Ontologia

District · YEM

Iyal Surayh

Yemen

BWkArid, desert, cold(65 %)

Species observed

21

Observations

31

Area

236,6km²

Ecological tissue

Sample of 6 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 Iyal Surayh : 4 espèces reliées par 7 interactions GloBI sur 3 types (connectance 46.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
6
Interactions affichées
7
Connectance
0.467
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

21 distinct species · 31 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 obs · 5 cellules
Obs. / cellule
≥ 14
14–13
12–13
3–11
< 3

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

Climate

Mean T°

17,5°C

Annual rain

385mm

Warmest m°

26,1°C

Coldest m°

8,1°C

Elevation: 2 374 m on average (min 1 531 m, max 2 749 m)

Bioclimatic detailsExpert
Annual mean temp.
17,5°C
Annual rain
385mm
Warmest month
26,1°C
Coldest month
8,1°C
Mean alt.
2 374m
Min
1 531m
Max
2 749m
Std. dev.
248m
Köppen-Geiger (dominant)
BWkArid, desert, cold(65 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

12,6g/kg

Clay

27,8%

Sand

32,1%

Silt

40,1%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
15,2g/kg
Clay
25,6%
Sand
33,7%
Silt
40,7%
5–15 cm
pH H₂O
8,0
Org. C
11,7g/kg
Clay
27,7%
Sand
32,1%
Silt
40,2%
15–30 cm
pH H₂O
8,0
Org. C
11,1g/kg
Clay
30,2%
Sand
30,5%
Silt
39,4%

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

Land cover

Forest5.7%
Crops10.5%
Built-up0.1%
Bare soil27.8%
Other (grassland, water…)55.8%

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

Hydrology3 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

3

Max drainage

2 354km²

Discharge in basins

0,1m³/s

Mean precip.

250mm/an

Mean T°

16,4°C

Moisture idx

-0,84

Mean runoff

13mm/an

Mean elev. (basins)

2 255m

Watersheds crossing here

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

Human pressure

Pop. density

3hab/km²

Night light

0,2nW

Built-up

14,2%

Pesticides

0,6kg/km²

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