Ontologia

Commune · DZA

Chettia

Algeria

BShArid, steppe, hot(76 %)

Species observed

19

Observations

28

Area

38,8km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 9 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 Chettia : 9 espèces reliées par 5 interactions GloBI sur 3 types (connectance 13.9%, filtre Serrano α=0.2).

Espèces affichées
9
Interactions affichées
5
Connectance
0.139
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

19 distinct species · 28 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

28 obs · 2 cellules
Obs. / cellule
≥ 25
25–24
25–24
25–24
< 25

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

Climate

Mean T°

19,1°C

Annual rain

350mm

Warmest m°

35,4°C

Coldest m°

6,1°C

Elevation: 110 m on average (min 81 m, max 297 m)

Bioclimatic detailsExpert
Annual mean temp.
19,1°C
Annual rain
350mm
Warmest month
35,4°C
Coldest month
6,1°C
Mean alt.
110m
Min
81m
Max
297m
Std. dev.
35m
Köppen-Geiger (dominant)
BShArid, steppe, hot(76 %)Arid

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

Soil & lithology

pH H₂O

7,8

Org. C

15,3g/kg

Clay

34,3%

Sand

25,5%

Silt

40,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
23,0g/kg
Clay
33,4%
Sand
25,8%
Silt
40,7%
5–15 cm
pH H₂O
7,8
Org. C
12,7g/kg
Clay
35,6%
Sand
24,7%
Silt
39,7%
15–30 cm
pH H₂O
7,8
Org. C
10,3g/kg
Clay
33,9%
Sand
26,1%
Silt
40,0%

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

Land cover

Forest6.6%
Crops39.2%
Built-up6.8%
Bare soil2.9%
Other (grassland, water…)44.6%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

15,2km

Basins crossed

1

Max stream order

6

Max drainage

29 424km²

Discharge in basins

1,9m³/s

Mean precip.

456mm/an

Mean T°

17,7°C

Moisture idx

-0,56

Mean runoff

51mm/an

Mean elev. (basins)

287m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

16hab/km²

Night light

11,8nW

Built-up

680,1%

Pesticides

18,6kg/km²

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