We examined the floristic composition an d its relationship with environmental factors across 80 floristic relevés of Piliostigma stands distributed along a north-south gradient in Burkina Faso. Various diversity indices were computed. Detrended Correspondence Analysis and Canonical Correspondence Analysis (CCA) were used to explore the relationship between species occurring in Piliostigma stands and environmental vari ables. The results showed that Piliostigma communities show only limited variation in species composition among sites. The first two axes of the DCA together explained 16. 5 % of the floristic variation. The CCA showed that climatic variables explain 42 % of the species variance. The Piliostigma reticulatum asssociation is adapted to reduced rainfall and sandy soil, whereas the P. thonningii association occurs preferentially on clay soil.
Ano de publicação
2015
Autores
Yelemou B; Savadogo P; Traore S B; Millogo-Rasolodimby J; Hien V
Idioma
English
Palavras-chave
biodiversity, floristic composition, specie, forest management
Geográfico
Burkina Faso
