Ontologia

NA · DJI

Tadjoura

Djibouti

BWhArid, desert, hot(99 %)

Species observed

633

Observations

2 598

Area

1 155,1km²

Ecological tissue

Sample of 30 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 Tadjoura : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 2 types (connectance 7.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
32
Connectance
0.074
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

633 distinct species · 2 598 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 598 obs · 30 cellules
Obs. / cellule
≥ 954
335–953
55–334
33–54
< 33

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

Climate

Mean T°

27,2°C

Annual rain

229mm

Warmest m°

38,6°C

Coldest m°

18,6°C

Elevation: 488 m on average (min -264 m, max 1 626 m)

Bioclimatic detailsExpert
Annual mean temp.
27,2°C
Annual rain
229mm
Warmest month
38,6°C
Coldest month
18,6°C
Mean alt.
488m
Min
-264m
Max
1 626m
Std. dev.
368m
Köppen-Geiger (dominant)
BWhArid, desert, hot(99 %)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

14,6g/kg

Clay

19,1%

Sand

50,5%

Silt

30,4%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
18,7g/kg
Clay
17,8%
Sand
51,4%
Silt
30,7%
5–15 cm
pH H₂O
7,9
Org. C
13,1g/kg
Clay
19,0%
Sand
50,4%
Silt
30,6%
15–30 cm
pH H₂O
7,9
Org. C
11,9g/kg
Clay
20,4%
Sand
49,6%
Silt
30,0%

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

Land cover

Forest0.8%
Crops2.5%
Built-up0.0%
Bare soil55.5%
Other (grassland, water…)41.1%

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

Hydrology5 basins · 0 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

163,7km

Basins crossed

5

Max stream order

2

Max drainage

2 877km²

Discharge in basins

0,3m³/s

Mean precip.

194mm/an

Mean T°

27,7°C

Moisture idx

-0,88

Mean runoff

47mm/an

Mean elev. (basins)

440m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

4,0%

Pesticides

26,8kg/km²

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