ABSTRACT

Rare and endangered plant species have been investigated based on intensive field work covering all ecological zones in Albaha region, Saudi Arabia. Different cross sections were placed randomly along different ecological sites. In each different habitat types plant species were recorded and sampled by using quadrates 25 by 25 m, and then most rare and endangered species were identified according to the percentage of frequency. In this investigation 46 rare and endangered plant species belongs to 33 families and 41 genera in which 10 endemic to Arabian Peninsula were identified and documented. Names of plants, frequency percentage and density per hectare were gathered. The distribution of rare species, patterns of some most rare and endangered plant species were mapped by using ARC-GIS techniques. Keywords: Plant species, rare, endangered, endemic, near endemic, Albaha, Saudi Arabia

https://ijbpas.com/pdf/2018/April/MS_IJBPAS_2018_4418.pdf

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