Ontologia

Commune · DZA

El Ach

Algeria

BSkArid, steppe, cold(92 %)

Species observed

50

Observations

124

Area

377,7km²

Ecological tissue

Sample of 20 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 El Ach : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 14 interactions GloBI sur 2 types (connectance 7.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
14
Connectance
0.074
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

50 distinct species · 124 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

124 obs · 9 cellules
Obs. / cellule
≥ 56
56–55
18–55
4–17
< 4

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

Climate

Mean T°

16,3°C

Annual rain

374mm

Warmest m°

34,8°C

Coldest m°

1,6°C

Elevation: 857 m on average (min 552 m, max 1 721 m)

Bioclimatic detailsExpert
Annual mean temp.
16,3°C
Annual rain
374mm
Warmest month
34,8°C
Coldest month
1,6°C
Mean alt.
857m
Min
552m
Max
1 721m
Std. dev.
181m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(92 %)Arid

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

Soil & lithology

pH H₂O

7,8

Org. C

13,6g/kg

Clay

24,2%

Sand

41,8%

Silt

34,0%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,7
Org. C
18,9g/kg
Clay
23,7%
Sand
41,9%
Silt
34,4%
5–15 cm
pH H₂O
7,8
Org. C
11,9g/kg
Clay
23,6%
Sand
42,3%
Silt
34,2%
15–30 cm
pH H₂O
7,9
Org. C
10,0g/kg
Clay
25,3%
Sand
41,4%
Silt
33,3%

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

Land cover

Forest5.6%
Crops8.2%
Built-up0.3%
Bare soil24.1%
Other (grassland, water…)61.8%

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

Hydrology4 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

17,9km

Basins crossed

4

Max stream order

4

Max drainage

11 638km²

Discharge in basins

1,8m³/s

Mean precip.

286mm/an

Mean T°

15,3°C

Moisture idx

-0,76

Max snow

1%

Mean runoff

68mm/an

Mean elev. (basins)

686m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

1,2nW

Built-up

33,8%

Pesticides

3,7kg/km²

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