The effects of seasonal variation and multiple debarking on antioxidant activity of Sclerocarya birrea (Anacardiaceae) stem bark

Nndwammbi, M.; Ligavha-Mbelengwa, M.H.; Ramaite, Isaiah D. I.; Anokwuru, Chinedu P.

doi:10.1016/j.sajb.2017.01.149

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“…Conversely, when the magnitude of debarking becomes comparatively lower, the abundance of mature trees rises. The finding is consistent with previous studies which indicated that debarking makes trees susceptible to infestation by insects, decay of stem and subsequent death (Nndwammbi et al, 2018). Debarking interferes with the exchange of materials leading to the eventual death of the trees (Beltrán et al, 2021).…”

Section: Threats On Relative Abundance Of Warburgia Ugandensis the Re...supporting

confidence: 92%

“…Bark harvesting can have a highly negative impact on tree species as it alters the structure, reproduction and physiological continuity of mature plants, thus threatening their survival (Beltrán et al, 2021). Besides, recovery patterns and survival of trees after debarking are dependent on the intensity of debarking, season of debarking, and the size of the trees (Nndwammbi et al, 2018). Destructive harvesting practices such as the full-ring barking of medicinal plant species have led to the drastic decline of the population of these plants of socioeconomic importance (Guedje et al, 2016).…”

Section: Threats On Relative Abundance Of Warburgia Ugandensis the Re...mentioning

confidence: 99%

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Distribution, Conservation Status and Effects of Threats on Relative Abundance of Warburgia ugandensis Tree Species. A Case Study of Katimok Forest Reserve, Kenya

Dokata

Mburu²,

Macharia³

et al. 2023

East Afr. j. for. agrofor.

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Forest ecosystems provide livelihood opportunities such as medicines, fuelwood, timber, cash income and a reliable supply of groundwater. However, encroachment of forests by human settlement adjacent to conservation areas is associated with overharvesting of forest resources and uncontrolled livestock grazing leading to the destruction and disappearance of useful plant species in forest ecosystems which can significantly affect both biodiversity integrity and ecological functioning. Therefore, this study aimed to investigate the distribution, conservation status, and effects of threats on the relative abundance of Warburgia ugandensis in Katimok Forest Reserve, Baringo County in Kenya. Data collection was done using transect lines and quadrat methods. The data on the relative abundance of Warburgia ugandensis and indicators of threat were collected from quadrats and sub-quadrats located at 50 m, 350 m and 650 m from the forest edge. In addition, other measures of tree growth such as diameter at breast height (DBH) and heights of mature trees in the study blocks were made. One-way ANOVA was used to analyse the relative abundance of Warburgia ugandensis, indicators of threat and growth parameters. Pearson correlation results revealed a significant relationship between debarked and mature Warburgia ugandensis (r = 0.95; df=2, P=0.019), grazing intensities, and number of seedlings/saplings (r = 0.96; df=2, P=0.017) and other indicators of threats (stumps, defoliated leaves, broken twigs/branches) and the abundance of Warburgia ugandensis (r = 0.97; df=2, p=0.015). Therefore, there is an urgent need to map out the distribution of Warburgia ugandensis in the whole country to know where it is abundant in order to draw a national conservation and management plan for the tree species.

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Section: Threats On Relative Abundance Of Warburgia Ugandensis the Re...supporting

confidence: 92%

Section: Threats On Relative Abundance Of Warburgia Ugandensis the Re...mentioning

confidence: 99%

Distribution, Conservation Status and Effects of Threats on Relative Abundance of Warburgia ugandensis Tree Species. A Case Study of Katimok Forest Reserve, Kenya

Dokata

Mburu²,

Macharia³

et al. 2023

East Afr. j. for. agrofor.

View full text Add to dashboard Cite

show abstract

The effects of seasonal variation and multiple debarking on antioxidant activity of Sclerocarya birrea (Anacardiaceae) stem bark

Cited by 1 publication

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Distribution, Conservation Status and Effects of Threats on Relative Abundance of Warburgia ugandensis Tree Species. A Case Study of Katimok Forest Reserve, Kenya

Distribution, Conservation Status and Effects of Threats on Relative Abundance of Warburgia ugandensis Tree Species. A Case Study of Katimok Forest Reserve, Kenya

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