HydroBASINS lev08 watershed · #7080006420
Bassin de Río San Pedro
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 5 administrative regions : Del Nayar, Rosamorada, Ruíz, Santiago Ixcuintla, Tuxpan
Sub-basin area
1 306,4km²
Upstream area
25 736,3km²
Discharge
84,61m³/s
Mean elev.
86m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 3 basins
- Bassin · #70800756801120 km²
- Bassin de Río San Pedro368 km²
- Bassin de Río San Pedro120 km²
5 dept-equivalent regions (GADM L2)
- 563.5 km²43.2% of basin
- 275.6 km²21.2% of basin
- 223.8 km²17.2% of basin
- 222.4 km²17.1% of basin
- 17.7 km²1.4% of basin
3 intersecting protected areas
Marismas Nacionales
IUCN Not ReportedWetland of International Importance (Ramsar Site)
362.66 km² overlap
Marismas Nacionales Nayarit
IUCN VIBiosphere Reserve
234.22 km² overlap
Natural Resources Protection Area
48.93 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 464 distinct species · 15 040 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 San Pedro : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 8 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°
24,7°C
Annual rain
1 439mm
Moisture idx (CMI)
-0,15
Runoff
592mm/an
PET
1 681mm
AET
908mm
Mean slope
3,3°
Water table
146cm
Forest
56%
Crops
49%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)