Ontologia

Commune · DZA

Oued Cheham

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

31

Observations

47

Area

97,4km²

Ecological tissue

Sample of 6 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 Cheham : 5 espèces reliées par 4 interactions GloBI sur 2 types (connectance 26.7%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
6
Interactions affichées
4
Connectance
0.267
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

31 distinct species · 47 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

47 obs · 2 cellules
Obs. / cellule
≥ 29
29–28
29–28
29–28
< 29

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

Climate

Mean T°

15,8°C

Annual rain

663mm

Warmest m°

32,4°C

Coldest m°

2,4°C

Elevation: 693 m on average (min 189 m, max 1 162 m)

Bioclimatic detailsExpert
Annual mean temp.
15,8°C
Annual rain
663mm
Warmest month
32,4°C
Coldest month
2,4°C
Mean alt.
693m
Min
189m
Max
1 162m
Std. dev.
217m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

6,8

Org. C

25,0g/kg

Clay

35,0%

Sand

31,0%

Silt

34,1%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
39,7g/kg
Clay
35,4%
Sand
30,3%
Silt
34,3%
5–15 cm
pH H₂O
6,8
Org. C
21,5g/kg
Clay
35,4%
Sand
30,4%
Silt
34,2%
15–30 cm
pH H₂O
6,8
Org. C
13,7g/kg
Clay
34,1%
Sand
32,1%
Silt
33,7%

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

Land cover

Forest17.8%
Crops22.8%
Built-up0.7%
Bare soil4.5%
Other (grassland, water…)54.2%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

5,3km

Basins crossed

2

Max stream order

2

Max drainage

2 579km²

Discharge in basins

0,4m³/s

Mean precip.

693mm/an

Mean T°

14,9°C

Moisture idx

-0,45

Max snow

1%

Mean runoff

142mm/an

Mean elev. (basins)

633m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,1nW

Built-up

66,6%

Pesticides

18,1kg/km²

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