Ontologia

Regency · IDN

Tapanuli Selatan

Indonesia

AfTropical, rainforest(98 %)

Species observed

1 249

Observations

4 164

Area

4 119,5km²

Ecological tissue

Sample of 42 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 Tapanuli Selatan : 34 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 4 types (connectance 4.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
40
Connectance
0.044
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

1 249 distinct species · 4 164 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 164 obs · 55 cellules
Obs. / cellule
≥ 702
177–701
52–176
5–51
< 5

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

Climate

Mean T°

23,1°C

Annual rain

4 032mm

Warmest m°

27,3°C

Coldest m°

18,9°C

Elevation: 593 m on average (min -7 m, max 1 709 m)

Bioclimatic detailsExpert
Annual mean temp.
23,1°C
Annual rain
4 032mm
Warmest month
27,3°C
Coldest month
18,9°C
Mean alt.
593m
Min
-7m
Max
1 709m
Std. dev.
399m
Köppen-Geiger (dominant)
AfTropical, rainforest(98 %)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

57,5g/kg

Clay

38,8%

Sand

32,4%

Silt

28,8%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,8
Org. C
72,1g/kg
Clay
37,8%
Sand
33,1%
Silt
29,2%
5–15 cm
pH H₂O
4,8
Org. C
56,5g/kg
Clay
38,2%
Sand
32,8%
Silt
29,0%
15–30 cm
pH H₂O
4,9
Org. C
43,8g/kg
Clay
40,6%
Sand
31,3%
Silt
28,1%

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

Land cover

Forest88.6%
Crops2.4%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)8.8%

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

Hydrology11 basins · 3 lakes · 27 rivers

Hydrology metrics for this exact territory

Stream length here

565,7km

Lake surface here

8,00km²

Basins crossed

11

Max stream order

5

Max drainage

4 011km²

Discharge in basins

240,4m³/s

Mean precip.

2 719mm/an

Mean T°

23,6°C

Moisture idx

0,39

Mean runoff

1 479mm/an

Mean elev. (basins)

566m

Rivers / streams (27, ord ≥ 4)

15 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

11,1%

Pesticides

0,6kg/km²

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

Protected areas6

IUCN Ia · 3IUCN II · 1IUCN IV · 1IUCN Not Reported · 1🌊 Marine · 1

Barumun

IUCN IV

Wildlife Reserve

401 km²

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

Sub-administrations12