HydroBASINS lev08 watershed · #7080853240
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 17 administrative regions : Chiquihuitlán de Benito Juárez, Concepción Pápalo, Cuyamecalco Villa de Zaragoza, Huautepec, Huautla de Jiménez +12
Sub-basin area
422,3km²
Upstream area
11 543,6km²
Discharge
177,14m³/s
Mean elev.
1 274m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Salado426 km²
- Bassin de Río Grande179 km²
17 dept-equivalent regions (GADM L2)
- 152.2 km²36.1% of basin
- 71.0 km²16.9% of basin
- 33.6 km²8.0% of basin
- 30.6 km²7.3% of basin
- 28.8 km²6.8% of basin
- 25.6 km²6.1% of basin
- 20.3 km²4.8% of basin
- 17.7 km²4.2% of basin
9 moreFull L2 list
- Chiquihuitlán de Benito Juárez15.0 km² · 3.6%
- Santa María Tecomavaca13.9 km² · 3.3%
- Santa María la Asunción6.5 km² · 1.6%
- San Bartolomé Ayautla4.9 km² · 1.2%
- Concepción Pápalo0.5 km² · 0.1%
- San Miguel Santa Flor0.3 km² · 0.1%
- San Juan de los Cués0.1 km² · 0.0%
- San Martín Toxpalan0.0 km² · 0.0%
- San Jerónimo Tecóatl0.0 km² · 0.0%
3 intersecting protected areas
Tehuacán-Cuicatlán
IUCN VIBiosphere Reserve
30.70 km² overlap
Tehuacán-Cuicatlán
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
30.15 km² overlap
Tehuacán-Cuicatlán Valley: originary habitat of Mesoamerica
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 016 distinct species · 2 707 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 : 33 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 52 interactions GloBI sur 5 types (connectance 5.8%, filtre Serrano α=0.2). 10 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°
20,0°C
Annual rain
1 876mm
Moisture idx (CMI)
0,10
Runoff
1 062mm/an
PET
1 594mm
AET
1 126mm
Mean slope
23,4°
Water table
772cm
Forest
50%
Crops
26%
Urban
4%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)