Ontologia

Commune · DZA

Hasnaoua

Algeria

BSkArid, steppe, cold(74 %)

Species observed

31

Observations

92

Area

124,1km²

Ecological tissue

Sample of 11 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 Hasnaoua : 9 espèces reliées par 7 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
11
Interactions affichées
7
Connectance
0.127
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

31 distinct species · 92 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

92 obs · 4 cellules
Obs. / cellule
≥ 50
50–49
27–49
27–26
< 27

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

Climate

Mean T°

15,0°C

Annual rain

430mm

Warmest m°

33,4°C

Coldest m°

0,8°C

Elevation: 926 m on average (min 756 m, max 1 308 m)

Bioclimatic detailsExpert
Annual mean temp.
15,0°C
Annual rain
430mm
Warmest month
33,4°C
Coldest month
0,8°C
Mean alt.
926m
Min
756m
Max
1 308m
Std. dev.
114m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(74 %)Arid

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

Soil & lithology

pH H₂O

7,6

Org. C

19,7g/kg

Clay

26,3%

Sand

38,6%

Silt

35,2%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
30,4g/kg
Clay
25,1%
Sand
39,0%
Silt
35,9%
5–15 cm
pH H₂O
7,7
Org. C
15,8g/kg
Clay
25,4%
Sand
38,8%
Silt
35,9%
15–30 cm
pH H₂O
7,7
Org. C
12,7g/kg
Clay
28,2%
Sand
38,0%
Silt
33,8%

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

Land cover

Forest3.1%
Crops35.0%
Built-up0.9%
Bare soil7.3%
Other (grassland, water…)53.7%

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

Hydrology2 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

25,6km

Basins crossed

2

Max stream order

3

Max drainage

936km²

Discharge in basins

0,5m³/s

Mean precip.

514mm/an

Mean T°

14,3°C

Moisture idx

-0,56

Max snow

1%

Mean runoff

122mm/an

Mean elev. (basins)

913m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

2,7nW

Built-up

90,9%

Pesticides

6,7kg/km²

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