HydroBASINS lev08 watershed · #7080854180
Bassin de Río Grande
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 : Concepción Pápalo, Cuyamecalco Villa de Zaragoza, San Juan Bautista Cuicatlán, San Miguel Santa Flor, Santa María Tecomavaca
Sub-basin area
178,6km²
Upstream area
4 944,6km²
Discharge
102,37m³/s
Mean elev.
1 476m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Sabino389 km²
- Bassin de Río Grande172 km²
5 dept-equivalent regions (GADM L2)
- 113.2 km²63.6% of basin
- 63.1 km²35.4% of basin
- 1.2 km²0.7% of basin
- 0.5 km²0.3% of basin
- 0.1 km²0.0% of basin
3 intersecting protected areas
Tehuacán-Cuicatlán
IUCN VIBiosphere Reserve
101.12 km² overlap
Tehuacán-Cuicatlán
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
100.77 km² overlap
Tehuacán-Cuicatlán Valley: originary habitat of Mesoamerica
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
14.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
860 distinct species · 2 797 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 : 36 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 80 interactions GloBI sur 4 types (connectance 6.5%, 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°
19,3°C
Annual rain
1 032mm
Moisture idx (CMI)
-0,34
Runoff
944mm/an
PET
1 623mm
AET
802mm
Mean slope
17,1°
Water table
592cm
Forest
88%
Crops
18%
Urban
0%
Protected
57%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)