Ontologia

Commune · DZA

Bordj Omar Driss

Algeria

BWhArid, desert, hot(100 %)

Species observed

77

Observations

146

Area

83 028,8km²

Ecological tissue

Sample of 30 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 Bordj Omar Driss : 27 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 24 interactions GloBI sur 5 types (connectance 5.5%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
24
Connectance
0.055
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

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

Species present

77 distinct species · 146 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

146 obs · 27 cellules
Obs. / cellule
≥ 26
20–25
4–19
2–3
< 2

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

Climate

Mean T°

23,7°C

Annual rain

22mm

Warmest m°

40,9°C

Coldest m°

3,6°C

Elevation: 395 m on average (min 220 m, max 796 m)

Bioclimatic detailsExpert
Annual mean temp.
23,7°C
Annual rain
22mm
Warmest month
40,9°C
Coldest month
3,6°C
Mean alt.
395m
Min
220m
Max
796m
Std. dev.
90m
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

4,0g/kg

Clay

30,0%

Sand

48,3%

Silt

21,7%

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
4,8g/kg
Clay
29,6%
Sand
48,5%
Silt
21,9%
5–15 cm
pH H₂O
8,4
Org. C
4,4g/kg
Clay
29,6%
Sand
48,7%
Silt
21,6%
15–30 cm
pH H₂O
8,4
Org. C
2,7g/kg
Clay
30,9%
Sand
47,6%
Silt
21,6%

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

Land cover

Forest0.0%
Crops0.0%
Built-up0.0%
Bare soil99.7%
Other (grassland, water…)0.2%

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

Hydrology134 basins · 0 lakes · 21 rivers

Hydrology metrics for this exact territory

Stream length here

965,0km

Basins crossed

134

Max stream order

6

Max drainage

63 044km²

Discharge in basins

7,1m³/s

Mean precip.

24mm/an

Mean T°

23,4°C

Moisture idx

-0,99

Mean runoff

1mm/an

Mean elev. (basins)

403m

Watersheds crossing here

125 more basins

Rivers / streams (21, ord ≥ 4)

9 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

0,2%

Pesticides

0,0kg/km²

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

Protected areas1

IUCN Not Applicable · 1

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