Ontologia

Commune · DZA

Zelfana

Algeria

BWhArid, desert, hot(100 %)

Species observed

43

Observations

47

Area

1 922,5km²

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 Zelfana : 8 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 6 interactions GloBI sur 2 types (connectance 21.4%, filtre Serrano α=0.2).

Espèces affichées
8
Interactions affichées
6
Connectance
0.214
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

43 distinct species · 47 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

47 obs · 7 cellules
Obs. / cellule
≥ 18
18–17
8–17
2–7
< 2

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

Climate

Mean T°

22,2°C

Annual rain

69mm

Warmest m°

39,6°C

Coldest m°

4,8°C

Elevation: 344 m on average (min 260 m, max 443 m)

Bioclimatic detailsExpert
Annual mean temp.
22,2°C
Annual rain
69mm
Warmest month
39,6°C
Coldest month
4,8°C
Mean alt.
344m
Min
260m
Max
443m
Std. dev.
36m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid

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

Soil & lithology

pH H₂O

8,3

Org. C

5,5g/kg

Clay

26,0%

Sand

40,3%

Silt

33,7%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,3
Org. C
6,8g/kg
Clay
25,4%
Sand
40,9%
Silt
33,6%
5–15 cm
pH H₂O
8,3
Org. C
5,8g/kg
Clay
25,9%
Sand
40,8%
Silt
33,3%
15–30 cm
pH H₂O
8,3
Org. C
4,0g/kg
Clay
26,6%
Sand
39,2%
Silt
34,2%

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

Land cover

Forest0.2%
Crops0.3%
Built-up0.1%
Bare soil98.5%
Other (grassland, water…)1.0%

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

Hydrology7 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

169,5km

Basins crossed

7

Max stream order

5

Max drainage

6 103km²

Discharge in basins

1,5m³/s

Mean precip.

61mm/an

Mean T°

21,3°C

Moisture idx

-0,96

Mean runoff

21mm/an

Mean elev. (basins)

373m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

1,1nW

Built-up

4,5%

Pesticides

0,0kg/km²

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