Ontologia

Commune · DZA

Oued El Ma

Algeria

BSkArid, steppe, cold(94 %)

Species observed

55

Observations

100

Area

196,1km²

Ecological tissue

Sample of 15 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 Oued El Ma : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 10 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
15
Interactions affichées
10
Connectance
0.095
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

55 distinct species · 100 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

100 obs · 5 cellules
Obs. / cellule
≥ 78
78–77
12–77
4–11
< 4

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

Climate

Mean T°

13,7°C

Annual rain

320mm

Warmest m°

31,4°C

Coldest m°

-0,8°C

Elevation: 1 235 m on average (min 908 m, max 1 840 m)

Bioclimatic detailsExpert
Annual mean temp.
13,7°C
Annual rain
320mm
Warmest month
31,4°C
Coldest month
-0,8°C
Mean alt.
1 235m
Min
908m
Max
1 840m
Std. dev.
203m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(94 %)Arid

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

16,7g/kg

Clay

23,5%

Sand

41,7%

Silt

34,8%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
23,2g/kg
Clay
22,3%
Sand
42,2%
Silt
35,5%
5–15 cm
pH H₂O
7,7
Org. C
14,1g/kg
Clay
23,0%
Sand
41,8%
Silt
35,2%
15–30 cm
pH H₂O
7,7
Org. C
12,9g/kg
Clay
25,1%
Sand
41,2%
Silt
33,7%

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

Land cover

Forest15.5%
Crops21.3%
Built-up0.5%
Bare soil4.3%
Other (grassland, water…)58.4%

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.

375mm/an

Mean T°

13,5°C

Moisture idx

-0,69

Max snow

1%

Mean runoff

16mm/an

Mean elev. (basins)

1 083m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,6nW

Built-up

48,8%

Pesticides

0,3kg/km²

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

Protected areas2

IUCN Not Applicable · 1IUCN II · 1

Belezma

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 2015

660 km²

Belezma

IUCN II

National Park · 1984

272 km²

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