Ontologia

HydroBASINS lev08 watershed · #6080095740

Bassin de Wenamu River

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 6 administrative regions across 2 countries : Arau, El Callao, Gran Sabana, Paruima, Rest of Region 7 +1

Pfafstetter: 61622506

Sub-basin area

3 741,5km²

Upstream area

3 741,5km²

Discharge

128,71m³/s

Mean elev.

460m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Cuyuní33 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Imataca

    IUCN VI

    Forest Reserve (RF)

    1665.11 km² overlap

  • Canaima National Park

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    124.86 km² overlap

  • Canaima

    IUCN II

    National Park (PN)

    21.37 km² overlap

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

Species present

1 246 distinct species · 26 461 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

26 461 obs · 37 cellules
Obs. / cellule
≥ 21 405
166–21 404
27–165
9–26
< 9

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

Ecological tissue

Sample of 9 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 Wenamu River : 8 espèces reliées par 7 interactions GloBI sur 2 types (connectance 19.4%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
7
Connectance
0.194
Patrimoniales
0
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°

24,6°C

Annual rain

1 806mm

Moisture idx (CMI)

0,08

Runoff

1 086mm/an

PET

1 644mm

AET

1 404mm

Mean slope

5,3°

Water table

176cm

Forest

93%

Crops

1%

Urban

0%

Protected

47%

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