HydroBASINS lev08 watershed · #7080827750
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 3 administrative regions : Ixtlahuacán del Río, San Cristóbal de la Barranca, Zapopan
Sub-basin area
431,8km²
Upstream area
71 129,3km²
Discharge
160,63m³/s
Mean elev.
1 452m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Achichilco496 km²
- Bassin de Río Blanco488 km²
3 dept-equivalent regions (GADM L2)
- 208.2 km²48.3% of basin
- 118.8 km²27.6% of basin
- 103.7 km²24.1% of basin
2 intersecting protected areas
Barranca del Río Santiago
IUCN Not ReportedMunicipal Park
70.57 km² overlap
Natural Resources Protection Area
22.41 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 163 distinct species · 4 750 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 8.4%, filtre Serrano α=0.2). 13 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°
20,2°C
Annual rain
920mm
Moisture idx (CMI)
-0,49
Runoff
157mm/an
PET
1 810mm
AET
778mm
Mean slope
12,7°
Water table
575cm
Forest
64%
Crops
23%
Urban
1%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)