Ontologia

Commune · DZA

Bellaa

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

17

Observations

27

Area

142,7km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 8 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 Bellaa : 8 espèces reliées par 6 interactions GloBI sur 4 types (connectance 21.4%, filtre Serrano α=0.2).

Espèces affichées
8
Interactions affichées
6
Connectance
0.214
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

17 distinct species · 27 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

27 obs · 4 cellules
Obs. / cellule
≥ 13
13–12
9–12
9–8
< 9

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

Climate

Mean T°

14,4°C

Annual rain

539mm

Warmest m°

31,8°C

Coldest m°

0,4°C

Elevation: 1 045 m on average (min 789 m, max 1 202 m)

Bioclimatic detailsExpert
Annual mean temp.
14,4°C
Annual rain
539mm
Warmest month
31,8°C
Coldest month
0,4°C
Mean alt.
1 045m
Min
789m
Max
1 202m
Std. dev.
65m
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

20,1g/kg

Clay

29,8%

Sand

35,1%

Silt

35,1%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
30,7g/kg
Clay
29,8%
Sand
34,9%
Silt
35,3%
5–15 cm
pH H₂O
7,0
Org. C
16,9g/kg
Clay
29,3%
Sand
35,3%
Silt
35,4%
15–30 cm
pH H₂O
7,0
Org. C
12,6g/kg
Clay
30,2%
Sand
35,2%
Silt
34,6%

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

Land cover

Forest3.4%
Crops45.0%
Built-up0.6%
Bare soil6.3%
Other (grassland, water…)44.6%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

6,8km

Basins crossed

3

Max stream order

2

Max drainage

2 185km²

Discharge in basins

0,6m³/s

Mean precip.

605mm/an

Mean T°

13,8°C

Moisture idx

-0,47

Max snow

1%

Mean runoff

141mm/an

Mean elev. (basins)

863m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,7nW

Built-up

63,8%

Pesticides

17,6kg/km²

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