HydroBASINS lev08 watershed · #7080006370
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 2 administrative regions : San Blas, Santiago Ixcuintla
Sub-basin area
148,4km²
Upstream area
148,4km²
Discharge
3,02m³/s
Mean elev.
5m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 141.5 km²95.6% of basin
- 0.8 km²0.5% of basin
3 intersecting protected areas
Marismas Nacionales
IUCN Not ReportedWetland of International Importance (Ramsar Site)
115.32 km² overlap
Islands and Protected Areas of the Gulf of California
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
0.24 km² overlap
La Tovara
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 791 distinct species · 272 565 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 : 21 espèces reliées par 36 interactions GloBI sur 3 types (connectance 8.9%, filtre Serrano α=0.2). 8 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°
25,3°C
Annual rain
1 806mm
Moisture idx (CMI)
0,08
Runoff
657mm/an
PET
1 660mm
AET
950mm
Mean slope
0,3°
Water table
17cm
Forest
64%
Crops
72%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)