Ontologia

Commune · DZA

Lahlef

Algeria

CsaTemperate, dry summer, hot summer(57 %)

Species observed

10

Observations

17

Area

74,6km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

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 Lahlef : 8 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 5 interactions GloBI sur 2 types (connectance 17.9%, filtre Serrano α=0.2).

Espèces affichées
8
Interactions affichées
5
Connectance
0.179
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

10 distinct species · 17 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 obs · 3 cellules
Obs. / cellule
≥ 8
8–7
8–7
6–7
< 6

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

Climate

Mean T°

18,9°C

Annual rain

359mm

Warmest m°

36,8°C

Coldest m°

5,2°C

Elevation: 228 m on average (min 116 m, max 475 m)

Bioclimatic detailsExpert
Annual mean temp.
18,9°C
Annual rain
359mm
Warmest month
36,8°C
Coldest month
5,2°C
Mean alt.
228m
Min
116m
Max
475m
Std. dev.
79m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(57 %)Temperate

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

Soil & lithology

pH H₂O

7,6

Org. C

16,1g/kg

Clay

30,4%

Sand

30,0%

Silt

39,7%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
23,4g/kg
Clay
29,9%
Sand
29,8%
Silt
40,4%
5–15 cm
pH H₂O
7,7
Org. C
13,3g/kg
Clay
30,4%
Sand
29,8%
Silt
39,7%
15–30 cm
pH H₂O
7,7
Org. C
11,5g/kg
Clay
30,8%
Sand
30,3%
Silt
39,0%

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

Land cover

Forest0.7%
Crops46.6%
Built-up0.5%
Bare soil5.7%
Other (grassland, water…)46.5%

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

Hydrology2 basins · 1 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

15,7km

Lake surface here

8,70km²

Basins crossed

2

Max stream order

4

Max drainage

35 991km²

Discharge in basins

1,1m³/s

Mean precip.

447mm/an

Mean T°

16,5°C

Moisture idx

-0,57

Mean runoff

40mm/an

Mean elev. (basins)

487m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

1,8nW

Built-up

52,9%

Pesticides

16,8kg/km²

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