Global Journal of Biology, Agriculture & Health Sciences

Global Journal of Biology, Agriculture & Health Sciences
Open Access

ISSN: 2319–5584

+44 1477412632

Abstract

Distribution, Association and Population Structure of Osyris Quadripartita (African Sandalwood) In a Dry Woodland Forest, Southern Ethiopia

Kedir Erbo, Motuma Tolera and Tesfaye Awas

The population status of Osyris quadripartita (Africa sandalwood) is endangered in some places due to
overexploitation for commercial values. The study aim was to assess distribution, association and structure at Arba
Minch Zuria and Banna-Tsemay Districts, Southern Ethiopia. An inventory of species was carried out for determining
the relative proportion of the selected woody species in communities. Systematic sampling was used to collect data
from 62 quadrats (20 m x 20 m) established along transects. Woody species DBH of >2.5 cm and Height of >1.5 m
were measured at each sampled plots. The result showed that 75 woody species from 29 families were recorded from
both sites; Fabaceae (17%) and Combretaceae (12%) had the highest number of species. From five major plant
community identified, Community type IV was highest in species richness while diversity and evenness were highest
in community type III. Likewise, Osyris species highest richness was recorded in community IV. The stem density and
DBH classes of the species showed the reversed J-shaped plots. But, basal area and regeneration status of the species
showed Gaussian curve (Mayile site) and inverted J-shape (Shara site). The analysis results showed fair regeneration
status, but high disturbance on matured trees. We conclude that current over harvesting of mature trees from parenttree
influenced the regeneration status of species. If this unsustainable harvesting by local people continues, the
capacity of the species to maintain its wild population is significantly reduced. Therefore, management and
conservation strategies that incorporates to supporting the livelihood peoples under such environment.

Published Date: 2020-03-18; Received Date: 2020-03-04

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