km² overlap
Cordillera de Colán
IUCN IIINational Sanctuary
1.18 km² overlap
Chayu Nain
IUCN VICommunal Reserve
1.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 622 distinct species · 10 792 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Marañón : 17 espèces reliées par 27 interactions GloBI sur 2 types (connectance 11.7%, 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°
22,0°C
Annual rain
1 540mm
Moisture idx (CMI)
-0,06
Runoff
1 164mm/an
PET
1 618mm
AET
1 253mm
Mean slope
19,1°
Water table
609cm
Forest
82%
Crops
1%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)