HydroBASINS lev08 watershed · #7080871090
Bassin de Río Ulúa
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 19 administrative regions : Atima, Dolores, La Iguala, La Unión, Las Flores +13
Sub-basin area
1 368,6km²
Upstream area
4 291,5km²
Discharge
90,9m³/s
Mean elev.
844m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Higuito1762 km²
- Bassin de Río Grande Mejocote1161 km²
19 dept-equivalent regions (GADM L2)
- 273.1 km²20.0% of basin
- 180.1 km²13.2% of basin
- San José de ColinasSanta Bárbara · Honduras149.6 km²11.0% of basin
- 140.4 km²10.3% of basin
- Nuevo CelilacSanta Bárbara · Honduras124.5 km²9.1% of basin
- 122.5 km²9.0% of basin
- 118.7 km²8.7% of basin
- 74.7 km²5.5% of basin
11 moreFull L2 list
- San José61.8 km² · 4.5%
- Protección35.2 km² · 2.6%
- Veracruz31.2 km² · 2.3%
- Trinidad17.7 km² · 1.3%
- San Nicolás13.8 km² · 1.0%
- Dolores7.7 km² · 0.6%
- San Nicolás4.8 km² · 0.4%
- La Iguala4.1 km² · 0.3%
- La Unión2.1 km² · 0.2%
- Trinidad de Copán1.3 km² · 0.1%
- Las Flores0.4 km² · 0.0%
1 intersecting protected areas
Puca
IUCN IVWildlife Refuge
13.64 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
674 distinct species · 27 918 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Ulúa : 19 espèces reliées par 44 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 12 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°
22,2°C
Annual rain
1 467mm
Moisture idx (CMI)
-0,11
Runoff
684mm/an
PET
1 653mm
AET
1 163mm
Mean slope
14,2°
Water table
521cm
Forest
30%
Crops
21%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)