Ontologia

Chef-Lieu-Wilaya · DZA

Bechar

Algeria

BWhArid, desert, hot(99 %)

Species observed

170

Observations

293

Area

5 024,3km²

Ecological tissue

Sample of 27 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 Bechar : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 2 types (connectance 12.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
45
Connectance
0.128
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

170 distinct species · 293 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

293 obs · 48 cellules
Obs. / cellule
≥ 68
14–67
6–13
2–5
< 2

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

Climate

Mean T°

21,5°C

Annual rain

105mm

Warmest m°

39,2°C

Coldest m°

3,2°C

Elevation: 825 m on average (min 634 m, max 1 821 m)

Bioclimatic detailsExpert
Annual mean temp.
21,5°C
Annual rain
105mm
Warmest month
39,2°C
Coldest month
3,2°C
Mean alt.
825m
Min
634m
Max
1 821m
Std. dev.
153m
Köppen-Geiger (dominant)
BWhArid, desert, hot(99 %)Arid

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

Soil & lithology

pH H₂O

8,2

Org. C

5,6g/kg

Clay

22,9%

Sand

46,9%

Silt

30,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,2
Org. C
7,4g/kg
Clay
22,5%
Sand
47,3%
Silt
30,3%
5–15 cm
pH H₂O
8,2
Org. C
5,2g/kg
Clay
22,6%
Sand
47,3%
Silt
30,1%
15–30 cm
pH H₂O
8,2
Org. C
4,0g/kg
Clay
23,6%
Sand
46,2%
Silt
30,2%

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

Land cover

Forest0.1%
Crops0.1%
Built-up0.2%
Bare soil95.6%
Other (grassland, water…)4.0%

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

Hydrology13 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

256,4km

Basins crossed

13

Max stream order

5

Max drainage

10 748km²

Discharge in basins

6,6m³/s

Mean precip.

101mm/an

Mean T°

20,4°C

Moisture idx

-0,94

Mean runoff

25mm/an

Mean elev. (basins)

789m

Watersheds crossing here

4 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,7nW

Built-up

17,0%

Pesticides

0,0kg/km²

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