Ontologia

District · PNG

Madang

Papua New Guinea

AfTropical, rainforest(100 %)

Species observed

4 447

Observations

60 507

Area

2 703,1km²

Ecological tissue

Sample of 4 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 Madang : 4 espèces reliées par 2 interactions GloBI sur 1 type (connectance 33.3%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
2
Connectance
0.333
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

4 447 distinct species · 60 507 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

60 507 obs · 56 cellules
Obs. / cellule
≥ 24 711
2 437–24 710
115–2 436
38–114
< 38

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

Climate

Mean T°

25,0°C

Annual rain

3 483mm

Warmest m°

28,8°C

Coldest m°

21,7°C

Elevation: 280 m on average (min -344 m, max 1 230 m)

Bioclimatic detailsExpert
Annual mean temp.
25,0°C
Annual rain
3 483mm
Warmest month
28,8°C
Coldest month
21,7°C
Mean alt.
280m
Min
-344m
Max
1 230m
Std. dev.
276m
Köppen-Geiger (dominant)
AfTropical, rainforest(100 %)Tropical

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

Soil & lithology

pH H₂O

5,5

Org. C

51,2g/kg

Clay

41,8%

Sand

26,3%

Silt

31,9%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
64,7g/kg
Clay
39,9%
Sand
27,4%
Silt
32,7%
5–15 cm
pH H₂O
5,5
Org. C
48,4g/kg
Clay
41,1%
Sand
26,6%
Silt
32,4%
15–30 cm
pH H₂O
5,5
Org. C
40,5g/kg
Clay
44,4%
Sand
24,9%
Silt
30,7%

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

Land cover

Forest94.8%
Crops0.1%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)5.0%

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

Hydrology8 basins · 1 lakes · 20 rivers

Hydrology metrics for this exact territory

Stream length here

424,8km

Lake surface here

0,20km²

Basins crossed

8

Max stream order

5

Max drainage

2 086km²

Discharge in basins

146,8m³/s

Mean precip.

3 397mm/an

Mean T°

25,4°C

Moisture idx

0,55

Mean runoff

1 915mm/an

Mean elev. (basins)

290m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (20, ord ≥ 4)

8 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

12,4%

Pesticides

0,4kg/km²

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

Protected areas5

IUCN Not Reported · 5🌊 Marine · 4

Tab Island

IUCN Not Reported

Locally Managed Marine Area · 2006

10 km²

Balek

IUCN Not Reported

Wildlife Sanctuary · 1977

6 km²

Laugum Marine

IUCN Not Reported

Locally Managed Marine Area · 2006

1 km²

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