HydroBASINS lev08 watershed · #7080864600
Bassin de Río San Juan
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 : Dolores, Poptún, Santa Ana, Sayaxché
Sub-basin area
1 163,1km²
Upstream area
1 163,1km²
Discharge
29,82m³/s
Mean elev.
278m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 901.8 km²77.8% of basin
- 168.0 km²14.5% of basin
- 62.8 km²5.4% of basin
- 26.6 km²2.3% of basin
4 intersecting protected areas
San Román
IUCN IIBiological Reserve
46.38 km² overlap
Parque Nacional Yaxhá-Nakum-Naranjo
IUCN Not ReportedWetland of International Importance (Ramsar Site)
33.60 km² overlap
Montañas Mayas Chiquibul
IUCN VIBiosphere Reserve
13.00 km² overlap
Los Lagartos
IUCN VPrivate Natural Reserve
0.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
572 distinct species · 3 819 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Juan : 16 espèces reliées par 27 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 6 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°
24,2°C
Annual rain
1 827mm
Moisture idx (CMI)
0,22
Runoff
908mm/an
PET
1 414mm
AET
1 242mm
Mean slope
3,4°
Water table
95cm
Forest
92%
Crops
14%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)