NA · DJI
Randa
Djibouti
Species observed
253
Observations
432
Area
1 687,8km²
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).
Indicateurs du tissu écologique
Tissu écologique de Randa : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 2 types (connectance 7.9%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
253 distinct species · 432 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,3°C
Annual rain
249mm
Warmest m°
36,8°C
Coldest m°
16,2°C
Elevation: 883 m on average (min -113 m, max 1 590 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
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
15,7g/kg
Clay
21,6%
Sand
46,6%
Silt
31,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: vbGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 0 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
201,1km
Basins crossed
9
Max stream order
3
Max drainage
2 877km²
Discharge in basins
0,1m³/s
Mean precip.
186mm/an
Mean T°
27,5°C
Moisture idx
-0,89
Mean runoff
48mm/an
Mean elev. (basins)
505m
Watersheds crossing here
- Bassin de Bolli بليsub-area2 379,7 km²overlap380.18 km²23%
- Bassin de Oued Welmasub-area1 842,5 km²overlap362.36 km²21%
- Bassin de تغار Sadaisub-area1 047 km²overlap275.50 km²16%
- Bassin de Essalou ويماsub-area1 457,1 km²overlap236.31 km²14%
- Bassin de Oued Magalé وادي ماغاليsub-area2 032,4 km²overlap199.65 km²12%
- Basin #44960sub-area163,8 km²overlap118.99 km²7%
- Basin #51280sub-area1 016,2 km²overlap107.27 km²6%
- Basin #50060sub-area214,4 km²overlap7.77 km²0%
- Bassin de Doubiésub-area260,5 km²overlap0.01 km²0%
Rivers / streams (13, ord ≥ 4)
- Bolli بليord 4len here40.05 km55%total73 km
- Wéimaord 3len here23.93 km42%total58 km
- Essalou ويماord 2len here21.52 km27%total81 km
- Oued Magalé وادي ماغاليord 2len here17.51 km35%total50 km
- Gabon غابونord 2len here15.23 km22%total70 km
- Aïboli وادي أيبوليord 2len here14.40 km38%total38 km
- Piste As Dora-Adoïla مسار أس درة - أدئلاord 1len here13.83 km100%total14 km
- Malaïord 2len here12.72 km29%total45 km
- Piste Assa Gueyla - Guirroriord 2len here12.17 km100%total12 km
- Souboultouord 1len here10.29 km100%total10 km
- Piste Adaïlou - Gaoura مسار أدائلو - غاؤراord 1len here7.61 km100%total8 km
- Piste de Garba Nabaord 1len here6.59 km100%total7 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
1,7%
Pesticides
1,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)