Effects of climate and land use on herbaceous species richness and vegetation composition in west african savanna ecosystems

  • West African Savanna ecosystems are undergoing severe changes in their vegetation composition due to the impact of human land use and changes in climatic conditions. This study aims to examine the effect of climate, land use, and their interaction on species richness and composition of West African herbaceous vegetation. Plot based vegetation sampling was done in Burkina Faso. Specific richness and diversity indices were used to determine the effect of land use, climate, and their interaction. An importance value was computed to determine herbaceous species dominating the communities. Frequency of species is used to examine their distribution pattern. The results showed that climate significantly influenced herbaceous specific richness more than land use. However, land use had a significant effect on herbaceous vegetation composition. Herbaceous species diversity changed with environmental conditions. The floristic composition of dominant species is driven by both climate and land use. The frequency of distribution demonstrated that herbaceous species occurrences were more influenced by the mixed effect of climate and land use than their separate effects. Occasional and rare species are the most important part of herbaceous vegetation. Thus heterogeneity of Savanna ecosystem and vulnerability of herbaceous species are high.

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Author:Issouf Zerbo, Markus Bernhardt-Römermann, Oumarou Ouedraogo, Karen Hahn-Hadjali, Adjima Thiombiano
Parent Title (English):Journal of botany
Place of publication:Cairo [u. a.]
Contributor(s):Guang S. Zhou
Document Type:Article
Year of Completion:2016
Year of first Publication:2016
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2019/08/12
Issue:Art. 9523685
Page Number:12
First Page:1
Last Page:11
Copyright © 2016 Issouf Zerbo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Institutes:Biowissenschaften / Institut für Ökologie, Evolution und Diversität
Wissenschaftliche Zentren und koordinierte Programme / Zentrum für Interdisziplinäre Afrikaforschung (ZIAF)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Licence (German):License LogoCreative Commons - Namensnennung 4.0