Ontologia

County · IRN

Arak

Iran

DsaCold, dry summer, hot summer(60 %)

Species observed

331

Observations

3 477

Area

6 052,5km²

Ecological tissue

Sample of 19 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 Arak : 11 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 2 types (connectance 27.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
53
Connectance
0.279
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

331 distinct species · 3 477 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 477 obs · 44 cellules
Obs. / cellule
≥ 2 182
99–2 181
20–98
8–19
< 8

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

Climate

Mean T°

12,6°C

Annual rain

340mm

Warmest m°

33,0°C

Coldest m°

-8,5°C

Elevation: 1 860 m on average (min 1 622 m, max 2 738 m)

Bioclimatic detailsExpert
Annual mean temp.
12,6°C
Annual rain
340mm
Warmest month
33,0°C
Coldest month
-8,5°C
Mean alt.
1 860m
Min
1 622m
Max
2 738m
Std. dev.
198m
Köppen-Geiger (dominant)
DsaCold, dry summer, hot summer(60 %)Cold

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

Soil & lithology

pH H₂O

7,7

Org. C

5,4g/kg

Clay

30,8%

Sand

33,5%

Silt

35,7%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,7
Org. C
8,7g/kg
Clay
29,6%
Sand
34,1%
Silt
36,3%
5–15 cm
pH H₂O
7,8
Org. C
2,8g/kg
Clay
30,7%
Sand
33,4%
Silt
36,0%
15–30 cm
pH H₂O
7,8
Org. C
4,8g/kg
Clay
32,1%
Sand
32,9%
Silt
35,0%

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

Land cover

Forest0.4%
Crops38.0%
Built-up0.4%
Bare soil28.1%
Other (grassland, water…)33.1%

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

Hydrology23 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

777,8km

Basins crossed

23

Max stream order

4

Max drainage

15 678km²

Discharge in basins

80,1m³/s

Mean precip.

282mm/an

Mean T°

11,3°C

Moisture idx

-0,78

Max snow

11%

Mean runoff

87mm/an

Mean elev. (basins)

1 896m

Watersheds crossing here

14 more basins

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

Human pressure

Pop. density

1hab/km²

Night light

1,4nW

Built-up

40,2%

Pesticides

2,4kg/km²

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

Protected areas1

IUCN V · 1

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