Ontologia

District · YEM

Sa'adah

Yemen

BWhArid, desert, hot(100 %)

Species observed

6

Observations

17

Area

27,1km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 2 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 Sa'adah : 1 espèces reliées par 2 interactions GloBI sur 2 types (connectance 200.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
2
Interactions affichées
2
Connectance
2.000
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

6 distinct species · 17 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 obs · 1 cellules
Obs. / cellule
≥ 17
17–16
17–16
17–16
< 17

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

Climate

Mean T°

20,2°C

Annual rain

319mm

Warmest m°

30,5°C

Coldest m°

8,4°C

Elevation: 1 912 m on average (min 1 852 m, max 2 031 m)

Bioclimatic detailsExpert
Annual mean temp.
20,2°C
Annual rain
319mm
Warmest month
30,5°C
Coldest month
8,4°C
Mean alt.
1 912m
Min
1 852m
Max
2 031m
Std. dev.
46m
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

8,6

Org. C

6,3g/kg

Clay

24,1%

Sand

44,8%

Silt

31,1%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,5
Org. C
6,4g/kg
Clay
23,0%
Sand
45,6%
Silt
31,4%
5–15 cm
pH H₂O
8,6
Org. C
5,8g/kg
Clay
22,9%
Sand
46,2%
Silt
30,9%
15–30 cm
pH H₂O
8,6
Org. C
6,8g/kg
Clay
26,5%
Sand
42,5%
Silt
31,0%

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

Land cover

Forest2.5%
Crops14.5%
Built-up3.1%
Bare soil50.1%
Other (grassland, water…)29.9%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

6,6km

Basins crossed

1

Max stream order

4

Max drainage

1 873km²

Discharge in basins

0,0m³/s

Mean precip.

189mm/an

Mean T°

18,8°C

Moisture idx

-0,89

Mean runoff

15mm/an

Mean elev. (basins)

1 959m

Watersheds crossing here

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

Human pressure

Pop. density

30hab/km²

Night light

3,3nW

Built-up

308,0%

Pesticides

0,6kg/km²

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