Ontologia

County · IRN

Nahavand

Iran

DsaCold, dry summer, hot summer(58 %)

Species observed

94

Observations

323

Area

1 746,6km²

Ecological tissue

Sample of 32 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 Nahavand : 27 espèces reliées par 43 interactions GloBI sur 5 types (connectance 8.1%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
43
Connectance
0.081
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

94 distinct species · 323 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

323 obs · 25 cellules
Obs. / cellule
≥ 74
39–73
13–38
6–12
< 6

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

Climate

Mean T°

12,5°C

Annual rain

517mm

Warmest m°

33,4°C

Coldest m°

-8,3°C

Elevation: 1 813 m on average (min 1 379 m, max 2 864 m)

Bioclimatic detailsExpert
Annual mean temp.
12,5°C
Annual rain
517mm
Warmest month
33,4°C
Coldest month
-8,3°C
Mean alt.
1 813m
Min
1 379m
Max
2 864m
Std. dev.
299m
Köppen-Geiger (dominant)
DsaCold, dry summer, hot summer(58 %)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

7,3g/kg

Clay

36,8%

Sand

18,3%

Silt

44,9%

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
12,6g/kg
Clay
35,8%
Sand
18,5%
Silt
45,7%
5–15 cm
pH H₂O
7,7
Org. C
2,9g/kg
Clay
37,0%
Sand
18,0%
Silt
45,0%
15–30 cm
pH H₂O
7,8
Org. C
6,4g/kg
Clay
37,6%
Sand
18,5%
Silt
43,9%

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

Land cover

Forest1.6%
Crops36.6%
Built-up0.4%
Bare soil12.5%
Other (grassland, water…)48.9%

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

Hydrology8 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

276,0km

Basins crossed

8

Max stream order

5

Max drainage

8 661km²

Discharge in basins

73,3m³/s

Mean precip.

396mm/an

Mean T°

11,8°C

Moisture idx

-0,71

Max snow

12%

Mean runoff

214mm/an

Mean elev. (basins)

1 834m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,1nW

Built-up

44,2%

Pesticides

3,5kg/km²

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