Ontologia

Regency · IDN

Rokan Hilir

Indonesia

AfTropical, rainforest(100 %)

Species observed

73

Observations

616

Area

9 092,6km²

Ecological tissue

Sample of 7 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 Rokan Hilir : 7 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2).

Espèces affichées
7
Interactions affichées
4
Connectance
0.191
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

73 distinct species · 616 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

616 obs · 21 cellules
Obs. / cellule
≥ 555
6–554
2–5
1–1
< 1

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 853mm

Warmest m°

30,7°C

Coldest m°

22,7°C

Elevation: 13 m on average (min -24 m, max 64 m)

Bioclimatic detailsExpert
Annual mean temp.
26,8°C
Annual rain
2 853mm
Warmest month
30,7°C
Coldest month
22,7°C
Mean alt.
13m
Min
-24m
Max
64m
Std. dev.
10m
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

32,9%

Silt

32,4%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
149,5g/kg
Clay
33,9%
Sand
33,6%
Silt
32,6%
5–15 cm
pH H₂O
5,0
Org. C
172,4g/kg
Clay
34,7%
Sand
32,8%
Silt
32,5%
15–30 cm
pH H₂O
5,0
Org. C
154,9g/kg
Clay
35,5%
Sand
32,2%
Silt
32,2%

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

Land cover

Forest65.2%
Crops4.2%
Built-up0.2%
Bare soil0.2%
Other (grassland, water…)30.2%

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

Hydrology23 basins · 2 lakes · 14 rivers

Hydrology metrics for this exact territory

Stream length here

655,2km

Lake surface here

0,33km²

Basins crossed

23

Max stream order

6

Max drainage

19 228km²

Discharge in basins

1 824,2m³/s

Mean precip.

2 733mm/an

Mean T°

26,8°C

Moisture idx

0,38

Mean runoff

929mm/an

Mean elev. (basins)

27m

Watersheds crossing here

14 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,2nW

Built-up

21,5%

Pesticides

0,5kg/km²

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

Protected areas2

IUCN VI · 1IUCN Ia · 1🌊 Marine · 2

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

Sub-administrations49