HydroBASINS lev08 watershed · #7080811830
Bassin de Arroyo Grande
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 : Chalchihuites, Nombre de Dios, Súchil, Vicente Guerrero
Sub-basin area
719,4km²
Upstream area
719,4km²
Discharge
0,47m³/s
Mean elev.
2 199m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 418.5 km²58.3% of basin
- Nombre de DiosDurango · México201.0 km²28.0% of basin
- Vicente GuerreroDurango · México83.3 km²11.6% of basin
- ChalchihuitesZacatecas · México15.0 km²2.1% of basin
4 intersecting protected areas
La Michilía
IUCN VIBiosphere Reserve
187.69 km² overlap
Natural Resources Protection Area
28.51 km² overlap
Región denominada Cerro Blanco RB en La Michilía
IUCN Not ReportedProtected Area
20.86 km² overlap
La Michilía
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
12.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 798 distinct species · 13 872 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Arroyo Grande : 19 espèces reliées par 135 interactions GloBI sur 4 types (connectance 15.7%, filtre Serrano α=0.2). 23 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°
15,9°C
Annual rain
514mm
Moisture idx (CMI)
-0,66
Runoff
22mm/an
PET
1 526mm
AET
435mm
Mean slope
6,8°
Water table
738cm
Forest
56%
Crops
14%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)