Ontologia

Province · dza

Boumerdès

Algeria

CsaTemperate, dry summer, hot summer(100 %)

Species observed

985

Observations

4 890

Area

1 450,6km²

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 Boumerdès : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 5 types (connectance 10.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
63
Connectance
0.106
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

985 distinct species · 4 890 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 890 obs · 45 cellules
Obs. / cellule
≥ 2 067
265–2 066
51–264
26–50
< 26

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

Climate

Mean T°

17,7°C

Annual rain

722mm

Warmest m°

31,1°C

Coldest m°

6,7°C

Elevation: 209 m on average (min -98 m, max 840 m)

Bioclimatic detailsExpert
Annual mean temp.
17,7°C
Annual rain
722mm
Warmest month
31,1°C
Coldest month
6,7°C
Mean alt.
209m
Min
-98m
Max
840m
Std. dev.
172m
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

6,7

Org. C

26,7g/kg

Clay

32,9%

Sand

33,8%

Silt

33,3%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
42,0g/kg
Clay
32,9%
Sand
33,8%
Silt
33,4%
5–15 cm
pH H₂O
6,7
Org. C
21,4g/kg
Clay
32,6%
Sand
33,5%
Silt
33,8%
15–30 cm
pH H₂O
6,7
Org. C
16,7g/kg
Clay
33,1%
Sand
34,1%
Silt
32,8%

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

Land cover

Forest17.9%
Crops16.4%
Built-up3.0%
Bare soil2.1%
Other (grassland, water…)60.6%

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

Hydrology6 basins · 5 lakes · 20 rivers

Hydrology metrics for this exact territory

Stream length here

227,8km

Lake surface here

5,02km²

Basins crossed

6

Max stream order

5

Max drainage

4 133km²

Discharge in basins

16,3m³/s

Mean precip.

807mm/an

Mean T°

17,0°C

Moisture idx

-0,29

Max snow

3%

Mean runoff

226mm/an

Mean elev. (basins)

298m

Watersheds crossing here

Lakes (5, top by area)

Rivers / streams (20, ord ≥ 4)

8 more river segments

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

Human pressure

Pop. density

5hab/km²

Night light

6,9nW

Built-up

297,8%

Pesticides

19,8kg/km²

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

Sub-administrations31