Ontologia

Commune · DZA

Sefiane

Algeria

BSkArid, steppe, cold(68 %)

Species observed

16

Observations

16

Area

184,2km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 2 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 Sefiane : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
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

16 distinct species · 16 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 obs · 4 cellules
Obs. / cellule
≥ 9
9–8
5–8
5–4
< 5

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

Climate

Mean T°

17,3°C

Annual rain

311mm

Warmest m°

34,8°C

Coldest m°

1,9°C

Elevation: 770 m on average (min 529 m, max 1 416 m)

Bioclimatic detailsExpert
Annual mean temp.
17,3°C
Annual rain
311mm
Warmest month
34,8°C
Coldest month
1,9°C
Mean alt.
770m
Min
529m
Max
1 416m
Std. dev.
190m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(68 %)Arid

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

Soil & lithology

pH H₂O

7,9

Org. C

9,5g/kg

Clay

21,9%

Sand

47,0%

Silt

31,1%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
11,8g/kg
Clay
19,8%
Sand
48,4%
Silt
31,9%
5–15 cm
pH H₂O
7,9
Org. C
8,7g/kg
Clay
22,7%
Sand
46,5%
Silt
30,8%
15–30 cm
pH H₂O
8,0
Org. C
8,0g/kg
Clay
23,1%
Sand
46,1%
Silt
30,7%

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

Land cover

Forest2.5%
Crops20.4%
Built-up0.6%
Bare soil35.2%
Other (grassland, water…)41.3%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

20,2km

Basins crossed

2

Max stream order

2

Max drainage

2 167km²

Discharge in basins

0,1m³/s

Mean precip.

258mm/an

Mean T°

16,5°C

Moisture idx

-0,80

Mean runoff

22mm/an

Mean elev. (basins)

660m

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

1,4nW

Built-up

64,5%

Pesticides

0,0kg/km²

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