HydroBASINS lev08 watershed · #6080001060
Bassin de Río Viejo
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 : Barrancas, Distracción, Fonseca, Riohacha
Sub-basin area
869,9km²
Upstream area
869,9km²
Discharge
1,55m³/s
Mean elev.
101m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 841.7 km²97.1% of basin
- 4.2 km²0.5% of basin
- 1.6 km²0.2% of basin
- 0.2 km²0.0% of basin
4 intersecting protected areas
Los Flamencos
IUCN IbFauna and Flora Sanctuary
63.75 km² overlap
Integrated Management Regional Districts
55.36 km² overlap
San Martín
IUCN VICivil Society Nature Reserve
0.13 km² overlap
Delta del Río Ranchería
IUCN VIIntegrated Management Regional Districts
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
934 distinct species · 315 135 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Viejo : 21 espèces reliées par 39 interactions GloBI sur 2 types (connectance 10.3%, filtre Serrano α=0.2). 7 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°
27,7°C
Annual rain
974mm
Moisture idx (CMI)
-0,45
Runoff
297mm/an
PET
1 763mm
AET
817mm
Mean slope
2,2°
Water table
109cm
Forest
1%
Crops
0%
Urban
1%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)