Ontologia

Chef-Lieu-Wilaya · DZA

Saida

Algeria

BSkArid, steppe, cold(100 %)

Species observed

113

Observations

214

Area

75,6km²

Ecological tissue

Sample of 40 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 Saida : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 5 types (connectance 6.1%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
50
Connectance
0.061
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

113 distinct species · 214 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

214 obs · 2 cellules
Obs. / cellule
≥ 161
161–160
161–160
161–160
< 161

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

Climate

Mean T°

16,2°C

Annual rain

333mm

Warmest m°

34,2°C

Coldest m°

2,6°C

Elevation: 901 m on average (min 718 m, max 1 149 m)

Bioclimatic detailsExpert
Annual mean temp.
16,2°C
Annual rain
333mm
Warmest month
34,2°C
Coldest month
2,6°C
Mean alt.
901m
Min
718m
Max
1 149m
Std. dev.
90m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(100 %)Arid

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

13,4g/kg

Clay

24,3%

Sand

44,8%

Silt

30,9%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
17,8g/kg
Clay
23,0%
Sand
45,3%
Silt
31,7%
5–15 cm
pH H₂O
7,7
Org. C
11,8g/kg
Clay
23,7%
Sand
44,9%
Silt
31,4%
15–30 cm
pH H₂O
7,7
Org. C
10,4g/kg
Clay
26,2%
Sand
44,1%
Silt
29,6%

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

Land cover

Forest5.3%
Crops31.3%
Built-up4.4%
Bare soil6.2%
Other (grassland, water…)52.8%

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

Hydrology3 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

8,3km

Basins crossed

3

Max stream order

3

Max drainage

2 611km²

Discharge in basins

0,0m³/s

Mean precip.

366mm/an

Mean T°

15,8°C

Moisture idx

-0,68

Mean runoff

10mm/an

Mean elev. (basins)

840m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

15hab/km²

Night light

19,4nW

Built-up

443,0%

Pesticides

17,5kg/km²

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