| http://www.w3.org/ns/prov#value | - which may result in lowered genetic diversity through hybridization, competition, or predation (Hegazy, Diekman & Ayad 1999).It is also known that natural, macro-scale stresses such as drought, with disruptive potentials, have taken place in the past and can still take place, consequently changing the ecosystem dynamics and species composition over timeThe role of Botanical GardensFAO (1986) obser
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