Ontologia

Commune · DZA

Chechar

Algeria

BSkArid, steppe, cold(60 %)

Species observed

25

Observations

26

Area

935,5km²

Ecological tissue

Sample of 4 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 Chechar : 4 espèces reliées par 3 interactions GloBI sur 1 type (connectance 50.0%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
3
Connectance
0.500
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

25 distinct species · 26 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

26 obs · 7 cellules
Obs. / cellule
≥ 20
20–19
1–19
1–0
< 1

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

Climate

Mean T°

17,3°C

Annual rain

312mm

Warmest m°

33,8°C

Coldest m°

2,1°C

Elevation: 842 m on average (min 178 m, max 1 585 m)

Bioclimatic detailsExpert
Annual mean temp.
17,3°C
Annual rain
312mm
Warmest month
33,8°C
Coldest month
2,1°C
Mean alt.
842m
Min
178m
Max
1 585m
Std. dev.
374m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(60 %)Arid

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

Soil & lithology

pH H₂O

7,9

Org. C

12,1g/kg

Clay

22,2%

Sand

46,8%

Silt

30,9%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
14,9g/kg
Clay
21,1%
Sand
47,5%
Silt
31,4%
5–15 cm
pH H₂O
8,0
Org. C
11,2g/kg
Clay
22,8%
Sand
46,3%
Silt
30,9%
15–30 cm
pH H₂O
8,0
Org. C
10,1g/kg
Clay
22,7%
Sand
46,7%
Silt
30,6%

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

Land cover

Forest3.7%
Crops7.1%
Built-up0.1%
Bare soil39.9%
Other (grassland, water…)49.2%

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

Hydrology6 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

6

Max drainage

1 506km²

Discharge in basins

1,6m³/s

Mean precip.

248mm/an

Mean T°

17,1°C

Moisture idx

-0,81

Mean runoff

78mm/an

Mean elev. (basins)

608m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

11,8%

Pesticides

0,0kg/km²

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