Ontologia

Department · TCD

Barh Signaka

Chad

BShArid, steppe, hot(99 %)

Species observed

247

Observations

796

Area

8 399,3km²

Ecological tissue

Sample of 28 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 Barh Signaka : 21 espèces reliées par 34 interactions GloBI sur 4 types (connectance 9.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
34
Connectance
0.090
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

247 distinct species · 796 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

796 obs · 35 cellules
Obs. / cellule
≥ 255
62–254
22–61
6–21
< 6

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

608mm

Warmest m°

39,9°C

Coldest m°

16,3°C

Elevation: 466 m on average (min 345 m, max 1 125 m)

Bioclimatic detailsExpert
Annual mean temp.
27,9°C
Annual rain
608mm
Warmest month
39,9°C
Coldest month
16,3°C
Mean alt.
466m
Min
345m
Max
1 125m
Std. dev.
102m
Köppen-Geiger (dominant)
BShArid, steppe, hot(99 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,9

Org. C

8,7g/kg

Clay

32,0%

Sand

35,8%

Silt

32,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
10,3g/kg
Clay
29,7%
Sand
37,4%
Silt
32,9%
5–15 cm
pH H₂O
6,9
Org. C
8,6g/kg
Clay
31,4%
Sand
36,2%
Silt
32,5%
15–30 cm
pH H₂O
7,0
Org. C
7,1g/kg
Clay
35,0%
Sand
33,9%
Silt
31,2%

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

Land cover

Forest11.6%
Crops14.6%
Built-up0.0%
Bare soil0.4%
Other (grassland, water…)73.4%

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

Hydrology27 basins · 0 lakes · 9 rivers

Hydrology metrics for this exact territory

Stream length here

189,2km

Basins crossed

27

Max stream order

4

Max drainage

40 968km²

Discharge in basins

22,4m³/s

Mean precip.

659mm/an

Mean T°

28,7°C

Moisture idx

-0,69

Mean runoff

50mm/an

Mean elev. (basins)

466m

Watersheds crossing here

18 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

3,5%

Pesticides

0,1kg/km²

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

Protected areas2

IUCN Not Reported · 1IUCN IV · 1

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

Sub-administrations5