Ontologia

Commune · DZA

Magra

Algeria

BWhArid, desert, hot(48 %)

Species observed

15

Observations

38

Area

223,7km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 7 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 Magra : 6 espèces reliées par 6 interactions GloBI sur 2 types (connectance 28.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
7
Interactions affichées
6
Connectance
0.286
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

15 distinct species · 38 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

38 obs · 6 cellules
Obs. / cellule
≥ 15
15–14
9–14
7–8
< 7

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

Climate

Mean T°

18,1°C

Annual rain

306mm

Warmest m°

35,8°C

Coldest m°

2,7°C

Elevation: 621 m on average (min 421 m, max 1 190 m)

Bioclimatic detailsExpert
Annual mean temp.
18,1°C
Annual rain
306mm
Warmest month
35,8°C
Coldest month
2,7°C
Mean alt.
621m
Min
421m
Max
1 190m
Std. dev.
122m
Köppen-Geiger (dominant)
BWhArid, desert, hot(48 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

11,4g/kg

Clay

21,4%

Sand

46,2%

Silt

32,4%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
15,1g/kg
Clay
20,1%
Sand
47,1%
Silt
32,8%
5–15 cm
pH H₂O
8,0
Org. C
9,7g/kg
Clay
21,4%
Sand
46,2%
Silt
32,4%
15–30 cm
pH H₂O
8,0
Org. C
9,3g/kg
Clay
22,8%
Sand
45,3%
Silt
31,9%

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

Land cover

Forest1.6%
Crops16.2%
Built-up1.1%
Bare soil36.0%
Other (grassland, water…)45.2%

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

Hydrology1 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

36,7km

Basins crossed

1

Max stream order

2

Max drainage

25 882km²

Discharge in basins

5,8m³/s

Mean precip.

290mm/an

Mean T°

15,3°C

Moisture idx

-0,76

Mean runoff

36mm/an

Mean elev. (basins)

737m

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

Human pressure

Pop. density

2hab/km²

Night light

4,2nW

Built-up

111,6%

Pesticides

8,1kg/km²

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

Protected areas1

IUCN Not Reported · 1

Chott el Hodna

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2001

3 599 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN