HydroBASINS lev08 watershed · #7080830760
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 6 administrative regions : Acatic, San Ignacio Cerro Gordo, Tepatitlán de Morelos, Tonalá, Tototlán +1
Sub-basin area
849,7km²
Upstream area
849,9km²
Discharge
3,73m³/s
Mean elev.
1 764m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 384.6 km²45.4% of basin
- 361.8 km²42.7% of basin
- 88.4 km²10.4% of basin
- 10.5 km²1.2% of basin
- 1.9 km²0.2% of basin
- 0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
875 distinct species · 2 549 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 : 30 espèces reliées par 94 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 14 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°
18,5°C
Annual rain
873mm
Moisture idx (CMI)
-0,50
Runoff
135mm/an
PET
1 735mm
AET
738mm
Mean slope
3,6°
Water table
431cm
Forest
29%
Crops
27%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)