Ontologia

Commune · DZA

Chekfa

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

47

Observations

63

Area

61,5km²

Ecological tissue

Sample of 21 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 Chekfa : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
20
Connectance
0.095
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

47 distinct species · 63 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

63 obs · 1 cellules
Obs. / cellule
≥ 63
63–62
63–62
63–62
< 63

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

Climate

Mean T°

17,4°C

Annual rain

913mm

Warmest m°

30,5°C

Coldest m°

6,3°C

Elevation: 254 m on average (min -6 m, max 676 m)

Bioclimatic detailsExpert
Annual mean temp.
17,4°C
Annual rain
913mm
Warmest month
30,5°C
Coldest month
6,3°C
Mean alt.
254m
Min
-6m
Max
676m
Std. dev.
201m
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

6,7

Org. C

32,0g/kg

Clay

28,9%

Sand

35,8%

Silt

35,3%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
50,9g/kg
Clay
27,5%
Sand
36,2%
Silt
36,3%
5–15 cm
pH H₂O
6,7
Org. C
23,2g/kg
Clay
27,9%
Sand
36,1%
Silt
36,0%
15–30 cm
pH H₂O
6,7
Org. C
22,1g/kg
Clay
31,4%
Sand
35,0%
Silt
33,6%

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

Land cover

Forest26.5%
Crops13.9%
Built-up2.8%
Bare soil3.7%
Other (grassland, water…)53.1%

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

Hydrology2 basins · 1 lakes · 0 rivers

Hydrology metrics for this exact territory

Lake surface here

0,00km²

Basins crossed

2

Max drainage

245km²

Discharge in basins

0,7m³/s

Mean precip.

996mm/an

Mean T°

16,1°C

Moisture idx

-0,07

Max snow

3%

Mean runoff

323mm/an

Mean elev. (basins)

375m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

3hab/km²

Night light

4,0nW

Built-up

282,3%

Pesticides

15,5kg/km²

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