Ontologia

Regency · IDN

Mandailing Natal

Indonesia

AfTropical, rainforest(95 %)

Species observed

305

Observations

916

Area

6 537,9km²

Ecological tissue

Sample of 28 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 Mandailing Natal : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
34
Connectance
0.090
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

305 distinct species · 916 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

916 obs · 48 cellules
Obs. / cellule
≥ 222
64–221
12–63
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°

23,6°C

Annual rain

4 672mm

Warmest m°

27,4°C

Coldest m°

20,0°C

Elevation: 487 m on average (min -19 m, max 1 925 m)

Bioclimatic detailsExpert
Annual mean temp.
23,6°C
Annual rain
4 672mm
Warmest month
27,4°C
Coldest month
20,0°C
Mean alt.
487m
Min
-19m
Max
1 925m
Std. dev.
487m
Köppen-Geiger (dominant)
AfTropical, rainforest(95 %)Tropical

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

4,9

Org. C

99,3g/kg

Clay

39,4%

Sand

29,6%

Silt

31,0%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
104,5g/kg
Clay
38,2%
Sand
30,5%
Silt
31,3%
5–15 cm
pH H₂O
4,9
Org. C
79,7g/kg
Clay
39,0%
Sand
29,7%
Silt
31,4%
15–30 cm
pH H₂O
4,9
Org. C
113,7g/kg
Clay
41,0%
Sand
28,6%
Silt
30,4%

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

Land cover

Forest87.6%
Crops2.2%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)10.0%

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

Hydrology23 basins · 5 lakes · 14 rivers

Hydrology metrics for this exact territory

Stream length here

751,2km

Lake surface here

2,04km²

Basins crossed

23

Max stream order

5

Max drainage

4 887km²

Discharge in basins

737,1m³/s

Mean precip.

3 477mm/an

Mean T°

24,2°C

Moisture idx

0,51

Mean runoff

1 598mm/an

Mean elev. (basins)

470m

Watersheds crossing here

14 more basins

Lakes (5, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

12,9%

Pesticides

0,6kg/km²

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

Protected areas4

IUCN VI · 1IUCN II · 1IUCN IV · 1IUCN Not Reported · 1🌊 Marine · 2

Barumun

IUCN IV

Wildlife Reserve

401 km²

Natal KKP-07

IUCN Not Reported

Marine Protected Area · 2019

14 km²

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

Sub-administrations23