Ontologia

District · YEM

Al Marawi'ah

Yemen

BWhArid, desert, hot(100 %)

Species observed

175

Observations

407

Area

745,6km²

Ecological tissue

Sample of 22 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 Marawi'ah : 16 espèces reliées par 36 interactions GloBI sur 3 types (connectance 14.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
36
Connectance
0.142
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

175 distinct species · 407 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

407 obs · 15 cellules
Obs. / cellule
≥ 87
86–86
27–85
18–26
< 18

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

Climate

Mean T°

30,1°C

Annual rain

266mm

Warmest m°

38,3°C

Coldest m°

21,2°C

Elevation: 101 m on average (min 16 m, max 431 m)

Bioclimatic detailsExpert
Annual mean temp.
30,1°C
Annual rain
266mm
Warmest month
38,3°C
Coldest month
21,2°C
Mean alt.
101m
Min
16m
Max
431m
Std. dev.
51m
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

8,3

Org. C

6,5g/kg

Clay

21,4%

Sand

39,7%

Silt

38,9%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,3
Org. C
7,2g/kg
Clay
20,5%
Sand
41,1%
Silt
38,4%
5–15 cm
pH H₂O
8,4
Org. C
6,2g/kg
Clay
20,7%
Sand
40,5%
Silt
38,9%
15–30 cm
pH H₂O
8,3
Org. C
6,0g/kg
Clay
23,1%
Sand
37,5%
Silt
39,4%

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

Land cover

Forest1.8%
Crops47.0%
Built-up0.3%
Bare soil21.9%
Other (grassland, water…)29.1%

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

Hydrology5 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

5

Max drainage

4 738km²

Discharge in basins

0,8m³/s

Mean precip.

118mm/an

Mean T°

27,9°C

Moisture idx

-0,94

Mean runoff

34mm/an

Mean elev. (basins)

350m

Watersheds crossing here

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

Human pressure

Pop. density

3hab/km²

Night light

0,3nW

Built-up

28,1%

Pesticides

0,9kg/km²

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