Effects of bark harvest and other human activity on populations of the African cherry (Prunus africana) on Mount Oku, Cameroon

Stewart, Kristine M.

doi:10.1016/j.foreco.2009.05.039

Cited by 49 publications

(62 citation statements)

References 21 publications

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“…Also young trees have high resistance to harsh conditions and recover easily from exploitation. This finding confirms the results of Stewart (2009) who highlighted similar finding in Kilum forest.…”

Section: Tree Mean Dbh Variation Along Elevationsupporting

confidence: 92%

The Ecological Distribution of Wild Prunus africana in Mount Cameroon National Park, Cameroon

Melle¹,

Nkwatoh²,

Nsadzetsen³

2016

Int. J. Curr. Res. Biosci. Plant Biol.

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A b s t r a c t A r t i c l e I n f oTropical montane forests contain some of the world's richest plant communities but knowledge of the population and distribution of their diversity is still fragmentary. Among such species is Prunus africana which is of great economic and health value to forest communities and the world at large. The aim of the study was to evaluate the abundance, pattern of distribution, bark thickness and health status of Prunus Africana along elevational gradient on the slopes of mount Cameroon. In this study, three classes of elevations (1700 -2000m, 2000-3000m and 3000m and above) were selected using a digitized map of mount Cameroon and a global positioning receptor (Garmin GPSMAP 60CX). Sampling plots were selected in three different blocks of the mountain using management inventory method under adaptive cluster sampling technique. Five square plots measuring 100m by 100m were examined in three different classes of elevation. In each plot, record of all Prunus trees, diameter at breast height, bark thickness and health status were examined. ANOVA, Correlation, and Chi-square were the statistical models used in the data analysis. The result showed that a total number of 177 trees were recorded from the entire national park surface area (450,000m 2 ). The height density (6.2 stem/ha) was recorded at the lowest class of elevation while the least density (1.2 stem/ha) was recorded at the highest class of elevation. It also revealed that variations in elevation accounted for 0.001cm change in bark thickness. The highest mean bark thickness (1.12cm) was recorded at the highest class of elevation while the least mean bark thickness (0.86cm) was recorded at the least elevation. The highest mean diameter at breast height (51.22cm) was registered at the highest class of elevation while the least mean diameter at breast height (36.57cm) was recorded at the lowest class of elevation. Healthy trees had the highest population (83.87%) at the lowest class of elevation while the least population (61.11%) was found at the highest class of elevation.

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Section: Tree Mean Dbh Variation Along Elevationsupporting

confidence: 92%

The Ecological Distribution of Wild Prunus africana in Mount Cameroon National Park, Cameroon

Melle¹,

Nkwatoh²,

Nsadzetsen³

2016

Int. J. Curr. Res. Biosci. Plant Biol.

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“…This species was not found in grazed areas where sampling was carried out, presumably due to livestock-related disturbances, and can therefore be considered a potentially sensitive plant species and indicator of late succession in the montane forest. Stewart (2009) observed declines in populations of P. africana due to anthropogenic activities including bark harvesting, wildfires and livestock grazing in Cameroon. Substantial evidence indicates that livestock grazing is among the causative agents for regeneration failure of P. africana in Mount Oku, Cameroon (Stewart 2009).…”

Section: Variation In Plant Species Composition Inmentioning

confidence: 96%

Impacts of livestock grazing on plant species composition in montane forests on the northern slope of Mount Kilimanjaro, Tanzania

Kikoti

Mligo

2015

International Journal of Biodiversity Science, Ecosystem Servic

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The montane forests on Mount Kilimanjaro are part of the ecologically protected area and provide ecosystem services to the local communities on the lower slopes. Despite their ecological value, the montane forests on the northern slope of Mount Kilimanjaro have been affected by increased livestock grazing pressure due to prolonged drought and expansion of agricultural land. We examined the impacts of livestock grazing on plant species composition in the montane forests on the northern slope of Mount Kilimanjaro. The study area was sub-divided into heavily grazed, moderately grazed, lightly grazed and ungrazed sites. A quadrat method was used for field data collection. A total of 115 plant species distributed within 93 genera and 39 families were identified. Moderately grazed and lightly grazed areas had higher plant species diversities than heavily and ungrazed areas. This observation concurs with the intermediate disturbance hypothesis. However, plant species that contributed to high species richness and diversity in grazed areas were mainly grasses, shrubs and herbs. It was concluded that livestock grazing in montane forests on the northern slope of Mount Kilimanjaro has serious impacts on vegetation community composition. Conservation of montane forest habitat and improvement of rangelands on communal land are necessary.

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“…The ability to regenerate bark after harvesting is species-specific and sustainable forest management may depend on this ability (Delvaux et al, 2009;Stewart, 2009), in conjunction with bark quality criteria: texture, tissue homogeneity and thickness (Sen et al, 2011). In Q. suber, cork bark is produced by the phellogen (or cork cambium), a secondary meristem that seems to maintain its activity throughout the tree's life and forms successive cork layers (Graça and Pereira, 2004).…”

Section: Cork Harvestingmentioning

confidence: 99%

How resilient is Quercus suber L. to cork harvesting? A review and identification of knowledge gaps

Oliveira

Costa

2012

Forest Ecology and Management

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Effects of bark harvest and other human activity on populations of the African cherry (Prunus africana) on Mount Oku, Cameroon

Cited by 49 publications

References 21 publications

The Ecological Distribution of Wild Prunus africana in Mount Cameroon National Park, Cameroon

The Ecological Distribution of Wild Prunus africana in Mount Cameroon National Park, Cameroon

Impacts of livestock grazing on plant species composition in montane forests on the northern slope of Mount Kilimanjaro, Tanzania

How resilient is Quercus suber L. to cork harvesting? A review and identification of knowledge gaps

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