Ontologia

NA · DJI

Arta

Djibouti

BWhArid, desert, hot(100 %)

Species observed

478

Observations

7 121

Area

1 811,2km²

Ecological tissue

Sample of 28 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 Arta : 25 espèces + 3 bulles famille, 29 interactions GloBI documentées sur 2 types (connectance 7.7%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
28
Interactions affichées
29
Connectance
0.077
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

478 distinct species · 7 121 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 731 obs · 39 cellules
Obs. / cellule
≥ 3 606
444–3 605
103–443
49–102
< 49

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

Climate

Mean T°

27,7°C

Annual rain

230mm

Warmest m°

38,7°C

Coldest m°

18,9°C

Elevation: 461 m on average (min -201 m, max 965 m)

Bioclimatic detailsExpert
Annual mean temp.
27,7°C
Annual rain
230mm
Warmest month
38,7°C
Coldest month
18,9°C
Mean alt.
461m
Min
-201m
Max
965m
Std. dev.
224m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)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

11,1g/kg

Clay

19,6%

Sand

51,8%

Silt

28,6%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
12,5g/kg
Clay
18,2%
Sand
52,7%
Silt
29,0%
5–15 cm
pH H₂O
8,0
Org. C
10,4g/kg
Clay
19,6%
Sand
51,8%
Silt
28,6%
15–30 cm
pH H₂O
8,0
Org. C
10,5g/kg
Clay
20,9%
Sand
50,9%
Silt
28,2%

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

Land cover

Forest0.1%
Crops0.8%
Built-up0.1%
Bare soil81.4%
Other (grassland, water…)17.6%

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

Hydrology8 basins · 0 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

161,9km

Basins crossed

8

Max stream order

2

Max drainage

2 032km²

Discharge in basins

0,4m³/s

Mean precip.

175mm/an

Mean T°

27,9°C

Moisture idx

-0,89

Mean runoff

56mm/an

Mean elev. (basins)

448m

Rivers / streams (13, ord ≥ 4)

1 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

7,7%

Pesticides

0,2kg/km²

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

Protected areas1

IUCN Not Reported · 1

Djalélo

IUCN Not Reported

Terrestrial protected area · 2013

75 km²

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