HydroBASINS lev08 watershed · #7080836490
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 14 administrative regions : Acambay de Ruíz Castañeda, Amealco de Bonfil, Atlacomulco, Contepec, El Oro +9
Sub-basin area
1 789,8km²
Upstream area
5 842,8km²
Discharge
26,52m³/s
Mean elev.
2 551m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Lerma439 km²
- Bassin de Río Lerma140 km²
14 dept-equivalent regions (GADM L2)
- 287.0 km²16.1% of basin
- 262.9 km²14.7% of basin
- 242.3 km²13.6% of basin
- 237.5 km²13.3% of basin
- Amealco de BonfilQuerétaro · México211.5 km²11.9% of basin
- 179.9 km²10.1% of basin
- 147.0 km²8.2% of basin
- 65.6 km²3.7% of basin
6 moreFull L2 list
- San Felipe del Progreso64.3 km² · 3.6%
- Ixtlahuaca37.8 km² · 2.1%
- Timilpan23.7 km² · 1.3%
- El Oro14.9 km² · 0.8%
- Jerécuaro6.8 km² · 0.4%
- Morelos3.4 km² · 0.2%
10 intersecting protected areas
El Oso Bueno
IUCN Not ReportedState Park
31.61 km² overlap
Lic. Isidro Fabela
IUCN Not ReportedState Park
17.86 km² overlap
Mariposa Monarca
IUCN IaBiosphere Reserve
10.47 km² overlap
Mariposa Monarca
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
10.47 km² overlap
Santuario del Agua y Forestal Subcuenca Tributaria Arroyo Sila
IUCN Not ReportedState Park
4.94 km² overlap
Santuario del Agua Sistema Hidrológico Presa Huapango
IUCN Not ReportedState Park
2.73 km² overlap
Monarch Butterfly Biosphere Reserve
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
2.05 km² overlap
Isla de las Aves
IUCN Not ReportedState Park
1.44 km² overlap
El Ocotal
IUCN Not ReportedNatural Park
1.24 km² overlap
1 more protected areassorted by overlap area
Jose María Velasco
IUCN Not ReportedPark
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 607 distinct species · 40 555 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 : 19 espèces reliées par 107 interactions GloBI sur 4 types (connectance 17.0%, 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°
14,3°C
Annual rain
819mm
Moisture idx (CMI)
-0,45
Runoff
146mm/an
PET
1 489mm
AET
693mm
Mean slope
6,3°
Water table
499cm
Forest
50%
Crops
35%
Urban
14%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)