Ontologia

Province · idn

Riau

Indonesia

AfTropical, rainforest(100 %)

Species observed

4 702

Observations

42 445

Area

89 880,5km²

Ecological tissue

Sample of 35 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 Riau : 31 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 3 types (connectance 4.9%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
29
Connectance
0.049
Patrimoniales
4
Plus dense que (national)0 %(top 100%)

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

Species present

4 702 distinct species · 42 445 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

42 445 obs · 41 cellules
Obs. / cellule
≥ 11 450
2 808–11 449
498–2 807
258–497
< 258

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

26,4°C

Annual rain

2 792mm

Warmest m°

30,3°C

Coldest m°

22,5°C

Elevation: 42 m on average (min -53 m, max 1 113 m)

Bioclimatic detailsExpert
Annual mean temp.
26,4°C
Annual rain
2 792mm
Warmest month
30,3°C
Coldest month
22,5°C
Mean alt.
42m
Min
-53m
Max
1 113m
Std. dev.
75m
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

4,8

Org. C

123,3g/kg

Clay

39,2%

Sand

30,8%

Silt

30,0%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,8
Org. C
118,2g/kg
Clay
37,9%
Sand
31,8%
Silt
30,3%
5–15 cm
pH H₂O
4,8
Org. C
133,7g/kg
Clay
38,8%
Sand
31,0%
Silt
30,2%
15–30 cm
pH H₂O
4,8
Org. C
117,9g/kg
Clay
41,0%
Sand
29,5%
Silt
29,4%

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

Land cover

Forest77.0%
Crops2.6%
Built-up0.3%
Bare soil0.1%
Other (grassland, water…)20.0%

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

Hydrology144 basins · 50 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

7 502,1km

Lake surface here

95,15km²

Basins crossed

144

Max stream order

6

Max drainage

20 389km²

Discharge in basins

12 107,6m³/s

Mean precip.

2 572mm/an

Mean T°

26,7°C

Moisture idx

0,35

Max snow

1%

Mean runoff

1 079mm/an

Mean elev. (basins)

58m

Watersheds crossing here

135 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

25,7%

Pesticides

0,5kg/km²

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

Protected areas27

IUCN IV · 10IUCN Not Reported · 8IUCN VI · 3IUCN II · 2IUCN Ia · 2IUCN V · 2🌊 Marine · 6📍 Point sites · 1
Complete list

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

Sub-administrations153