Ontologia

Subdivision · IDN

Pulau Alalak

Indonesia

AfTropical, rainforest(100 %)

Species observed

14

Observations

15

Area

4,3km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Species present

14 distinct species · 15 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

15 obs · 1 cellules
Obs. / cellule
≥ 15
15–14
15–14
15–14
< 15

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

Climate

Mean T°

26,8°C

Annual rain

2 894mm

Warmest m°

31,4°C

Coldest m°

23,2°C

Elevation: 2 m on average (min 1 m, max 3 m)

Bioclimatic detailsExpert
Annual mean temp.
26,8°C
Annual rain
2 894mm
Warmest month
31,4°C
Coldest month
23,2°C
Mean alt.
2m
Min
1m
Max
3m
Std. dev.
1m
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

5,0

Org. C

158,9g/kg

Clay

34,7%

Sand

25,2%

Silt

40,1%

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

Dominant lithology: suGLiMaggregated to Barito Kuala

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
153,0g/kg
Clay
34,0%
Sand
25,6%
Silt
40,3%
5–15 cm
pH H₂O
5,0
Org. C
157,6g/kg
Clay
34,0%
Sand
25,4%
Silt
40,5%
15–30 cm
pH H₂O
5,0
Org. C
166,1g/kg
Clay
36,2%
Sand
24,4%
Silt
39,4%

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

Land cover

Forest15.5%
Crops2.3%
Built-up0.6%
Bare soil0.2%
Other (grassland, water…)81.4%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

1,7km

Basins crossed

2

Max stream order

6

Max drainage

13 235km²

Discharge in basins

37,2m³/s

Mean precip.

2 422mm/an

Mean T°

26,7°C

Moisture idx

0,34

Mean runoff

1 173mm/an

Mean elev. (basins)

5m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

5,5nW

Built-up

61,4%

Pesticides

0,6kg/km²

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

Protected areas1

IUCN IV · 1🌊 Marine · 1

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