Ontologia

Commune · IDN

Medan Helvetia

Indonesia

AfTropical, rainforest(100 %)

Species observed

356

Observations

932

Area

13,2km²

Ecological tissue

Sample of 36 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 Medan Helvetia : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 4 types (connectance 5.1%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
34
Connectance
0.051
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

356 distinct species · 932 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

932 obs · 1 cellules
Obs. / cellule
≥ 932
932–931
932–931
932–931
< 932

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

Climate

Mean T°

26,6°C

Annual rain

2 852mm

Warmest m°

30,9°C

Coldest m°

21,5°C

Elevation: 20 m on average (min 16 m, max 24 m)

Bioclimatic detailsExpert
Annual mean temp.
26,6°C
Annual rain
2 852mm
Warmest month
30,9°C
Coldest month
21,5°C
Mean alt.
20m
Min
16m
Max
24m
Std. dev.
2m
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

5,1

Org. C

65,6g/kg

Clay

37,8%

Sand

29,6%

Silt

32,7%

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

Dominant lithology: suGLiMaggregated to Kota Medan

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
79,5g/kg
Clay
35,5%
Sand
31,4%
Silt
33,1%
5–15 cm
pH H₂O
5,1
Org. C
69,8g/kg
Clay
36,4%
Sand
30,1%
Silt
33,5%
15–30 cm
pH H₂O
5,2
Org. C
47,5g/kg
Clay
41,4%
Sand
27,2%
Silt
31,4%

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

Land cover

Forest0.7%
Crops0.5%
Built-up29.5%
Bare soil0.0%
Other (grassland, water…)69.3%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

2,6km

Basins crossed

2

Max stream order

3

Max drainage

400km²

Discharge in basins

0,3m³/s

Mean precip.

2 272mm/an

Mean T°

26,5°C

Moisture idx

0,24

Mean runoff

1 302mm/an

Mean elev. (basins)

79m

Watersheds crossing here

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

Human pressure

Pop. density

115hab/km²

Night light

33,0nW

Built-up

2 949,6%

Pesticides

0,6kg/km²

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

Sub-administrations4