Ontologia

HydroBASINS lev08 watershed · #5080224860

Bassin de South Aligator 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

26% lakePfafstetter: 56254030

Sub-basin area

359,5km²

Upstream area

7 130,9km²

Discharge

119,17m³/s

Mean elev.

19m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de South Aligator River1022 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Kakadu

    IUCN II

    National Park (Commonwealth)

    357.19 km² overlap

  • Kakadu National Park

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    357.06 km² overlap

  • Kakadu National Park

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    357.05 km² overlap

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

Species present

1 289 distinct species · 86 305 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

86 305 obs · 11 cellules
Obs. / cellule
≥ 74 339
3 937–74 338
1 354–3 936
1 055–1 353
< 1 055

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

Ecological tissue

Sample of 33 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 South Aligator River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 5.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
27
Connectance
0.051
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°

27,8°C

Annual rain

1 422mm

Moisture idx (CMI)

-0,25

Runoff

631mm/an

PET

1 907mm

AET

990mm

Mean slope

0,6°

Water table

42cm

Forest

91%

Crops

0%

Urban

0%

Protected

100%

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