Open Access Research Paper Views (1215) Population Structure and Threats to Sustainable Management of Woody Plant Species in a Semi-Arid Agro-Ecosystem in Nigeria T.H. Dauda, S.O. Jimoh, I.O. Azeez J. Biodiv. & Environ. Sci. 8(2), 275-282, February 2016. Keywords: Agro-ecosytems, Population, Sustainability, Threats, Woody species Details