Ontologia

Commune-Cotiere · DZA

Oulhaca El Gheraba

Algeria

BShArid, steppe, hot(52 %)

Species observed

39

Observations

49

Area

89,8km²

Ecological tissue

Sample of 23 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 Oulhaca El Gheraba : 21 espèces reliées par 22 interactions GloBI sur 4 types (connectance 8.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
22
Connectance
0.087
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

39 distinct species · 49 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

49 obs · 2 cellules
Obs. / cellule
≥ 28
28–27
28–27
28–27
< 28

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

Climate

Mean T°

18,2°C

Annual rain

373mm

Warmest m°

27,9°C

Coldest m°

9,4°C

Elevation: 144 m on average (min -37 m, max 320 m)

Bioclimatic detailsExpert
Annual mean temp.
18,2°C
Annual rain
373mm
Warmest month
27,9°C
Coldest month
9,4°C
Mean alt.
144m
Min
-37m
Max
320m
Std. dev.
87m
Köppen-Geiger (dominant)
BShArid, steppe, hot(52 %)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

31,6g/kg

Clay

29,4%

Sand

40,3%

Silt

30,3%

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

Dominant lithology: viGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
53,5g/kg
Clay
28,6%
Sand
40,3%
Silt
31,1%
5–15 cm
pH H₂O
7,6
Org. C
22,9g/kg
Clay
29,5%
Sand
39,9%
Silt
30,6%
15–30 cm
pH H₂O
7,6
Org. C
18,4g/kg
Clay
30,1%
Sand
40,8%
Silt
29,1%

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

Land cover

Forest6.4%
Crops31.6%
Built-up1.0%
Bare soil3.3%
Other (grassland, water…)57.8%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

16,5km

Basins crossed

3

Max stream order

5

Max drainage

7 265km²

Discharge in basins

0,9m³/s

Mean precip.

420mm/an

Mean T°

17,4°C

Moisture idx

-0,63

Mean runoff

23mm/an

Mean elev. (basins)

228m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

2,4nW

Built-up

95,6%

Pesticides

23,1kg/km²

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