District · SDN
Nahr Atbara
Sudan
Species observed
114
Observations
501
Area
7 323,2km²
Ecological tissue
Sample of 33 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).
Indicateurs du tissu écologique
Tissu écologique de Nahr Atbara : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
114 distinct species · 501 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
30,0°C
Annual rain
214mm
Warmest m°
40,9°C
Coldest m°
17,2°C
Elevation: 439 m on average (min 393 m, max 510 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,9
Org. C
5,1g/kg
Clay
47,6%
Sand
17,9%
Silt
34,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology21 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
310,5km
Basins crossed
21
Max stream order
6
Max drainage
112 598km²
Discharge in basins
1 080,0m³/s
Mean precip.
228mm/an
Mean T°
28,9°C
Moisture idx
-0,90
Mean runoff
5mm/an
Mean elev. (basins)
445m
Watersheds crossing here
- Bassin de نهر عطبرةsub-area4 391,9 km²overlap1086.95 km²15%
- Basin #84880sub-area2 053,6 km²overlap1005.95 km²14%
- Bassin de نهر عطبرةsub-area2 295,8 km²overlap903.23 km²12%
- Basin #91490sub-area1 126,7 km²overlap724.86 km²10%
- Basin #84870sub-area1 113,6 km²overlap532.76 km²7%
- Bassin de نهر عطبرةsub-area515,8 km²overlap513.97 km²7%
- Basin #10510sub-area741,1 km²overlap500.14 km²7%
- Bassin de نهر عطبرةsub-area498,8 km²overlap497.04 km²7%
- Bassin de نهر عطبرةsub-area999,9 km²overlap495.25 km²7%
12 more basinssorted by overlap
- Bassin de نهر عطبرةsub-area332 km²overlap330.85 km²5%
- Basin #77330sub-area619,2 km²overlap147.03 km²2%
- Basin #82750sub-area393,3 km²overlap143.39 km²2%
- Bassin de نهر عطبرةsub-area115,6 km²overlap115.17 km²2%
- Basin #91500sub-area992,4 km²overlap110.07 km²2%
- Basin #15610sub-area1 872,6 km²overlap72.33 km²1%
- Basin #83930sub-area2 434,8 km²overlap59.98 km²1%
- Basin #13390sub-area52,3 km²overlap48.40 km²1%
- Basin #13380sub-area775,5 km²overlap16.60 km²0%
- Basin #15600sub-area871,8 km²overlap16.00 km²0%
- Basin #83750sub-area90,2 km²overlap3.17 km²0%
- Basin #82610sub-area319,5 km²overlap0.06 km²0%
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,1nW
Built-up
19,3%
Pesticides
0,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)