HydroBASINS lev08 watershed · #7080838180
Bassin de Río Lerma
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 4 administrative regions : Almoloya de Juárez, Ixtlahuaca, Jocotitlán, San Felipe del Progreso
Sub-basin area
139,7km²
Upstream area
3 614,3km²
Discharge
17,05m³/s
Mean elev.
2 616m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Malacota648 km²
- Bassin de Río Lerma102 km²
4 dept-equivalent regions (GADM L2)
- 109.6 km²78.7% of basin
- 20.1 km²14.4% of basin
- 7.0 km²5.0% of basin
- 2.6 km²1.9% of basin
1 intersecting protected areas
Santuario del Agua y Forestal Subcuenca Tributaria Arroyo Sila
IUCN Not ReportedState Park
0.43 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
225 distinct species · 447 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Lerma : 35 espèces reliées par 114 interactions GloBI sur 5 types (connectance 11.0%, filtre Serrano α=0.2). 11 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°
13,9°C
Annual rain
790mm
Moisture idx (CMI)
-0,45
Runoff
173mm/an
PET
1 448mm
AET
669mm
Mean slope
2,7°
Water table
170cm
Forest
79%
Crops
67%
Urban
19%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)