Ontologia

County · IRN

Birjand

Iran

BSkArid, steppe, cold(51 %)

Species observed

250

Observations

527

Area

15 738,4km²

Ecological tissue

Sample of 37 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 Birjand : 25 espèces reliées par 75 interactions GloBI sur 5 types (connectance 11.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
75
Connectance
0.113
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

250 distinct species · 527 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

527 obs · 73 cellules
Obs. / cellule
≥ 78
15–77
6–14
3–5
< 3

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

Climate

Mean T°

16,2°C

Annual rain

196mm

Warmest m°

33,8°C

Coldest m°

-2,1°C

Elevation: 1 244 m on average (min 594 m, max 2 595 m)

Bioclimatic detailsExpert
Annual mean temp.
16,2°C
Annual rain
196mm
Warmest month
33,8°C
Coldest month
-2,1°C
Mean alt.
1 244m
Min
594m
Max
2 595m
Std. dev.
428m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(51 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

1,5g/kg

Clay

20,4%

Sand

48,9%

Silt

30,7%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
2,7g/kg
Clay
20,2%
Sand
48,8%
Silt
31,0%
5–15 cm
pH H₂O
8,0
Org. C
0,6g/kg
Clay
20,3%
Sand
48,8%
Silt
30,9%
15–30 cm
pH H₂O
8,0
Org. C
1,1g/kg
Clay
20,8%
Sand
49,1%
Silt
30,2%

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

Land cover

Forest0.0%
Crops3.5%
Built-up0.1%
Bare soil87.9%
Other (grassland, water…)8.5%

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

Hydrology44 basins · 0 lakes · 9 rivers

Hydrology metrics for this exact territory

Stream length here

715,1km

Basins crossed

44

Max stream order

5

Max drainage

27 795km²

Discharge in basins

46,8m³/s

Mean precip.

159mm/an

Mean T°

16,7°C

Moisture idx

-0,90

Max snow

3%

Mean runoff

31mm/an

Mean elev. (basins)

1 258m

Watersheds crossing here

35 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

5,4%

Pesticides

1,1kg/km²

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