Ontologia

Commune · DZA

Hammadi

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

15

Observations

25

Area

26,1km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 7 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 Hammadi : 6 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
7
Interactions affichées
4
Connectance
0.191
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

15 distinct species · 25 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

25 obs · 1 cellules
Obs. / cellule
≥ 25
25–24
25–24
25–24
< 25

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

Climate

Mean T°

18,5°C

Annual rain

652mm

Warmest m°

32,8°C

Coldest m°

7,3°C

Elevation: 40 m on average (min 19 m, max 69 m)

Bioclimatic detailsExpert
Annual mean temp.
18,5°C
Annual rain
652mm
Warmest month
32,8°C
Coldest month
7,3°C
Mean alt.
40m
Min
19m
Max
69m
Std. dev.
11m
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

7,2

Org. C

23,0g/kg

Clay

27,8%

Sand

34,3%

Silt

37,9%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
36,3g/kg
Clay
27,9%
Sand
34,0%
Silt
38,1%
5–15 cm
pH H₂O
7,2
Org. C
17,0g/kg
Clay
27,2%
Sand
34,1%
Silt
38,7%
15–30 cm
pH H₂O
7,2
Org. C
15,8g/kg
Clay
28,3%
Sand
34,8%
Silt
36,9%

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

Land cover

Forest7.8%
Crops27.4%
Built-up10.3%
Bare soil1.9%
Other (grassland, water…)52.7%

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

Hydrology2 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

7,1km

Basins crossed

2

Max stream order

2

Max drainage

1 098km²

Discharge in basins

0,0m³/s

Mean precip.

730mm/an

Mean T°

16,9°C

Moisture idx

-0,36

Max snow

2%

Mean runoff

200mm/an

Mean elev. (basins)

274m

Watersheds crossing here

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

Human pressure

Pop. density

15hab/km²

Night light

21,2nW

Built-up

1 029,8%

Pesticides

20,9kg/km²

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