Ontologia

Governorate · SAU

Al Ahsa

Saudi Arabia

BWhArid, desert, hot(100 %)

Species observed

1 111

Observations

25 943

Area

241 179,3km²

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 Ahsa : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 2 types (connectance 10.3%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
31
Connectance
0.103
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

1 111 distinct species · 25 943 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

25 943 obs · 72 cellules
Obs. / cellule
≥ 20 996
52–20 995
5–51
2–4
< 2

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

27,5°C

Annual rain

58mm

Warmest m°

44,0°C

Coldest m°

8,7°C

Elevation: 256 m on average (min -20 m, max 567 m)

Bioclimatic detailsExpert
Annual mean temp.
27,5°C
Annual rain
58mm
Warmest month
44,0°C
Coldest month
8,7°C
Mean alt.
256m
Min
-20m
Max
567m
Std. dev.
88m
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

8,1

Org. C

4,1g/kg

Clay

17,0%

Sand

49,1%

Silt

34,0%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
4,4g/kg
Clay
16,7%
Sand
49,8%
Silt
33,6%
5–15 cm
pH H₂O
8,1
Org. C
4,1g/kg
Clay
16,9%
Sand
48,8%
Silt
34,2%
15–30 cm
pH H₂O
8,1
Org. C
3,7g/kg
Clay
17,2%
Sand
48,7%
Silt
34,1%

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

Land cover

Forest0.0%
Crops0.3%
Built-up0.0%
Bare soil99.2%
Other (grassland, water…)0.5%

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

Hydrology439 basins · 5 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

2 316,5km

Lake surface here

6,57km²

Basins crossed

439

Max stream order

5

Max drainage

237 161km²

Discharge in basins

713,9m³/s

Mean precip.

59mm/an

Mean T°

26,8°C

Moisture idx

-0,97

Mean runoff

6mm/an

Mean elev. (basins)

260m

Watersheds crossing here

430 more basins

Lakes (5, top by area)

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

3,2%

Pesticides

37,6kg/km²

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

Protected areas2

IUCN VI · 1IUCN Not Reported · 1

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