Ontologia

District · PNG

Alotau

Papua New Guinea

AfTropical, rainforest(78 %)

Species observed

2 555

Observations

15 168

Area

8 002,9km²

Ecological tissue

Sample of 21 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 Alotau : 20 espèces reliées par 16 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
16
Connectance
0.076
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

2 555 distinct species · 15 168 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

15 168 obs · 160 cellules
Obs. / cellule
≥ 506
243–505
34–242
13–33
< 13

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

Climate

Mean T°

23,2°C

Annual rain

2 686mm

Warmest m°

27,4°C

Coldest m°

19,6°C

Elevation: 485 m on average (min -483 m, max 3 350 m)

Bioclimatic detailsExpert
Annual mean temp.
23,2°C
Annual rain
2 686mm
Warmest month
27,4°C
Coldest month
19,6°C
Mean alt.
485m
Min
-483m
Max
3 350m
Std. dev.
582m
Köppen-Geiger (dominant)
AfTropical, rainforest(78 %)Tropical

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,3

Org. C

59,6g/kg

Clay

40,6%

Sand

30,1%

Silt

29,3%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
72,0g/kg
Clay
39,3%
Sand
30,9%
Silt
29,8%
5–15 cm
pH H₂O
5,3
Org. C
59,8g/kg
Clay
39,7%
Sand
30,5%
Silt
29,7%
15–30 cm
pH H₂O
5,3
Org. C
46,9g/kg
Clay
42,8%
Sand
28,8%
Silt
28,3%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest86.0%
Crops0.8%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)13.1%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology25 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

120,1km

Basins crossed

25

Max stream order

3

Max drainage

1 878km²

Discharge in basins

164,8m³/s

Mean precip.

2 530mm/an

Mean T°

24,0°C

Moisture idx

0,42

Mean runoff

1 218mm/an

Mean elev. (basins)

482m

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

2,9%

Pesticides

0,4kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas1

IUCN Not Reported · 1🌊 Marine · 1

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN