Ontologia

Commune · SDN

Hamadna Allah

Sudan

BShArid, steppe, hot(71 %)

Species observed

120

Observations

300

Area

913,4km²

Ecological tissue

Sample of 35 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 Hamadna Allah : 30 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
34
Connectance
0.057
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

120 distinct species · 300 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

300 obs · 5 cellules
Obs. / cellule
≥ 288
288–287
6–287
4–5
< 4

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

Climate

Mean T°

29,6°C

Annual rain

394mm

Warmest m°

40,8°C

Coldest m°

18,9°C

Elevation: 424 m on average (min 410 m, max 431 m)

Bioclimatic detailsExpert
Annual mean temp.
29,6°C
Annual rain
394mm
Warmest month
40,8°C
Coldest month
18,9°C
Mean alt.
424m
Min
410m
Max
431m
Std. dev.
4m
Köppen-Geiger (dominant)
BShArid, steppe, hot(71 %)Arid

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

Soil & lithology

pH H₂O

7,6

Org. C

6,9g/kg

Clay

52,0%

Sand

14,7%

Silt

33,3%

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

Dominant lithology: suGLiMaggregated to Sennar

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
7,5g/kg
Clay
52,3%
Sand
14,6%
Silt
33,1%
5–15 cm
pH H₂O
7,5
Org. C
6,7g/kg
Clay
52,5%
Sand
14,3%
Silt
33,2%
15–30 cm
pH H₂O
7,7
Org. C
6,4g/kg
Clay
51,2%
Sand
15,1%
Silt
33,7%

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

Land cover

Forest1.8%
Crops51.3%
Built-up0.6%
Bare soil1.1%
Other (grassland, water…)45.2%

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

Hydrology7 basins · 4 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

72,8km

Lake surface here

17,46km²

Basins crossed

7

Max stream order

7

Max drainage

206 033km²

Discharge in basins

827,3m³/s

Mean precip.

455mm/an

Mean T°

28,6°C

Moisture idx

-0,80

Mean runoff

3mm/an

Mean elev. (basins)

428m

Watersheds crossing here

Lakes (4, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

54,7%

Pesticides

2,6kg/km²

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