HydroBASINS lev08 watershed · #6080000990
Bassin de Río San Miguel
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 : Dibulla, Riohacha, San Juan del Cesar, Valledupar
Sub-basin area
536,2km²
Upstream area
536,5km²
Discharge
8,87m³/s
Mean elev.
2 180m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 530.9 km²99.4% of basin
- 2.1 km²0.4% of basin
- 0.9 km²0.2% of basin
- 0.2 km²0.0% of basin
2 intersecting protected areas
Sierra Nevada de Santa Marta
IUCN IINational Natural Park
498.20 km² overlap
Miramar
IUCN VICivil Society Nature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
768 distinct species · 2 833 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 San Miguel : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 6 types (connectance 8.5%, 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°
14,5°C
Annual rain
2 283mm
Moisture idx (CMI)
0,44
Runoff
731mm/an
PET
1 245mm
AET
1 109mm
Mean slope
27,5°
Water table
1 059cm
Forest
22%
Crops
1%
Urban
0%
Protected
91%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)