Ontologia

Chef-Lieu-Wilaya · DZA

Illizi

Algeria

BWhArid, desert, hot(100 %)

Species observed

277

Observations

671

Area

76 017km²

Ecological tissue

Sample of 32 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 Illizi : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 5 types (connectance 7.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
36
Connectance
0.073
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

277 distinct species · 671 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

671 obs · 30 cellules
Obs. / cellule
≥ 138
88–137
17–87
7–16
< 7

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

23,8°C

Annual rain

26mm

Warmest m°

38,8°C

Coldest m°

3,6°C

Elevation: 782 m on average (min 397 m, max 1 691 m)

Bioclimatic detailsExpert
Annual mean temp.
23,8°C
Annual rain
26mm
Warmest month
38,8°C
Coldest month
3,6°C
Mean alt.
782m
Min
397m
Max
1 691m
Std. dev.
306m
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

8,4

Org. C

4,9g/kg

Clay

26,4%

Sand

47,3%

Silt

26,3%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,3
Org. C
6,2g/kg
Clay
25,8%
Sand
47,8%
Silt
26,5%
5–15 cm
pH H₂O
8,4
Org. C
4,9g/kg
Clay
26,4%
Sand
47,5%
Silt
26,1%
15–30 cm
pH H₂O
8,4
Org. C
3,5g/kg
Clay
27,0%
Sand
46,7%
Silt
26,3%

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

Land cover

Forest0.0%
Crops0.1%
Built-up0.0%
Bare soil97.7%
Other (grassland, water…)2.1%

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

Hydrology127 basins · 0 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

4 946,5km

Basins crossed

127

Max stream order

5

Max drainage

24 276km²

Discharge in basins

5,5m³/s

Mean precip.

22mm/an

Mean T°

23,7°C

Moisture idx

-0,99

Mean runoff

2mm/an

Mean elev. (basins)

785m

Watersheds crossing here

118 more basins

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

0,2%

Pesticides

0,0kg/km²

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

Protected areas4

IUCN Not Applicable · 3IUCN Not Reported · 1

Tassili N'Ajjer

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 1986

98 902 km²

Tassili n'Ajjer

IUCN Not Applicable

World Heritage Site (natural or mixed) · 1982

75 390 km²

Vallée d'Iherir

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2001

579 km²

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