HydroBASINS lev08 watershed · #7080847550
Bassin de Rio Nexapa
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 20 administrative regions : Amecameca, Atlautla, Atlixco, Calpan, Epatlán +15
Sub-basin area
862km²
Upstream area
862km²
Discharge
4,25m³/s
Mean elev.
2 303m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
20 dept-equivalent regions (GADM L2)
- 183.0 km²21.3% of basin
- San Nicolás de los RanchosPuebla · México161.6 km²18.8% of basin
- TianguismanalcoPuebla · México133.0 km²15.5% of basin
- 72.3 km²8.4% of basin
- HuaquechulaPuebla · México57.0 km²6.6% of basin
- 48.0 km²5.6% of basin
- 41.0 km²4.8% of basin
- Santa Isabel CholulaPuebla · México32.8 km²3.8% of basin
12 moreFull L2 list
- Izúcar de Matamoros31.2 km² · 3.6%
- San Jerónimo Tecuanipan27.9 km² · 3.2%
- Nealtican18.9 km² · 2.2%
- Huejotzingo13.8 km² · 1.6%
- Amecameca11.3 km² · 1.3%
- Tochimilco6.5 km² · 0.8%
- San Pedro Cholula5.7 km² · 0.7%
- Atlautla5.3 km² · 0.6%
- Tilapa4.4 km² · 0.5%
- Tlapanalá4.0 km² · 0.5%
- San Gregorio Atzompa1.6 km² · 0.2%
- Epatlán0.1 km² · 0.0%
3 intersecting protected areas
Iztaccíhuatl-Popocatépetl
IUCN IINational Park
64.37 km² overlap
Los Volcanes
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
64.37 km² overlap
Sierra de Tentzo
IUCN Not ReportedState Reserve
30.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 271 distinct species · 22 381 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Nexapa : 24 espèces reliées par 108 interactions GloBI sur 5 types (connectance 13.2%, filtre Serrano α=0.2). 17 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°
16,3°C
Annual rain
941mm
Moisture idx (CMI)
-0,39
Runoff
168mm/an
PET
1 608mm
AET
766mm
Mean slope
6,4°
Water table
317cm
Forest
73%
Crops
35%
Urban
14%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)