Ontologia

Governorate · SAU

Ad Dilam

Saudi Arabia

BWhArid, desert, hot(100 %)

Species observed

114

Observations

210

Area

4 043,1km²

Ecological tissue

Sample of 21 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 Ad Dilam : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 24 interactions GloBI sur 2 types (connectance 11.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
24
Connectance
0.114
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

114 distinct species · 210 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

210 obs · 25 cellules
Obs. / cellule
≥ 71
22–70
2–21
2–1
< 2

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

Climate

Mean T°

26,5°C

Annual rain

100mm

Warmest m°

42,1°C

Coldest m°

7,6°C

Elevation: 612 m on average (min 438 m, max 980 m)

Bioclimatic detailsExpert
Annual mean temp.
26,5°C
Annual rain
100mm
Warmest month
42,1°C
Coldest month
7,6°C
Mean alt.
612m
Min
438m
Max
980m
Std. dev.
137m
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

4,4g/kg

Clay

22,3%

Sand

45,7%

Silt

31,9%

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
5,1g/kg
Clay
21,6%
Sand
46,5%
Silt
32,0%
5–15 cm
pH H₂O
8,0
Org. C
3,9g/kg
Clay
22,1%
Sand
45,6%
Silt
32,3%
15–30 cm
pH H₂O
8,1
Org. C
4,3g/kg
Clay
23,3%
Sand
45,1%
Silt
31,6%

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

Land cover

Forest0.7%
Crops3.2%
Built-up0.3%
Bare soil92.5%
Other (grassland, water…)3.3%

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

Hydrology20 basins · 0 lakes · 53 rivers

Hydrology metrics for this exact territory

Stream length here

749,6km

Basins crossed

20

Max stream order

5

Max drainage

12 035km²

Discharge in basins

0,6m³/s

Mean precip.

98mm/an

Mean T°

25,2°C

Moisture idx

-0,95

Mean runoff

36mm/an

Mean elev. (basins)

658m

Watersheds crossing here

11 more basins

Rivers / streams (53, ord ≥ 4)

41 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

1,3nW

Built-up

30,3%

Pesticides

33,9kg/km²

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

Protected areas1

IUCN II · 1

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