Ontologia

District · YEM

Ar Ryashyyah

Yemen

BWhArid, desert, hot(52 %)

Species observed

14

Observations

125

Area

178,5km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

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 Ryashyyah : 2 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

14 distinct species · 125 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

125 obs · 3 cellules
Obs. / cellule
≥ 80
80–79
80–79
44–79
< 44

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

Climate

Mean T°

18,1°C

Annual rain

337mm

Warmest m°

28,1°C

Coldest m°

7,2°C

Elevation: 2 394 m on average (min 1 967 m, max 2 794 m)

Bioclimatic detailsExpert
Annual mean temp.
18,1°C
Annual rain
337mm
Warmest month
28,1°C
Coldest month
7,2°C
Mean alt.
2 394m
Min
1 967m
Max
2 794m
Std. dev.
245m
Köppen-Geiger (dominant)
BWhArid, desert, hot(52 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,8

Org. C

20,4g/kg

Clay

29,1%

Sand

31,5%

Silt

39,4%

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

Dominant lithology: vaGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
28,0g/kg
Clay
28,2%
Sand
33,3%
Silt
38,5%
5–15 cm
pH H₂O
7,8
Org. C
19,1g/kg
Clay
29,1%
Sand
30,6%
Silt
40,4%
15–30 cm
pH H₂O
7,8
Org. C
14,2g/kg
Clay
30,1%
Sand
30,6%
Silt
39,4%

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

Land cover

Forest3.0%
Crops6.7%
Built-up0.1%
Bare soil34.6%
Other (grassland, water…)55.6%

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

Hydrology4 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

4

Max drainage

2 650km²

Discharge in basins

0,8m³/s

Mean precip.

323mm/an

Mean T°

18,0°C

Moisture idx

-0,80

Mean runoff

62mm/an

Mean elev. (basins)

1 964m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

0,0nW

Built-up

13,4%

Pesticides

0,7kg/km²

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