Ontologia

District · SDN

Atbara

Sudan

BWhArid, desert, hot(100 %)

Species observed

87

Observations

572

Area

19 202,6km²

Ecological tissue

Sample of 23 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 Atbara : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
17
Connectance
0.067
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

87 distinct species · 572 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

572 obs · 190 cellules
Obs. / cellule
≥ 42
5–41
2–4
1–1
< 1

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

Climate

Mean T°

30,2°C

Annual rain

64mm

Warmest m°

41,1°C

Coldest m°

15,5°C

Elevation: 382 m on average (min 345 m, max 504 m)

Bioclimatic detailsExpert
Annual mean temp.
30,2°C
Annual rain
64mm
Warmest month
41,1°C
Coldest month
15,5°C
Mean alt.
382m
Min
345m
Max
504m
Std. dev.
14m
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

8,0

Org. C

3,9g/kg

Clay

28,4%

Sand

42,2%

Silt

29,4%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
4,9g/kg
Clay
27,8%
Sand
42,4%
Silt
29,8%
5–15 cm
pH H₂O
8,0
Org. C
3,8g/kg
Clay
28,2%
Sand
42,5%
Silt
29,2%
15–30 cm
pH H₂O
8,0
Org. C
3,1g/kg
Clay
29,2%
Sand
41,7%
Silt
29,1%

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

Land cover

Forest0.5%
Crops3.0%
Built-up0.1%
Bare soil92.6%
Other (grassland, water…)3.7%

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

Hydrology37 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

540,1km

Basins crossed

37

Max stream order

8

Max drainage

2 251 430km²

Discharge in basins

5 066,4m³/s

Mean precip.

97mm/an

Mean T°

29,3°C

Moisture idx

-0,96

Mean runoff

21mm/an

Mean elev. (basins)

389m

Watersheds crossing here

28 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

10,5%

Pesticides

0,0kg/km²

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

Sub-administrations2