Ontologia

District · SDN

Tokar

Sudan

BWhArid, desert, hot(100 %)

Species observed

405

Observations

2 205

Area

21 573,2km²

Ecological tissue

Sample of 38 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 Tokar : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 4 types (connectance 4.8%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
34
Connectance
0.048
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

405 distinct species · 2 205 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 205 obs · 202 cellules
Obs. / cellule
≥ 182
17–181
4–16
2–3
< 2

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

Climate

Mean T°

27,9°C

Annual rain

128mm

Warmest m°

39,6°C

Coldest m°

17,7°C

Elevation: 384 m on average (min -582 m, max 2 550 m)

Bioclimatic detailsExpert
Annual mean temp.
27,9°C
Annual rain
128mm
Warmest month
39,6°C
Coldest month
17,7°C
Mean alt.
384m
Min
-582m
Max
2 550m
Std. dev.
383m
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

6,5g/kg

Clay

18,5%

Sand

52,4%

Silt

29,1%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
7,3g/kg
Clay
17,6%
Sand
52,8%
Silt
29,6%
5–15 cm
pH H₂O
8,1
Org. C
6,2g/kg
Clay
18,5%
Sand
52,6%
Silt
28,9%
15–30 cm
pH H₂O
8,1
Org. C
6,1g/kg
Clay
19,3%
Sand
51,9%
Silt
28,8%

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

Land cover

Forest0.8%
Crops1.4%
Built-up0.0%
Bare soil72.1%
Other (grassland, water…)25.8%

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

Hydrology42 basins · 11 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

702,2km

Lake surface here

4,48km²

Basins crossed

42

Max stream order

6

Max drainage

63 987km²

Discharge in basins

761,0m³/s

Mean precip.

124mm/an

Mean T°

28,1°C

Moisture idx

-0,93

Mean runoff

48mm/an

Mean elev. (basins)

385m

Watersheds crossing here

33 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,1%

Pesticides

0,1kg/km²

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

Sub-administrations2