HydroBASINS lev08 watershed · #7080053190
Bassin de Río San Marcos
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 7 administrative regions : ?, El Estor, Livingston, Los Amates, Morales +2
Sub-basin area
2 014km²
Upstream area
8 757,5km²
Discharge
361,56m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Río Sauce493 km²
- Bassin de Río Sauce390 km²
7 dept-equivalent regions (GADM L2)
- 844.6 km²42.1% of basin
- 538.0 km²26.8% of basin
- 293.9 km²14.6% of basin
- 157.8 km²7.9% of basin
- 98.2 km²4.9% of basin
- 73.2 km²3.6% of basin
- 1.2 km²0.1% of basin
17 intersecting protected areas
Cerro San Gil
IUCN IIIWatershed Protection Reserve
287.25 km² overlap
Río Sarstun
IUCN IIIMultiple Use Area
176.72 km² overlap
Río Dulce
IUCN IINational Park
164.81 km² overlap
Chocón Machacas
IUCN IIProtected Biotope
35.52 km² overlap
Río Bonito
IUCN VPrivate Natural Reserve
10.80 km² overlap
Montaña Chiclera
IUCN IVRegional Municipal Park
6.63 km² overlap
Matriz Chocón
IUCN VPrivate Natural Reserve
5.89 km² overlap
Cástulo
IUCN VPrivate Natural Reserve
5.66 km² overlap
Quebrada Azul
IUCN VPrivate Natural Reserve
5.15 km² overlap
8 more protected areassorted by overlap area
El Higuerito
IUCN VPrivate Natural Reserve
5.11 km² overlap
Río Azul
IUCN VPrivate Natural Reserve
4.94 km² overlap
Santa Rosa
IUCN VPrivate Natural Reserve
4.59 km² overlap
Quebrada Seca
IUCN VPrivate Natural Reserve
4.39 km² overlap
Zavala
IUCN VPrivate Natural Reserve
1.20 km² overlap
Las Cuevas
IUCN VPrivate Natural Reserve
0.73 km² overlap
Candilejas
IUCN VPrivate Natural Reserve
0.70 km² overlap
Las Palmas
IUCN VPrivate Natural Reserve
0.41 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 238 distinct species · 74 157 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Marcos : 18 espèces reliées par 23 interactions GloBI sur 2 types (connectance 9.1%, filtre Serrano α=0.2). 5 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°
25,4°C
Annual rain
3 035mm
Moisture idx (CMI)
0,51
Runoff
1 201mm/an
PET
1 467mm
AET
1 373mm
Mean slope
6,3°
Water table
189cm
Forest
54%
Crops
5%
Urban
0%
Protected
31%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)