Ontologia

Subdivision · EGY

Helwan

Egypt

BWhArid, desert, hot(100 %)

Species observed

58

Observations

83

Area

68km²

Ecological tissue

Sample of 19 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 Helwan : 17 espèces reliées par 19 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
19
Connectance
0.111
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

58 distinct species · 83 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

83 obs · 1 cellules
Obs. / cellule
≥ 83
83–82
83–82
83–82
< 83

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

Climate

Mean T°

22,2°C

Annual rain

18mm

Warmest m°

36,2°C

Coldest m°

8,1°C

Elevation: 46 m on average (min 17 m, max 151 m)

Bioclimatic detailsExpert
Annual mean temp.
22,2°C
Annual rain
18mm
Warmest month
36,2°C
Coldest month
8,1°C
Mean alt.
46m
Min
17m
Max
151m
Std. dev.
27m
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

7,6

Org. C

6,9g/kg

Clay

27,4%

Sand

43,8%

Silt

28,8%

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
9,6g/kg
Clay
27,8%
Sand
44,1%
Silt
28,2%
5–15 cm
pH H₂O
7,6
Org. C
6,1g/kg
Clay
27,2%
Sand
43,6%
Silt
29,2%
15–30 cm
pH H₂O
7,6
Org. C
4,9g/kg
Clay
27,1%
Sand
43,8%
Silt
29,2%

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

Land cover

Forest1.2%
Crops1.5%
Built-up19.8%
Bare soil24.8%
Other (grassland, water…)52.7%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

10,9km

Basins crossed

2

Max stream order

8

Max drainage

2 914 060km²

Discharge in basins

80,5m³/s

Mean precip.

19mm/an

Mean T°

21,3°C

Moisture idx

-0,99

Mean runoff

0mm/an

Mean elev. (basins)

168m

Watersheds crossing here

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

Human pressure

Pop. density

84hab/km²

Night light

44,6nW

Built-up

1 982,2%

Pesticides

12,9kg/km²

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