Ontologia

HydroBASINS lev08 watershed · #6080319970

Bassin de Río Marañón

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 1 administrative regions : Loreto

3% lakePfafstetter: 62298351

Sub-basin area

787,7km²

Upstream area

295 374,7km²

Discharge

12 392,2m³/s

Mean elev.

119m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Marañón1460 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Pacaya - Samiria

    IUCN VI

    National Reserve

    350.11 km² overlap

  • Pacaya Samiria

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    350.10 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

237 distinct species · 439 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

439 obs · 12 cellules
Obs. / cellule
≥ 139
113–138
35–112
22–34
< 22

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Río Marañón : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 7.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
36
Connectance
0.073
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

26,6°C

Annual rain

2 226mm

Moisture idx (CMI)

0,22

Runoff

1 636mm/an

PET

1 739mm

AET

1 657mm

Mean slope

0,4°

Water table

15cm

Forest

91%

Crops

0%

Urban

0%

Protected

100%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)