Ontologia

Governorate · SAU

Al Majmaah

Saudi Arabia

BWhArid, desert, hot(100 %)

Species observed

246

Observations

1 654

Area

24 182,9km²

Ecological tissue

Sample of 24 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 Majmaah : 19 espèces reliées par 29 interactions GloBI sur 2 types (connectance 10.5%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
29
Connectance
0.105
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

246 distinct species · 1 654 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 654 obs · 214 cellules
Obs. / cellule
≥ 139
10–138
3–9
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°

24,9°C

Annual rain

162mm

Warmest m°

41,5°C

Coldest m°

5,8°C

Elevation: 613 m on average (min 397 m, max 888 m)

Bioclimatic detailsExpert
Annual mean temp.
24,9°C
Annual rain
162mm
Warmest month
41,5°C
Coldest month
5,8°C
Mean alt.
613m
Min
397m
Max
888m
Std. dev.
83m
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

7,9

Org. C

2,6g/kg

Clay

24,6%

Sand

41,5%

Silt

33,9%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
2,8g/kg
Clay
23,3%
Sand
42,7%
Silt
34,0%
5–15 cm
pH H₂O
8,0
Org. C
1,8g/kg
Clay
25,1%
Sand
41,1%
Silt
33,8%
15–30 cm
pH H₂O
8,0
Org. C
3,2g/kg
Clay
25,4%
Sand
40,7%
Silt
33,9%

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

Land cover

Forest0.1%
Crops0.3%
Built-up0.1%
Bare soil98.1%
Other (grassland, water…)1.5%

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

Hydrology44 basins · 0 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

2 192,4km

Basins crossed

44

Max stream order

4

Max drainage

4 860km²

Discharge in basins

0,8m³/s

Mean precip.

196mm/an

Mean T°

24,2°C

Moisture idx

-0,90

Mean runoff

13mm/an

Mean elev. (basins)

608m

Watersheds crossing here

35 more basins

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

0,9nW

Built-up

8,7%

Pesticides

2,7kg/km²

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

Protected areas6

IUCN VI · 3IUCN II · 3

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