Ontologia

Commune · DZA

El Hadjadj

Algeria

CsaTemperate, dry summer, hot summer(86 %)

Species observed

21

Observations

21

Area

99,1km²

Ecological tissue

Sample of 4 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 Hadjadj : 4 espèces reliées par 3 interactions GloBI sur 1 type (connectance 50.0%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
3
Connectance
0.500
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

21 distinct species · 21 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 obs · 1 cellules
Obs. / cellule
≥ 21
21–20
21–20
21–20
< 21

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

Climate

Mean T°

17,8°C

Annual rain

412mm

Warmest m°

36,2°C

Coldest m°

4,0°C

Elevation: 418 m on average (min 208 m, max 761 m)

Bioclimatic detailsExpert
Annual mean temp.
17,8°C
Annual rain
412mm
Warmest month
36,2°C
Coldest month
4,0°C
Mean alt.
418m
Min
208m
Max
761m
Std. dev.
97m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(86 %)Temperate

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

Soil & lithology

pH H₂O

7,7

Org. C

15,7g/kg

Clay

30,9%

Sand

31,4%

Silt

37,8%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
22,8g/kg
Clay
30,5%
Sand
31,2%
Silt
38,4%
5–15 cm
pH H₂O
7,8
Org. C
12,9g/kg
Clay
31,0%
Sand
31,2%
Silt
37,8%
15–30 cm
pH H₂O
7,8
Org. C
11,4g/kg
Clay
31,1%
Sand
31,7%
Silt
37,2%

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

Land cover

Forest8.8%
Crops20.4%
Built-up0.6%
Bare soil7.1%
Other (grassland, water…)63.1%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

11,9km

Basins crossed

2

Max stream order

2

Max drainage

29 424km²

Discharge in basins

0,3m³/s

Mean precip.

482mm/an

Mean T°

15,9°C

Moisture idx

-0,55

Mean runoff

51mm/an

Mean elev. (basins)

664m

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

1,6nW

Built-up

63,0%

Pesticides

17,0kg/km²

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