HydroBASINS lev08 watershed · #7080860390
Bassin de Rio 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 36 administrative regions : Cuilápam de Guerrero, Guadalupe Etla, Magdalena Apasco, Nazareno Etla, Nuevo Zoquiápam +31
Sub-basin area
1 076,4km²
Upstream area
1 076,6km²
Discharge
9,94m³/s
Mean elev.
1 987m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
36 dept-equivalent regions (GADM L2)
- 99.4 km²9.3% of basin
- 93.9 km²8.7% of basin
- 84.2 km²7.9% of basin
- 75.7 km²7.1% of basin
- 75.3 km²7.0% of basin
- 74.6 km²7.0% of basin
- 62.6 km²5.8% of basin
- 55.1 km²5.1% of basin
28 moreFull L2 list
- San Juan Bautista Guelache52.1 km² · 4.9%
- San Pablo Etla44.4 km² · 4.1%
- Santo Tomás Mazaltepec44.0 km² · 4.1%
- Santiago Tenango37.6 km² · 3.5%
- Santa María Atzompa29.6 km² · 2.8%
- San Andrés Ixtlahuaca28.8 km² · 2.7%
- San Lorenzo Cacaotepec27.6 km² · 2.6%
- Magdalena Apasco27.0 km² · 2.5%
- Teococuilco de Marcos Pérez26.2 km² · 2.4%
- San Pablo Cuatro Venados25.2 km² · 2.4%
- San Pedro Ixtlahuaca20.8 km² · 1.9%
- Santa María Peñoles16.8 km² · 1.6%
- Soledad Etla12.5 km² · 1.2%
- Reyes Etla12.0 km² · 1.1%
- Nuevo Zoquiápam11.8 km² · 1.1%
- Villa de Etla8.3 km² · 0.8%
- Cuilápam de Guerrero5.4 km² · 0.5%
- Nazareno Etla4.3 km² · 0.4%
- Guadalupe Etla4.3 km² · 0.4%
- San Jacinto Amilpas4.2 km² · 0.4%
- Santa Cruz Xoxocotlán3.6 km² · 0.3%
- Santiago Tlazoyaltepec3.3 km² · 0.3%
- San Andrés Huayápam1.1 km² · 0.1%
- San Miguel Peras0.5 km² · 0.0%
- Santa Catarina Ixtepeji0.5 km² · 0.0%
- San Andrés Nuxiño0.3 km² · 0.0%
- Santa Lucía del Camino0.1 km² · 0.0%
- San Antonio de la Cal0.0 km² · 0.0%
4 intersecting protected areas
La Siempre Viva
IUCN VIVoluntary Conservation Area
12.97 km² overlap
La Capitana
IUCN VIVoluntary Conservation Area
9.58 km² overlap
Benito Juárez
IUCN IINational Park
8.20 km² overlap
Cerro del Fortín
IUCN Not ReportedState Park
0.87 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 302 distinct species · 250 327 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Rio Atoyac : 19 espèces reliées par 51 interactions GloBI sur 4 types (connectance 13.5%, filtre Serrano α=0.2). 9 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°
17,4°C
Annual rain
812mm
Moisture idx (CMI)
-0,49
Runoff
454mm/an
PET
1 631mm
AET
665mm
Mean slope
11,0°
Water table
445cm
Forest
55%
Crops
20%
Urban
14%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)