Ontologia

Commune · SDN

Er Rahad

Sudan

BShArid, steppe, hot(71 %)

Species observed

85

Observations

167

Area

5 982km²

Ecological tissue

Sample of 12 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 Er Rahad : 10 espèces reliées par 10 interactions GloBI sur 3 types (connectance 15.2%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
12
Interactions affichées
10
Connectance
0.151
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

85 distinct species · 167 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

167 obs · 45 cellules
Obs. / cellule
≥ 25
11–24
3–10
2–2
< 2

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

Climate

Mean T°

27,2°C

Annual rain

388mm

Warmest m°

38,6°C

Coldest m°

15,0°C

Elevation: 526 m on average (min 464 m, max 1 260 m)

Bioclimatic detailsExpert
Annual mean temp.
27,2°C
Annual rain
388mm
Warmest month
38,6°C
Coldest month
15,0°C
Mean alt.
526m
Min
464m
Max
1 260m
Std. dev.
82m
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

7,4

Org. C

6,8g/kg

Clay

30,6%

Sand

41,0%

Silt

28,4%

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

Dominant lithology: suGLiMaggregated to Um Rawaba

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
7,8g/kg
Clay
29,5%
Sand
41,9%
Silt
28,6%
5–15 cm
pH H₂O
7,4
Org. C
6,5g/kg
Clay
30,3%
Sand
41,0%
Silt
28,7%
15–30 cm
pH H₂O
7,4
Org. C
6,1g/kg
Clay
32,1%
Sand
40,0%
Silt
27,9%

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

Land cover

Forest4.1%
Crops34.5%
Built-up0.2%
Bare soil1.7%
Other (grassland, water…)59.6%

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

Hydrology20 basins · 1 lakes · 14 rivers

Hydrology metrics for this exact territory

Stream length here

580,4km

Lake surface here

13,40km²

Basins crossed

20

Max stream order

5

Max drainage

23 864km²

Discharge in basins

3,2m³/s

Mean precip.

397mm/an

Mean T°

27,3°C

Moisture idx

-0,80

Mean runoff

15mm/an

Mean elev. (basins)

532m

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

16,1%

Pesticides

1,9kg/km²

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

Protected areas1

IUCN Not Reported · 1

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