Plant Communities And Diversity Along Altitudinal Gradients From Lake Abaya To Chencha Higlands

Vegetation-environment relationships have been investigated in the study. Communityrntransition and species diversity are affected among others by environmental heterogeneity.rnMultivariate numerical techniques were adopted to identify communities. The resemblancernfunction for the identification of communities was similarity ratio, while correlationrncoefficient was used to identify species groups. Shannon-Wiener diversity index and Jaccard’srncommunity coefficient were computed to measure species diversity in a community andrncommunity transitions respectively. One-way analysis of Variance (ANOVA) was used to test the differentiation of communities due to environmental factors such as soil properties, slope and aspect. The results helped to identify five plant communities and seven species groups.rnStatistical analysis indicates that the differentiation of communities might partly be explainedrnby the variation of soil properties and topographic features at p

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