Al-Shehri MA et al. (2020), Ecology of endangered Prunus korshinskyi Hand.-...

ECB-ART-48679

Saudi J Biol Sci 2020 Jan 01;271:147-156. doi: 10.1016/j.sjbs.2019.06.011.

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Ecology of endangered Prunus korshinskyi Hand.-Mazz. in Jabal Al-Lauz, Saudi Arabia: Plant associations, size structure, and nutritional screening.

Al-Shehri MA , El-Sheikh MA , Al-Farhan AH , Arif IA , Rajakrishnan R , Alatar AA , Faisal M , Basahi RA , Al-Abbadi GA .

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The wild Prunus korshinskyi has a restricted distribution in small scattered areas of Jabal Al-Lauz (2580 m above sea level), a mountain in northwestern Saudi Arabia. Major objective of current study is to provide information about P. korshinskyi by analyzing its ecology in terms of floristic diversity, plant associations, environmental features, and its size structure and nutritional value. For this purpose, 12 stands of 20 m2 were selected along the Jabal Al-Lauz mountain ridge. Three plant associations and their environmental variables were identified and characterized after application of a two-way indicator species analysis (TWINSPAN), detrended correspondence analysis (DCA). And canonical correspondence analysis (CCA) as follows: VGI: P. korshinskyi-Astracantha echinus, VGII: Artemisia siberi-P. korshinskyi, and VGIII: Retama raetam-Artemisia sieberi. The edaphic factor affecting the distribution of the associations were pH, potassium and manganese content. The size class frequency distribution of P. korshinskyi shows a J-shape in spring and fall for the whole population; there was no regeneration via seed. Nutritional evaluation showed the fruits had a higher content of total carbohydrate, fats, crude protein, phosphorus, and potassium, and lower content of ash, Fe, Ca, Mn, Mg, and Zn than that in stems and leaves. This ecological knowledge gained through this study would be beneficial for managing and conserving of P. korshinskyi in a Jabal Al-Lauz area with its distinct and unique vegetation.

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Genes referenced: LOC100887844 srpl

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References [+] :

Al-Rowaily, Effects of open grazing and livestock exclusion on floristic composition and diversity in natural ecosystem of Western Saudi Arabia. 2015, Pubmed

	Fig. 1. Prunus korshinskyi in Jabal Al-Lauz, N.W. Saudi Arabia showing the samples stands.
	Fig. 2. Tabuk climate diagram, Saudi Arabia (1987–2015).
	Fig. 3. Morphology of the plant and fruits attacked by the insects.
	Fig. 4. Life-form relative spectrum of Jabal Al-Lauz vegetation (a). The chorotypes of Jabal Al-Lauz (b): AF: African, IT: Irano Turanian, Med: Mediterranean, SA: Saharo Arabian, SM: Somalia Masai and TR: Tropical.
	Fig. 5. TWINSPAN classification of sample relevés into three vegetation groups (a) and confirmed by DCA ordination (b).
	Fig. 6. CCA biplot and environmental variables (arrows), the stands (a) and the species (b). (For complete names of species, see Table 1).
	Fig. 7. Size class frequency distribution for Prunus korshinskyi in spring and autumn seasons. The ranges of size classes are: 1, ≤500; 2, 501–1000; 3, 1001–1500; 4, 1501–2000; 5, 2001–2500; 6, 2501–3000; 7, 3001–3500; 8, 3501–4000; 9, ≥4000 cm.