Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/11967
Tipo do documento: Artigo
Título: Influence of fire history and soil properties on plant species richness and functional diversity in a neotropical savanna
Autor: Silva, Danilo Muniz
Batalha, Marco Antônio
Cianciaruso, Marcus Vinicius
Abstract: Differences in plant species richness and composition are associated with soil properties and disturbances such as fire, which can therefore be key determinants of species occurrence in savanna plant communities. We measured species richness, using nine plant functional traits and abundance to calculate three functional diversity indices. We then used model selection analyses to select the best model for predicting functional diversity and richness based on soil variables at sites with three different fire frequencies. We also calculated the community-weighted mean of each trait and used ordination to examine how traits changed across fire frequencies. We found higher species richness and functional dispersion at sites that were more fertile and where fire was frequent, and the opposite at such sites where fire was infrequent. However, soil properties influenced functional evenness and divergence only where fire was infrequent, with higher values where soils were poorer. Fire can change functional traits directly by hindering development of plants and indirectly by altering competition. Different fire frequencies lead to different plant-soil relationships, which can affect the functioning of tropical savanna communities. Functional diversity components and functional identity of the communities are both affected by fire frequency and soil conditions.
Palavras-chave: Cerrado
Complementarity
Fertility effect
Plant traits
Soil nitrogen
País: Brasil
Instituição: Sociedade Botânica do Brasil
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: SILVA, Danilo Muniz; BATALHA, Marco Antônio; CIANCIARUSO, Marcos Vinicius. Influence of fire history and soil properties on plant species richness and functional diversity in a neotropical savanna. Acta Botanica Brasílica, Belo Horizonte, v. 27, n. 3, p. 490-497, July/Sept. 2013.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1590/S0102-33062013000300005
Identificador do documento: 10.1590/S0102-33062013000300005
URI: http://repositorio.bc.ufg.br/handle/ri/11967
Data de publicação: Set-2013
Aparece nas coleções:ICB - Artigos publicados em periódicos

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