HydroBASINS lev08 watershed · #7080827480
Bassin de Río Grande de Santiago
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 5 administrative regions : La Yesca, San Cristóbal de la Barranca, Tequila, Teúl de González Ortega, Trinidad García de la Cadena
Sub-basin area
818,8km²
Upstream area
818,8km²
Discharge
2,25m³/s
Mean elev.
1 657m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 703.1 km²86.1% of basin
- Teúl de González OrtegaZacatecas · México73.7 km²9.0% of basin
- 25.6 km²3.1% of basin
- 13.3 km²1.6% of basin
- Trinidad García de la CadenaZacatecas · México0.9 km²0.1% of basin
1 intersecting protected areas
Natural Resources Protection Area
50.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
79 distinct species · 120 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Grande de Santiago : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 8.0%, 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°
19,0°C
Annual rain
867mm
Moisture idx (CMI)
-0,49
Runoff
87mm/an
PET
1 717mm
AET
733mm
Mean slope
13,5°
Water table
646cm
Forest
69%
Crops
2%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)