Ontologia

Commune · SDN

Wadi Halfa

Sudan

BWhArid, desert, hot(100 %)

Species observed

564

Observations

11 086

Area

85 676,7km²

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 Wadi Halfa : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 6 bulles famille, 22 interactions GloBI documentées sur 2 types (connectance 9.5%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
22
Interactions affichées
22
Connectance
0.095
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

564 distinct species · 11 086 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 086 obs · 48 cellules
Obs. / cellule
≥ 7 433
460–7 432
20–459
6–19
< 6

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

24,0°C

Annual rain

2mm

Warmest m°

37,6°C

Coldest m°

6,1°C

Elevation: 420 m on average (min 171 m, max 1 632 m)

Bioclimatic detailsExpert
Annual mean temp.
24,0°C
Annual rain
2mm
Warmest month
37,6°C
Coldest month
6,1°C
Mean alt.
420m
Min
171m
Max
1 632m
Std. dev.
143m
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

8,1

Org. C

3,2g/kg

Clay

13,9%

Sand

65,5%

Silt

20,7%

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

Dominant lithology: suGLiMaggregated to Wadi Halfa

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
3,6g/kg
Clay
12,8%
Sand
66,4%
Silt
20,8%
5–15 cm
pH H₂O
8,1
Org. C
3,4g/kg
Clay
13,9%
Sand
65,6%
Silt
20,5%
15–30 cm
pH H₂O
8,1
Org. C
2,6g/kg
Clay
14,9%
Sand
64,4%
Silt
20,7%

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

Land cover

Forest0.0%
Crops0.1%
Built-up0.0%
Bare soil99.0%
Other (grassland, water…)0.9%

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

Hydrology159 basins · 3 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

771,6km

Lake surface here

560,86km²

Basins crossed

159

Max stream order

8

Max drainage

2 650 835km²

Discharge in basins

35 502,1m³/s

Mean precip.

3mm/an

Mean T°

24,9°C

Moisture idx

-1,00

Mean runoff

0mm/an

Mean elev. (basins)

419m

Watersheds crossing here

150 more basins

Lakes (3, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,3%

Pesticides

0,0kg/km²

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

Protected areas1

IUCN Not Reported · 1📍 Point sites · 1

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN