Use este identificador para citar ou linkar para este item:
https://repositorio.inpa.gov.br/handle/1/18134
Título: | Edge effects on growth and biomass partitioning of an Amazonian understory herb (Heliconia acuminata; Heliconiaceae) |
Autor: | Bruna, Emilio M. Andrade, Ana Segalin de |
Palavras-chave: | Biomass Allocation Deforestation Edge Effect Environmental Change Environmental Conditions Forest Edge Garden Genotype-environment Interaction Growth Rate Habitat Fragmentation Leaf Area Phenotypic Plasticity Transplantation Understory Analysis Of Variance Biomass Ecosystem Genetics Genotype Growth, Development And Aging Heliconiaceae Histology Plant Leaf Quantitative Trait Analysis Of Variance Biomass Ecosystem Genotype Heliconiaceae Plant Leaves Quantitative Trait, Heritable Amazonas Heliconia Acuminata Heliconiaceae |
Data do documento: | 2011 |
Revista: | American Journal of Botany |
É parte de: | Volume 98, Número 10, Pags. 1727-1734 |
Abstract: | Premise: After deforestation, environmental changes in the remaining forest fragments are often most intense near the forest edge, but few studies have evaluated plant growth or plasticity of plant growth in response to edge effects. Methods: In a 2-year common garden experiment, we compared biomass allocation and growth of Heliconia acuminata with identical genotypes grown in 50 × 35 m common gardens on a 25-year-old edge and in a forest interior site. Key results: Genetically identical plants transplanted to the forest edge and understory exhibited different patterns of growth and biomass allocation. However, individuals with identical genotypes in the same garden often had very different responses. Plants on forest edges also had higher growth rates and increased biomass at the end of the experiment, almost certainly due to the increased light on the forest edge. Conclusions: With over 70 000 km of forest edge created annually in the Brazilian Amazon, phenotypic plasticity may play an important role in mediating plant responses to these novel environmental conditions. © 2011 Botanical Society of America. |
DOI: | 10.3732/ajb.1000290 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Não existem arquivos associados a este item.
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.