Ontologia

Commune · DZA

Lahmar

Algeria

BWhArid, desert, hot(100 %)

Species observed

25

Observations

35

Area

816,5km²

Ecological tissue

Sample of 2 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 Lahmar : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
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 · 35 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

35 obs · 5 cellules
Obs. / cellule
≥ 22
22–21
7–21
3–6
< 3

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

Climate

Mean T°

21,1°C

Annual rain

116mm

Warmest m°

38,7°C

Coldest m°

3,0°C

Elevation: 895 m on average (min 784 m, max 1 330 m)

Bioclimatic detailsExpert
Annual mean temp.
21,1°C
Annual rain
116mm
Warmest month
38,7°C
Coldest month
3,0°C
Mean alt.
895m
Min
784m
Max
1 330m
Std. dev.
91m
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

8,2

Org. C

4,0g/kg

Clay

21,8%

Sand

49,6%

Silt

28,6%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
5,0g/kg
Clay
21,9%
Sand
49,5%
Silt
28,6%
5–15 cm
pH H₂O
8,2
Org. C
3,9g/kg
Clay
21,2%
Sand
50,2%
Silt
28,6%
15–30 cm
pH H₂O
8,2
Org. C
3,2g/kg
Clay
22,2%
Sand
49,2%
Silt
28,7%

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

Land cover

Forest0.1%
Crops0.1%
Built-up0.0%
Bare soil96.0%
Other (grassland, water…)3.7%

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

Hydrology8 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

8

Max drainage

2 848km²

Discharge in basins

1,7m³/s

Mean precip.

125mm/an

Mean T°

19,4°C

Moisture idx

-0,92

Mean runoff

28mm/an

Mean elev. (basins)

933m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

3,7%

Pesticides

0,0kg/km²

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