HydroBASINS lev08 watershed · #7080005140
Bassin de Río Chiquito
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 : Ajuchitlán del Progreso, Atoyac de Álvarez, San Miguel Totolapan, Técpan de Galeana
Sub-basin area
1 408,8km²
Upstream area
1 408,9km²
Discharge
12,01m³/s
Mean elev.
923m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1182.6 km²84.2% of basin
- 213.5 km²15.2% of basin
- 4.1 km²0.3% of basin
- 4.0 km²0.3% of basin
4 intersecting protected areas
Sierra Tecuani
IUCN VIBiosphere Reserve
572.45 km² overlap
Cordón Grande
IUCN VIVoluntary Conservation Area
83.49 km² overlap
Sierra Tecuani
IUCN IaBiosphere Reserve
13.03 km² overlap
Voluntary Conservation Area
1.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
707 distinct species · 2 353 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Chiquito : 31 espèces reliées par 74 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 13 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°
24,3°C
Annual rain
1 444mm
Moisture idx (CMI)
-0,16
Runoff
301mm/an
PET
1 728mm
AET
978mm
Mean slope
15,9°
Water table
631cm
Forest
70%
Crops
22%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)