Ontologia

Commune · DZA

Oued Chaaba

Algeria

BSkArid, steppe, cold(88 %)

Species observed

321

Observations

653

Area

247,5km²

Ecological tissue

Sample of 34 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 Chaaba : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 5 types (connectance 9.2%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
68
Connectance
0.092
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

321 distinct species · 653 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

653 obs · 7 cellules
Obs. / cellule
≥ 323
323–322
128–322
21–127
< 21

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

Climate

Mean T°

13,5°C

Annual rain

373mm

Warmest m°

31,2°C

Coldest m°

-1,1°C

Elevation: 1 287 m on average (min 1 004 m, max 1 902 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
373mm
Warmest month
31,2°C
Coldest month
-1,1°C
Mean alt.
1 287m
Min
1 004m
Max
1 902m
Std. dev.
197m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(88 %)Arid

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

Soil & lithology

pH H₂O

7,5

Org. C

25,0g/kg

Clay

25,2%

Sand

42,1%

Silt

32,7%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,4
Org. C
35,4g/kg
Clay
23,3%
Sand
43,2%
Silt
33,5%
5–15 cm
pH H₂O
7,6
Org. C
18,4g/kg
Clay
25,3%
Sand
41,7%
Silt
33,0%
15–30 cm
pH H₂O
7,6
Org. C
21,1g/kg
Clay
27,0%
Sand
41,2%
Silt
31,7%

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

Land cover

Forest13.5%
Crops16.8%
Built-up0.6%
Bare soil7.2%
Other (grassland, water…)61.8%

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

Hydrology5 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

8,5km

Basins crossed

5

Max stream order

1

Max drainage

2 582km²

Discharge in basins

0,0m³/s

Mean precip.

345mm/an

Mean T°

13,9°C

Moisture idx

-0,73

Max snow

2%

Mean runoff

14mm/an

Mean elev. (basins)

1 063m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

4,0nW

Built-up

61,2%

Pesticides

0,0kg/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