Ontologia

Commune · IDN

Siak

Indonesia

AfTropical, rainforest(100 %)

Species observed

50

Observations

99

Area

413,3km²

Ecological tissue

Sample of 23 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 Siak : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 4 types (connectance 6.3%, filtre Serrano α=0.2).

Espèces affichées
23
Interactions affichées
16
Connectance
0.063
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

50 distinct species · 99 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

99 obs · 8 cellules
Obs. / cellule
≥ 48
48–47
5–47
2–4
< 2

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

Climate

Mean T°

26,5°C

Annual rain

2 744mm

Warmest m°

30,4°C

Coldest m°

22,5°C

Elevation: 10 m on average (min 3 m, max 29 m)

Bioclimatic detailsExpert
Annual mean temp.
26,5°C
Annual rain
2 744mm
Warmest month
30,4°C
Coldest month
22,5°C
Mean alt.
10m
Min
3m
Max
29m
Std. dev.
5m
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

4,7

Org. C

130,2g/kg

Clay

38,4%

Sand

32,3%

Silt

29,3%

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

Dominant lithology: smGLiMaggregated to Siak

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,7
Org. C
115,8g/kg
Clay
36,6%
Sand
33,6%
Silt
29,8%
5–15 cm
pH H₂O
4,7
Org. C
152,9g/kg
Clay
37,6%
Sand
32,8%
Silt
29,5%
15–30 cm
pH H₂O
4,7
Org. C
121,8g/kg
Clay
41,0%
Sand
30,5%
Silt
28,5%

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

Land cover

Forest68.8%
Crops2.9%
Built-up0.4%
Bare soil0.1%
Other (grassland, water…)27.9%

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

Hydrology6 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

49,5km

Basins crossed

6

Max stream order

6

Max drainage

11 645km²

Discharge in basins

348,0m³/s

Mean precip.

2 456mm/an

Mean T°

26,9°C

Moisture idx

0,30

Mean runoff

1 056mm/an

Mean elev. (basins)

21m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

37,7%

Pesticides

0,4kg/km²

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

Sub-administrations7