Ontologia

Commune · TCD

Rachid

Chad

BShArid, steppe, hot(75 %)

Species observed

204

Observations

461

Area

5 092,8km²

Ecological tissue

Sample of 36 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 Rachid : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 3 types (connectance 8.9%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
56
Connectance
0.089
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

204 distinct species · 461 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

461 obs · 47 cellules
Obs. / cellule
≥ 56
36–55
4–35
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°

28,1°C

Annual rain

698mm

Warmest m°

39,8°C

Coldest m°

18,0°C

Elevation: 441 m on average (min 416 m, max 739 m)

Bioclimatic detailsExpert
Annual mean temp.
28,1°C
Annual rain
698mm
Warmest month
39,8°C
Coldest month
18,0°C
Mean alt.
441m
Min
416m
Max
739m
Std. dev.
20m
Köppen-Geiger (dominant)
BShArid, steppe, hot(75 %)Arid

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

Soil & lithology

pH H₂O

6,4

Org. C

8,8g/kg

Clay

31,1%

Sand

39,5%

Silt

29,5%

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

Dominant lithology: suGLiMaggregated to Aboudeïa

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
10,5g/kg
Clay
28,7%
Sand
40,9%
Silt
30,4%
5–15 cm
pH H₂O
6,4
Org. C
9,2g/kg
Clay
30,0%
Sand
40,2%
Silt
29,8%
15–30 cm
pH H₂O
6,4
Org. C
6,7g/kg
Clay
34,5%
Sand
37,2%
Silt
28,2%

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

Land cover

Forest14.7%
Crops6.7%
Built-up0.0%
Bare soil0.3%
Other (grassland, water…)78.4%

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

Hydrology15 basins · 3 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

208,2km

Lake surface here

0,51km²

Basins crossed

15

Max stream order

5

Max drainage

18 836km²

Discharge in basins

43,7m³/s

Mean precip.

784mm/an

Mean T°

28,0°C

Moisture idx

-0,63

Mean runoff

54mm/an

Mean elev. (basins)

445m

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

Human pressure

Pop. density

0hab/km²

Built-up

1,6%

Pesticides

0,1kg/km²

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

Protected areas3

IUCN IV · 1IUCN Not Reported · 1IUCN II · 1

Zakouma

IUCN II

National Park · 1963

3 043 km²

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