HydroBASINS lev08 watershed · #7080825220
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 : Hostotipaquillo, Ixtlán del Río, Jala, La Yesca, Santa María del Oro
Sub-basin area
687,2km²
Upstream area
100 368,7km²
Discharge
209,74m³/s
Mean elev.
1 127m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
5 dept-equivalent regions (GADM L2)
- 268.6 km²39.2% of basin
- 256.4 km²37.4% of basin
- 105.6 km²15.4% of basin
- 53.1 km²7.7% of basin
- 1.7 km²0.3% of basin
1 intersecting protected areas
Natural Resources Protection Area
558.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
491 distinct species · 1 303 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 4 types (connectance 9.7%, filtre Serrano α=0.2). 15 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°
21,5°C
Annual rain
951mm
Moisture idx (CMI)
-0,47
Runoff
225mm/an
PET
1 803mm
AET
803mm
Mean slope
19,8°
Water table
794cm
Forest
57%
Crops
23%
Urban
0%
Protected
81%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)