HydroBASINS lev08 watershed · #7080864010
Bassin de Río Atoyac
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 23 administrative regions : Miahuatlán de Porfirio Díaz, San Jacinto Tlacotepec, San Jerónimo Coatlán, San Juan Lachao, San Juan Quiahije +18
Sub-basin area
2 381,5km²
Upstream area
8 082km²
Discharge
92,29m³/s
Mean elev.
1 478m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Atoyac630 km²
- Bassin de Río Atoyac57 km²
23 dept-equivalent regions (GADM L2)
- 498.5 km²21.0% of basin
- 286.2 km²12.1% of basin
- 198.2 km²8.3% of basin
- 188.2 km²7.9% of basin
- 178.3 km²7.5% of basin
- 138.9 km²5.9% of basin
- 128.6 km²5.4% of basin
- 122.0 km²5.1% of basin
15 moreFull L2 list
- San Juan Quiahije119.4 km² · 5.0%
- San Pablo Coatlán118.5 km² · 5.0%
- San Vicente Coatlán101.7 km² · 4.3%
- San Juan Lachao87.9 km² · 3.7%
- San Pedro Juchatengo58.2 km² · 2.5%
- San Jacinto Tlacotepec55.6 km² · 2.3%
- San Miguel Coatlán35.8 km² · 1.5%
- San Sebastián Coatlán23.5 km² · 1.0%
- Santa María Zaniza15.8 km² · 0.7%
- Santiago Textitlán6.7 km² · 0.3%
- Santa Cruz Xitla4.8 km² · 0.2%
- Santa Ana3.9 km² · 0.2%
- Yogana1.8 km² · 0.1%
- San Simón Almolongas0.6 km² · 0.0%
- Santiago Yaitepec0.2 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 923 distinct species · 6 748 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 51 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 Atoyac : 37 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 6.2%, 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°
20,1°C
Annual rain
1 266mm
Moisture idx (CMI)
-0,28
Runoff
479mm/an
PET
1 764mm
AET
947mm
Mean slope
16,6°
Water table
590cm
Forest
81%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)