Ontologia

Commune · IDN

Arahan

Indonesia

AwTropical, savannah(100 %)

Species observed

20

Observations

36

Area

33,8km²

Ecological tissue

Sample of 5 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 Arahan : 5 espèces reliées par 3 interactions GloBI sur 2 types (connectance 30.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
3
Connectance
0.300
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

20 distinct species · 36 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

36 obs · 1 cellules
Obs. / cellule
≥ 36
36–35
36–35
36–35
< 36

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

Climate

Mean T°

27,8°C

Annual rain

1 785mm

Warmest m°

33,1°C

Coldest m°

23,7°C

Elevation: 2 m on average (min 1 m, max 5 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
1 785mm
Warmest month
33,1°C
Coldest month
23,7°C
Mean alt.
2m
Min
1m
Max
5m
Std. dev.
1m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

5,7

Org. C

56,0g/kg

Clay

39,4%

Sand

28,3%

Silt

32,3%

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

Dominant lithology: smGLiMaggregated to Indramayu

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
64,6g/kg
Clay
37,9%
Sand
29,0%
Silt
33,0%
5–15 cm
pH H₂O
5,7
Org. C
49,5g/kg
Clay
39,3%
Sand
28,2%
Silt
32,5%
15–30 cm
pH H₂O
5,7
Org. C
53,8g/kg
Clay
40,9%
Sand
27,6%
Silt
31,5%

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

Land cover

Forest3.9%
Crops46.0%
Built-up3.3%
Bare soil1.4%
Other (grassland, water…)45.4%

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

Hydrology2 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

8,3km

Basins crossed

2

Max stream order

5

Max drainage

3 692km²

Discharge in basins

3,6m³/s

Mean precip.

2 055mm/an

Mean T°

27,2°C

Moisture idx

0,13

Mean runoff

1 424mm/an

Mean elev. (basins)

28m

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

Human pressure

Pop. density

7hab/km²

Night light

1,4nW

Built-up

328,6%

Pesticides

0,6kg/km²

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

Sub-administrations4