Ontologia

HydroBASINS lev08 watershed · #5080223120

Bassin de East Alligator 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 1 administrative regions : West Arnhem

Pfafstetter: 56256003

Sub-basin area

39km²

Upstream area

5 317,5km²

Discharge

136,25m³/s

Mean elev.

14m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de East Alligator River763 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Kakadu

    IUCN II

    National Park (Commonwealth)

    26.70 km² overlap

  • Kakadu National Park

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    25.89 km² overlap

  • Kakadu National Park

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    24.80 km² overlap

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

Species present

255 distinct species · 558 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

558 obs · 1 cellules
Obs. / cellule
≥ 558
558–557
558–557
558–557
< 558

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 East Alligator River : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
34
Connectance
0.078
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°

27,9°C

Annual rain

1 458mm

Moisture idx (CMI)

-0,21

Runoff

743mm/an

PET

1 838mm

AET

965mm

Mean slope

0,4°

Water table

50cm

Forest

68%

Crops

0%

Urban

0%

Protected

64%

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