International Journal of
Biodiversity and Conservation

  • Abbreviation: Int. J. Biodivers. Conserv.
  • Language: English
  • ISSN: 2141-243X
  • DOI: 10.5897/IJBC
  • Start Year: 2009
  • Published Articles: 589

Full Length Research Paper

Floristic composition, vegetation structure and regeneration status of Wabero forest, Oromia Regional State, Southeastern Ethiopia

Nigatu Dejene
  • Nigatu Dejene
  • Dello-Mena Preparatory School, Bale Zone, Oromia Regional State, Ethiopia.
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Firew Kebede
  • Firew Kebede
  • Department of Biology, College of Natural and Computational Sciences, Hawassa University, P. O. Box 5, Hawassa, Ethiopia.
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Mulugeta Kebede
  • Mulugeta Kebede
  • Department of Biology, School of Applied Natural Sciences, Adama Science and Technology University, P. O. Box 1888, Adama, Ethiopia.
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  •  Received: 16 October 2018
  •  Accepted: 09 May 2019
  •  Published: 31 October 2019

Abstract

Wabero forest is one of the very few remnant moist evergreen montane forests in Southeast Ethiopia. However, basic data on vegetation structure and composition of the forest that could provide valuable information for possible conservation measures is lacking. The main objective of this study, therefore, was to investigate the woody species composition, vegetation structure and regeneration status of the forest. In the study 30 quadrants of 20 m by 20 m were used for woody species data and 5 m by 5 m for sapling and seedling in a nested form. The sample quadrants were laid down along transects at a distance of 300 m from each other. Diameters at breast height (DBH), basal area, frequency and importance value index were used for analysis of vegetation structure. In the study, a total of 47 woody plant species belonging to 43 genera and 33 families were recorded. The major families were Rubiaceae and Rutaceae each represented by four species followed by Sapindaceae, Moraceae and Oleaceae each represented by three species. The rest of the 28 families were represented by one or two species, only. The mean density of all the woody species recorded in the study site was 21,737 ha-1. Diospyros abyssinica, Podocarpus falcatus, Strychnos mitis, Celtis africana and Coffea arabica were found to be the most dominant and frequent species with the highest importance value index. Results of regeneration status of the forest, which was analyzed by comparing number of seedling and sapling with mature trees, revealed that the forest is under good regeneration status. Therefore, based on the results of the study, awareness creation and implementation of participatory forest management strategy is recommended in order to sustain the forest.

 

Key words: Basal area, diameters at breast height (DBH), importance value index, Montane forest, woody species composition.