Ontologia

Governorate · SAU

Al Hajrah

Saudi Arabia

BWhArid, desert, hot(100 %)

Species observed

69

Observations

91

Area

988,9km²

Ecological tissue

Sample of 25 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 Al Hajrah : 23 espèces reliées par 21 interactions GloBI sur 3 types (connectance 7.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
21
Connectance
0.070
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

69 distinct species · 91 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

91 obs · 18 cellules
Obs. / cellule
≥ 52
8–51
3–7
2–2
< 2

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

Climate

Mean T°

29,1°C

Annual rain

311mm

Warmest m°

38,5°C

Coldest m°

18,0°C

Elevation: 433 m on average (min 122 m, max 2 091 m)

Bioclimatic detailsExpert
Annual mean temp.
29,1°C
Annual rain
311mm
Warmest month
38,5°C
Coldest month
18,0°C
Mean alt.
433m
Min
122m
Max
2 091m
Std. dev.
278m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)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

8,9g/kg

Clay

21,1%

Sand

52,2%

Silt

26,7%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
9,8g/kg
Clay
18,6%
Sand
54,1%
Silt
27,3%
5–15 cm
pH H₂O
8,1
Org. C
8,3g/kg
Clay
21,5%
Sand
52,0%
Silt
26,5%
15–30 cm
pH H₂O
8,0
Org. C
8,5g/kg
Clay
23,0%
Sand
50,7%
Silt
26,3%

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

Land cover

Forest0.9%
Crops2.8%
Built-up0.2%
Bare soil60.8%
Other (grassland, water…)35.4%

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

Hydrology4 basins · 0 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

151,5km

Basins crossed

4

Max stream order

3

Max drainage

1 870km²

Discharge in basins

0,0m³/s

Mean precip.

148mm/an

Mean T°

28,9°C

Moisture idx

-0,92

Mean runoff

34mm/an

Mean elev. (basins)

463m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

1,5nW

Built-up

17,7%

Pesticides

62,8kg/km²

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