Ontologia

Commune · DZA

Hamma

Algeria

BSkArid, steppe, cold(99 %)

Species observed

11

Observations

12

Area

99,6km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 3 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 Hamma : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

11 distinct species · 12 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 obs · 2 cellules
Obs. / cellule
≥ 10
10–9
10–9
10–9
< 10

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

Climate

Mean T°

15,2°C

Annual rain

334mm

Warmest m°

32,8°C

Coldest m°

0,5°C

Elevation: 1 037 m on average (min 762 m, max 1 570 m)

Bioclimatic detailsExpert
Annual mean temp.
15,2°C
Annual rain
334mm
Warmest month
32,8°C
Coldest month
0,5°C
Mean alt.
1 037m
Min
762m
Max
1 570m
Std. dev.
208m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(99 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

22,2g/kg

Clay

23,9%

Sand

42,8%

Silt

33,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
35,2g/kg
Clay
22,5%
Sand
43,6%
Silt
33,9%
5–15 cm
pH H₂O
7,6
Org. C
17,4g/kg
Clay
23,7%
Sand
42,8%
Silt
33,4%
15–30 cm
pH H₂O
7,6
Org. C
14,1g/kg
Clay
25,5%
Sand
42,2%
Silt
32,4%

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

Land cover

Forest10.4%
Crops27.0%
Built-up1.0%
Bare soil8.3%
Other (grassland, water…)53.3%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

10,5km

Basins crossed

3

Max stream order

1

Max drainage

25 882km²

Discharge in basins

0,0m³/s

Mean precip.

297mm/an

Mean T°

15,2°C

Moisture idx

-0,76

Mean runoff

23mm/an

Mean elev. (basins)

786m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

2,2nW

Built-up

99,2%

Pesticides

18,3kg/km²

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