HydroBASINS lev08 watershed · #6080315420
Bassin de Río Calvas
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 across 2 countries : Ayabaca, Macará
Sub-basin area
122,1km²
Upstream area
2 219,8km²
Discharge
27,08m³/s
Mean elev.
943m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Calvas575 km²
- Bassin de Quebrada Chocán163 km²
2 dept-equivalent regions (GADM L2)
- AyabacaPiura · Peru61.7 km²50.8% of basin
- 59.9 km²49.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
229 distinct species · 504 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Calvas : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 4.4%, filtre Serrano α=0.2). 6 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°
22,7°C
Annual rain
824mm
Moisture idx (CMI)
-0,54
Runoff
296mm/an
PET
1 796mm
AET
697mm
Mean slope
18,6°
Water table
786cm
Forest
39%
Crops
7%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)