Ontologia

Commune · DZA

Djaafra

Algeria

CsaTemperate, dry summer, hot summer(86 %)

Species observed

84

Observations

161

Area

94,9km²

Ecological tissue

Sample of 38 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 Djaafra : 33 espèces reliées par 63 interactions GloBI sur 5 types (connectance 9.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
63
Connectance
0.090
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

84 distinct species · 161 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

161 obs · 3 cellules
Obs. / cellule
≥ 131
131–130
131–130
17–130
< 17

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

Climate

Mean T°

15,2°C

Annual rain

521mm

Warmest m°

33,7°C

Coldest m°

0,8°C

Elevation: 830 m on average (min 441 m, max 1 247 m)

Bioclimatic detailsExpert
Annual mean temp.
15,2°C
Annual rain
521mm
Warmest month
33,7°C
Coldest month
0,8°C
Mean alt.
830m
Min
441m
Max
1 247m
Std. dev.
155m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(86 %)Temperate

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

Soil & lithology

pH H₂O

7,2

Org. C

24,8g/kg

Clay

28,0%

Sand

36,3%

Silt

35,7%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
39,7g/kg
Clay
27,2%
Sand
36,4%
Silt
36,4%
5–15 cm
pH H₂O
7,2
Org. C
18,9g/kg
Clay
27,8%
Sand
36,1%
Silt
36,1%
15–30 cm
pH H₂O
7,2
Org. C
15,9g/kg
Clay
29,0%
Sand
36,4%
Silt
34,7%

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

Land cover

Forest18.7%
Crops6.4%
Built-up0.5%
Bare soil2.1%
Other (grassland, water…)72.3%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

9,8km

Basins crossed

2

Max stream order

3

Max drainage

4 298km²

Discharge in basins

2,3m³/s

Mean precip.

584mm/an

Mean T°

15,3°C

Moisture idx

-0,49

Max snow

1%

Mean runoff

149mm/an

Mean elev. (basins)

720m

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

1,5nW

Built-up

45,7%

Pesticides

18,1kg/km²

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