HydroBASINS lev08 watershed · #7080003780
Bassin de Río Pijijiapan
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 15 administrative regions : Arriaga, Chahuites, Cintalapa, Jiquipilas, La Concordia +10
Sub-basin area
4 874,3km²
Upstream area
4 874,3km²
Discharge
0,44m³/s
Mean elev.
254m
Administrative coverage
15 dept-equivalent regions (GADM L2)
- 1620.5 km²33.4% of basin
- 952.1 km²19.6% of basin
- 806.3 km²16.6% of basin
- 720.7 km²14.8% of basin
- 238.2 km²4.9% of basin
- 127.4 km²2.6% of basin
- 86.7 km²1.8% of basin
- 72.4 km²1.5% of basin
7 moreFull L2 list
- San Francisco Ixhuatán33.4 km² · 0.7%
- Chahuites22.7 km² · 0.5%
- Villaflores18.3 km² · 0.4%
- Jiquipilas11.6 km² · 0.2%
- San Miguel Chimalapa11.1 km² · 0.2%
- La Concordia8.5 km² · 0.2%
- Reforma de Pineda6.3 km² · 0.1%
17 intersecting protected areas
La Sepultura
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
710.55 km² overlap
La Sepultura
IUCN IaBiosphere Reserve
710.54 km² overlap
Sistema Estuarino Puerto Arista
IUCN Not ReportedWetland of International Importance (Ramsar Site)
363.83 km² overlap
Sistema Estuarino Boca del Cielo
IUCN Not ReportedWetland of International Importance (Ramsar Site)
96.69 km² overlap
El Triunfo
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
62.69 km² overlap
El Triunfo
IUCN IaBiosphere Reserve
62.66 km² overlap
La Encrucijada
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
42.63 km² overlap
La Encrucijada
IUCN IaBiosphere Reserve
42.63 km² overlap
Reserva de la Biosfera La Encrucijada
IUCN Not ReportedWetland of International Importance (Ramsar Site)
42.63 km² overlap
8 more protected areassorted by overlap area
El Cordón del Retén
IUCN VIVoluntary Conservation Area
33.18 km² overlap
La Sepultura
IUCN Not ReportedEcological Conservation
13.24 km² overlap
Natural Resources Protection Area
9.50 km² overlap
Playa de Puerto Arista
IUCN IISanctuary
2.09 km² overlap
Los Naranjos
IUCN VIVoluntary Conservation Area
1.65 km² overlap
El Diamante
IUCN VIVoluntary Conservation Area
1.42 km² overlap
La Herradura
IUCN VIVoluntary Conservation Area
1.41 km² overlap
La Encrucijada
IUCN Not ReportedEcological Conservation
1.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 918 distinct species · 133 663 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Pijijiapan : 26 espèces reliées par 47 interactions GloBI sur 3 types (connectance 6.3%, filtre Serrano α=0.2). 13 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°
26,0°C
Annual rain
1 746mm
Moisture idx (CMI)
-0,07
Runoff
737mm/an
PET
1 844mm
AET
1 121mm
Mean slope
7,5°
Water table
296cm
Forest
30%
Crops
45%
Urban
1%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)