Ontologia

Commune · DZA

El Hadjar

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

5

Observations

5

Area

63,1km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 2 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 El Hadjar : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
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

5 distinct species · 5 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 obs · 1 cellules
Obs. / cellule
≥ 5
5–4
5–4
5–4
< 5

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

Climate

Mean T°

19,2°C

Annual rain

648mm

Warmest m°

34,6°C

Coldest m°

6,5°C

Elevation: 12 m on average (min 5 m, max 35 m)

Bioclimatic detailsExpert
Annual mean temp.
19,2°C
Annual rain
648mm
Warmest month
34,6°C
Coldest month
6,5°C
Mean alt.
12m
Min
5m
Max
35m
Std. dev.
5m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

7,0

Org. C

28,3g/kg

Clay

34,3%

Sand

27,9%

Silt

37,8%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
43,7g/kg
Clay
32,9%
Sand
28,8%
Silt
38,3%
5–15 cm
pH H₂O
7,0
Org. C
22,0g/kg
Clay
34,6%
Sand
27,4%
Silt
38,0%
15–30 cm
pH H₂O
7,0
Org. C
19,1g/kg
Clay
35,2%
Sand
27,6%
Silt
37,1%

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

Land cover

Forest5.8%
Crops46.5%
Built-up2.6%
Bare soil2.9%
Other (grassland, water…)42.3%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

12,2km

Basins crossed

1

Max stream order

5

Max drainage

6 333km²

Discharge in basins

1,2m³/s

Mean precip.

678mm/an

Mean T°

17,5°C

Moisture idx

-0,45

Max snow

1%

Mean runoff

193mm/an

Mean elev. (basins)

171m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

6,7nW

Built-up

257,8%

Pesticides

18,4kg/km²

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