Ontologia

Commune · DZA

Bitam

Algeria

BWhArid, desert, hot(98 %)

Species observed

79

Observations

167

Area

941,8km²

Ecological tissue

Sample of 33 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 Bitam : 28 espèces reliées par 37 interactions GloBI sur 4 types (connectance 7.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
37
Connectance
0.070
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

79 distinct species · 167 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

167 obs · 16 cellules
Obs. / cellule
≥ 61
17–60
10–16
7–9
< 7

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

Climate

Mean T°

19,5°C

Annual rain

211mm

Warmest m°

36,9°C

Coldest m°

3,2°C

Elevation: 474 m on average (min 257 m, max 819 m)

Bioclimatic detailsExpert
Annual mean temp.
19,5°C
Annual rain
211mm
Warmest month
36,9°C
Coldest month
3,2°C
Mean alt.
474m
Min
257m
Max
819m
Std. dev.
83m
Köppen-Geiger (dominant)
BWhArid, desert, hot(98 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

8,3g/kg

Clay

20,6%

Sand

44,8%

Silt

34,5%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
10,3g/kg
Clay
19,4%
Sand
45,8%
Silt
34,9%
5–15 cm
pH H₂O
8,1
Org. C
7,2g/kg
Clay
20,6%
Sand
44,7%
Silt
34,7%
15–30 cm
pH H₂O
8,1
Org. C
7,4g/kg
Clay
22,0%
Sand
44,1%
Silt
34,0%

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

Land cover

Forest0.5%
Crops11.4%
Built-up0.1%
Bare soil63.2%
Other (grassland, water…)24.8%

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

Hydrology4 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

4

Max drainage

2 093km²

Discharge in basins

0,9m³/s

Mean precip.

215mm/an

Mean T°

17,7°C

Moisture idx

-0,84

Mean runoff

29mm/an

Mean elev. (basins)

541m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

10,8%

Pesticides

0,0kg/km²

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

Protected areas2

IUCN Not Applicable · 1IUCN Not Reported · 1

Chott el Hodna

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 2001

3 599 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN