European Academic Research ISSN 2286-4822
ISSN-L 2286-4822
Impact Factor: 3.4546 (UIF)
DRJI Value : 5.9 (B+)
Article Details :
Article Name :
Distribution of Parthenium hysterophorus Linn and its Impacts on Biodiversity in Nyando Sub-County, Kisumu County, Kenya
Author Name :
Dorca Auma Murono, Emily Wabuyele, Paul K. Muoria, John Otieno Abuto
Publisher :
Bridge Center
Article URL :
Abstract :
Parthenium hysterophorus Linn has been classified as one of the world’s most serious invasive plants. The weed threatens natural and agro-ecosystems in over 30 countries worldwide. Parthenium hysterophorus is a hazardous weed which causes harm to biodiversity, natural plant ecosystems, humans and livestock. In Kenya, the weed was first reported in the early 1970s and has since spread to several parts of the country. Currently, there is no study on the detailed distribution of P. hysterophorus and its impacts on biodiversity in Kenya. Thus, the aim of this study was to evaluate the extent of invasion and impacts of P. hysterophorus on plant species diversity in Nyando Sub-County of Kisumu County. GPS data on the presence of P. hysterophorus was loaded into ArcGPS 9.1 software to develop point distribution map. Fifteen transects were randomly established and vegetation surveys conducted. One-way ANOVA was used to determine significant differences in the mean values of vegetation variable data (richness, diversity and density) among various land use types (p = 0.05). The effects of P. hysterophorus density on species diversity, richness and density of other herbaceous plant species were evaluated by correlation and linear regression analyses. There was a negative correlation between the density of the weed and species diversity (r = -0.075, p = 0.029) and richness (r = -0.924, p = 0.001). This shows that where P. hysterophorus density was high, species diversity, and richness was low. Therefore, there is need for increased awareness of P. hysterophorus, its impacts and possible solutions among the local people and relevant stakeholders. Appropriate measures should be taken to control this weed in Kenya.
Keywords :
Parthenium hysterophorus, invasive plants, distribution, diversity, richness, density.

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