Ontologia

Commune · DZA

El Madher

Algeria

BSkArid, steppe, cold(93 %)

Species observed

58

Observations

83

Area

101,9km²

Ecological tissue

Sample of 18 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 El Madher : 14 espèces reliées par 16 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
16
Connectance
0.105
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

58 distinct species · 83 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

83 obs · 2 cellules
Obs. / cellule
≥ 75
75–74
75–74
75–74
< 75

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

Climate

Mean T°

15,1°C

Annual rain

347mm

Warmest m°

32,7°C

Coldest m°

0,6°C

Elevation: 1 045 m on average (min 841 m, max 1 576 m)

Bioclimatic detailsExpert
Annual mean temp.
15,1°C
Annual rain
347mm
Warmest month
32,7°C
Coldest month
0,6°C
Mean alt.
1 045m
Min
841m
Max
1 576m
Std. dev.
184m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(93 %)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

23,7%

Sand

41,6%

Silt

34,7%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,7
Org. C
21,2g/kg
Clay
22,1%
Sand
42,2%
Silt
35,7%
5–15 cm
pH H₂O
7,8
Org. C
13,5g/kg
Clay
23,1%
Sand
42,0%
Silt
35,0%
15–30 cm
pH H₂O
7,8
Org. C
11,1g/kg
Clay
25,9%
Sand
40,7%
Silt
33,5%

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

Land cover

Forest14.1%
Crops25.3%
Built-up0.7%
Bare soil4.5%
Other (grassland, water…)55.5%

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

Hydrology3 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

3

Max drainage

2 582km²

Discharge in basins

0,0m³/s

Mean precip.

382mm/an

Mean T°

13,9°C

Moisture idx

-0,69

Max snow

1%

Mean runoff

23mm/an

Mean elev. (basins)

958m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

3,2nW

Built-up

71,2%

Pesticides

16,2kg/km²

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