Ontologia

Commune-Cotiere · DZA

Bir El Djir

Algeria

CsaTemperate, dry summer, hot summer(74 %)

Species observed

240

Observations

408

Area

39,5km²

Ecological tissue

Sample of 55 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 Bir El Djir : 43 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 132 interactions GloBI sur 5 types (connectance 8.9%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
55
Interactions affichées
132
Connectance
0.089
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

240 distinct species · 408 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

408 obs · 2 cellules
Obs. / cellule
≥ 269
269–268
269–268
269–268
< 269

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

Climate

Mean T°

18,5°C

Annual rain

336mm

Warmest m°

28,8°C

Coldest m°

9,3°C

Elevation: 163 m on average (min 1 m, max 303 m)

Bioclimatic detailsExpert
Annual mean temp.
18,5°C
Annual rain
336mm
Warmest month
28,8°C
Coldest month
9,3°C
Mean alt.
163m
Min
1m
Max
303m
Std. dev.
41m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(74 %)Temperate

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

Soil & lithology

pH H₂O

7,7

Org. C

14,2g/kg

Clay

28,8%

Sand

33,6%

Silt

37,6%

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

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,6
Org. C
19,9g/kg
Clay
27,8%
Sand
33,9%
Silt
38,3%
5–15 cm
pH H₂O
7,7
Org. C
12,1g/kg
Clay
29,7%
Sand
32,9%
Silt
37,4%
15–30 cm
pH H₂O
7,8
Org. C
10,7g/kg
Clay
28,9%
Sand
34,0%
Silt
37,1%

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

Land cover

Forest2.4%
Crops16.8%
Built-up12.6%
Bare soil3.3%
Other (grassland, water…)64.9%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

2 288km²

Discharge in basins

0,0m³/s

Mean precip.

423mm/an

Mean T°

17,3°C

Moisture idx

-0,57

Mean runoff

12mm/an

Mean elev. (basins)

212m

Watersheds crossing here

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

Human pressure

Pop. density

39hab/km²

Night light

53,4nW

Built-up

1 264,5%

Pesticides

20,5kg/km²

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