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Al-Sodany, Y., Kahil, A., Aljuaid, N. (2019). Population Demography of Calotropis procera (Ait.) R.Br. in Taif Region, Saudi Arabia. Egyptian Journal of Botany, 59(3), 567-579. doi: 10.21608/ejbo.2019.5566.1226
Yassin Mohamed Al-Sodany; Anwar Abdel-Karim Kahil; Nawar Sunaydih Aljuaid. "Population Demography of Calotropis procera (Ait.) R.Br. in Taif Region, Saudi Arabia". Egyptian Journal of Botany, 59, 3, 2019, 567-579. doi: 10.21608/ejbo.2019.5566.1226
Al-Sodany, Y., Kahil, A., Aljuaid, N. (2019). 'Population Demography of Calotropis procera (Ait.) R.Br. in Taif Region, Saudi Arabia', Egyptian Journal of Botany, 59(3), pp. 567-579. doi: 10.21608/ejbo.2019.5566.1226
Al-Sodany, Y., Kahil, A., Aljuaid, N. Population Demography of Calotropis procera (Ait.) R.Br. in Taif Region, Saudi Arabia. Egyptian Journal of Botany, 2019; 59(3): 567-579. doi: 10.21608/ejbo.2019.5566.1226

Population Demography of Calotropis procera (Ait.) R.Br. in Taif Region, Saudi Arabia

Article 2, Volume 59, Issue 3, November 2019, Page 567-579  XML PDF (1.72 MB)
Document Type: Regular issue (Original Article)
DOI: 10.21608/ejbo.2019.5566.1226
Cited by Scopus (4)
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Authors
Yassin Mohamed Al-Sodany email orcid 1, 2; Anwar Abdel-Karim Kahil1, 3; Nawar Sunaydih Aljuaid1
1Biology Department, Faculty of Science, Taif University, Taif, KSA
2Botany Department, Faculty of Science, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt
3Legumes Research Department, Field Crops Research Institute, Agricultural Research Centre, Giza, Egypt
Abstract
THE PRESENT study aims at evaluating the state of Calotropis procera to adapt to different environmental conditions and identifying the patterns and sizes in terms of dimensions, size structure and density. Seventy five stands were selected in Taif region and its adjacent area to represent the environmental variations associated with the distribution of C. procera. The population structure of this species was evaluated in terms of size distribution. All dimensions of C. procera differed significantly along the altitude gradient, habitat and locations, except that of diameter which did not differ significantly along the altitude gradient and habitats. The altitude of 1300-1500m above sea level had the maximum values of height, size index, volume and height: diameter ratio, while the altitude of 1500-1700 had the minimum of height, diameter, and size index. Regarding habitat types, wadi beds had the maximum values of diameter, size index and volume, while depression spots had the maximum of height and height:diameter ratio. Sand flats had the minimum values of all population dimension. The density of C. procera differed significantly along altitude gradients. The total mean of size index-class frequency distributions of C. procera population approximated the positive inverse J-shape in the study area towards the relative preponderance of small individuals.
Keywords
Demography; High altitudes; Population ecology; Size structure
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