Ontologia

District · YEM

Dawran Aness

Yemen

BWhArid, desert, hot(64 %)

Species observed

165

Observations

203

Area

1 006,9km²

Ecological tissue

Sample of 27 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 Dawran Aness : 26 espèces reliées par 18 interactions GloBI sur 5 types (connectance 5.1%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
18
Connectance
0.051
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

165 distinct species · 203 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

203 obs · 14 cellules
Obs. / cellule
≥ 100
22–99
15–21
9–14
< 9

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

Climate

Mean T°

19,4°C

Annual rain

490mm

Warmest m°

28,3°C

Coldest m°

9,8°C

Elevation: 1 950 m on average (min 1 123 m, max 2 810 m)

Bioclimatic detailsExpert
Annual mean temp.
19,4°C
Annual rain
490mm
Warmest month
28,3°C
Coldest month
9,8°C
Mean alt.
1 950m
Min
1 123m
Max
2 810m
Std. dev.
409m
Köppen-Geiger (dominant)
BWhArid, desert, hot(64 %)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

15,8g/kg

Clay

29,0%

Sand

32,4%

Silt

38,6%

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
19,6g/kg
Clay
26,8%
Sand
34,4%
Silt
38,8%
5–15 cm
pH H₂O
7,8
Org. C
14,2g/kg
Clay
28,4%
Sand
32,6%
Silt
39,0%
15–30 cm
pH H₂O
7,8
Org. C
13,6g/kg
Clay
31,9%
Sand
30,1%
Silt
37,9%

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

Land cover

Forest5.6%
Crops12.5%
Built-up0.0%
Bare soil10.5%
Other (grassland, water…)71.3%

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

Hydrology8 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

8

Max drainage

2 434km²

Discharge in basins

1,4m³/s

Mean precip.

312mm/an

Mean T°

18,8°C

Moisture idx

-0,82

Mean runoff

32mm/an

Mean elev. (basins)

1 955m

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

2,7%

Pesticides

0,5kg/km²

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