_____________________________________________________________________________________________________ *Corresponding author: E-mail: jemmy.achieng@gmail.com; Asian J. Res. Agric. Forestry, vol. 9, no. 1, pp. 38-48, 2023 Asian Journal of Research in Agriculture and Forestry Volume 9, Issue 1, Page 38-48, 2023; Article no.AJRAF.95923 ISSN: 2581-7418 Comparative Assessment of Regeneration, Structure and Species Diversity of Woody Vegetation in Disturbed and Undisturbed Sites of a Secondary Montane Forest, Kenya Jemimah Achieng Ocholla a* , Shadrack Kinyua Inoti a and Gilbert Obati Obwoyere a a Department of Natural Resources, Faculty of Environment and Resources Development, Egerton University, P. O. Box 536-20115, Kenya. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/AJRAF/2023/v9i1195 Open Peer Review History: This journal follows the Advanced Open Peer Review policy. Identity of the Reviewers, Editor(s) and additional Reviewers, peer review comments, different versions of the manuscript, comments of the editors, etc are available here: https://www.sdiarticle5.com/review-history/95923 Received: 25/11/2022 Accepted: 30/01/2023 Published: 07/02/2023 ABSTRACT Secondary montane forest is created by either natural or artificial disturbances resulting in open canopies. It is an important resource in relation to economic and ecological values, however, it faces over-exploitation. The objective of this study was to compare regeneration, forest structure and species diversity of woody vegetation between disturbed and undisturbed sites of the South- Western (SW) Mau forest reserve in Kenya. A nested research sampling design was used, whereby, plots of 500 by 500 m were demarcated in Itare, Maramara and Ndoinet blocks. In disturbed sites, canopy openings were randomly selected to constitute the sample units. In Original Research Article