International Journal of Biodiversity and Conservation
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Article Number - 24E7A5341469


Vol.5(12), pp. 803-809 , December 2013
DOI: 10.5897/IJBC2013.0623
ISSN: 2141-243X



Full Length Research Paper

Impact of the invasive shrub, Lantana camara L. on soil properties in Nairobi National Park, Kenya



Yusuf R. Simba
  • Yusuf R. Simba
  • Department of Zoology, Jomo Kenyatta University of Agriculture and Technology, P. O Box 6200-00200, Nairobi, Kenya
  • Google Scholar
Abel M. Kamweya
  • Abel M. Kamweya
  • Department of Zoology, Jomo Kenyatta University of Agriculture and Technology, P. O Box 6200-00200, Nairobi, Kenya
  • Google Scholar
Peter N. Mwangi
  • Peter N. Mwangi
  • Department of Botany, Jomo Kenyatta University of Agriculture and Technology, P. O Box 6200-00200, Nairobi, Kenya.
  • Google Scholar
John M. Ochora
  • John M. Ochora
  • Department of Botany, Jomo Kenyatta University of Agriculture and Technology, P. O Box 6200-00200, Nairobi, Kenya.
  • Google Scholar







 Accepted: 10 October 2013  Published: 31 December 2013

Copyright © 2013 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Lantana camara L. (Verbenaceae) is an invasive shrub of global significance in the conservation of biodiversity in terrestrial ecosystems. The invasive species has profound impact on soil ecosystems due to its allelopathic and litter accumulation effect. This study tested for its impact on soil properties in Nairobi National Park (NNP) by randomly sampling soil from the invaded and un-invaded sites in three habitats namely forest, riverine and shrub-grassland using the Modified Whittaker plot design. Six plots were laid in the forest, four in the riverine and eight in the shrub-grassland. Ten samples were collected at invaded and ten at un-invaded sites per habitat totaling to sixty which were obtained and analysed. Two-way analysis of variance (ANOVA) results indicated significant differences in the values of soil pH, the concentrations of magnesium, calcium and potassium between the invaded and un-invaded sites and their levels were higher in invaded sites. Also magnesium, calcium and potassium varied significantly across the forest, riverine and shrub-grassland. These results suggest that L. camara can improve the nutrient levels of soil and therefore influence nutrient cycling resulting to making the ground better for its growth and this might explain the capacity of the invasive species to outcompete the native ones.

Key words: Biodiversity, conservation, impact, soil macronutrients, allelochemicals.

 

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APA (2013). Impact of the invasive shrub, Lantana camara L. on soil properties in Nairobi National Park, Kenya. International Journal of Biodiversity and Conservation, 5(12), 803-809.
Chicago Yusuf R. Simba, Abel M. Kamweya, Peter N. Mwangi and John M. Ochora. "Impact of the invasive shrub, Lantana camara L. on soil properties in Nairobi National Park, Kenya." International Journal of Biodiversity and Conservation 5, no. 12 (2013): 803-809.
MLA Yusuf R. Simba, et al. "Impact of the invasive shrub, Lantana camara L. on soil properties in Nairobi National Park, Kenya." International Journal of Biodiversity and Conservation 5.12 (2013): 803-809.
   
DOI 10.5897/IJBC2013.0623
URL http://academicjournals.org/journal/IJBC/article-abstract/24E7A5341469

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