Ontologia

Province · idn

Kepulauan Riau

Indonesia

AfTropical, rainforest(100 %)

Species observed

415

Observations

947

Area

8 278,2km²

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 Kepulauan Riau : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 7.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
46
Connectance
0.073
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

415 distinct species · 947 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

947 obs · 27 cellules
Obs. / cellule
≥ 295
227–294
12–226
4–11
< 4

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

Climate

Mean T°

26,9°C

Annual rain

2 885mm

Warmest m°

28,7°C

Coldest m°

24,9°C

Elevation: 32 m on average (min -90 m, max 789 m)

Bioclimatic detailsExpert
Annual mean temp.
26,9°C
Annual rain
2 885mm
Warmest month
28,7°C
Coldest month
24,9°C
Mean alt.
32m
Min
-90m
Max
789m
Std. dev.
64m
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

114,5g/kg

Clay

39,3%

Sand

29,9%

Silt

30,7%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
117,7g/kg
Clay
37,6%
Sand
31,0%
Silt
31,4%
5–15 cm
pH H₂O
5,0
Org. C
123,7g/kg
Clay
38,7%
Sand
30,3%
Silt
31,0%
15–30 cm
pH H₂O
5,0
Org. C
102,1g/kg
Clay
41,7%
Sand
28,5%
Silt
29,8%

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

Land cover

Forest74.0%
Crops3.2%
Built-up0.7%
Bare soil0.9%
Other (grassland, water…)21.1%

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

Hydrology12 basins · 22 lakes · 18 rivers

Hydrology metrics for this exact territory

Stream length here

129,7km

Lake surface here

26,64km²

Basins crossed

12

Max stream order

4

Max drainage

2 219km²

Discharge in basins

94,4m³/s

Mean precip.

2 535mm/an

Mean T°

26,6°C

Moisture idx

0,39

Mean runoff

1 541mm/an

Mean elev. (basins)

34m

Watersheds crossing here

3 more basins

Lakes (22, top by area)

13 more lakes

Rivers / streams (18, ord ≥ 4)

6 more river segments

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

Human pressure

Pop. density

3hab/km²

Night light

1,0nW

Built-up

74,0%

Pesticides

0,6kg/km²

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

Protected areas12

IUCN Not Reported · 6IUCN VI · 4IUCN V · 1IUCN Ia · 1🌊 Marine · 8

Bintan II

IUCN VI

Marine Park · 2024

8 436 km²

Lingga

IUCN Not Reported

Marine Protected Area · 2019

3 714 km²

Bintan II_02

IUCN Not Reported

Marine Protected Area · 2019

1 904 km²

Complete list

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

Sub-administrations39