Ontologia

District · YEM

Ar Raydah Wa Qusayar

Yemen

BWhArid, desert, hot(100 %)

Species observed

78

Observations

162

Area

3 487,1km²

Ecological tissue

Sample of 3 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 Ar Raydah Wa Qusayar : 3 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

78 distinct species · 162 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

162 obs · 15 cellules
Obs. / cellule
≥ 36
28–35
15–27
5–14
< 5

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

Climate

Mean T°

24,0°C

Annual rain

121mm

Warmest m°

32,5°C

Coldest m°

14,5°C

Elevation: 809 m on average (min -75 m, max 1 604 m)

Bioclimatic detailsExpert
Annual mean temp.
24,0°C
Annual rain
121mm
Warmest month
32,5°C
Coldest month
14,5°C
Mean alt.
809m
Min
-75m
Max
1 604m
Std. dev.
502m
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

13,4g/kg

Clay

15,6%

Sand

44,9%

Silt

39,5%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
16,0g/kg
Clay
14,8%
Sand
45,4%
Silt
39,8%
5–15 cm
pH H₂O
7,9
Org. C
11,8g/kg
Clay
15,1%
Sand
45,4%
Silt
39,5%
15–30 cm
pH H₂O
7,9
Org. C
12,4g/kg
Clay
16,9%
Sand
43,8%
Silt
39,3%

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

Land cover

Forest0.5%
Crops0.5%
Built-up0.1%
Bare soil71.8%
Other (grassland, water…)27.1%

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

Hydrology12 basins · 0 lakes · 7 rivers

Hydrology metrics for this exact territory

Stream length here

231,6km

Basins crossed

12

Max stream order

3

Max drainage

2 040km²

Discharge in basins

0,8m³/s

Mean precip.

92mm/an

Mean T°

22,5°C

Moisture idx

-0,94

Mean runoff

16mm/an

Mean elev. (basins)

790m

Watersheds crossing here

3 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

5,9%

Pesticides

0,0kg/km²

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