Seed survival of the tropical tree cryptocarya aschersoniana (lauraceae): consequences of habitat disturbance

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorTonetti, Olívia A. O.-
Autor(es): dc.creatorFaria, José M. R.-
Autor(es): dc.creatorJosé, Anderson C.-
Autor(es): dc.creatorOliveira, Túlio G. S.-
Autor(es): dc.creatorMartins, José C.-
Data de aceite: dc.date.accessioned2026-02-09T11:12:36Z-
Data de disponibilização: dc.date.available2026-02-09T11:12:36Z-
Data de envio: dc.date.issued2017-02-01-
Data de envio: dc.date.issued2017-02-01-
Data de envio: dc.date.issued2016-05-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/12225-
Fonte completa do material: dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1111/aec.12305/full-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1135996-
Descrição: dc.descriptionSeed survival in soil could be strongly influenced by habitat characteristics, but little is known about the behaviour of seeds sensitive to desiccation in seed banks installed in natural or disturbed habitats. Cryptocarya aschersoniana seeds disperse at the end of the rainy season but do not germinate immediately; thus, they may form seed banks in soil. This study evaluated the behaviour of C. aschersoniana seed banks induced in the natural environment of the species and in a disturbed area. Recently harvested C. aschersoniana germination units were characterized according to their water content, germination and viability. In 2011 and 2012, seed banks were established by burying samples of seeds in the understory of a semi-deciduous forest. In 2012, samples were also buried in a disturbed area. The seed banks were sampled at certain time intervals, and the samples were characterized as described above. Precipitation and air temperature data were collected. As a result, seeds in the seed bank established in the natural environment form a transient seed bank and showed the same behaviour in both years studied. A germination peak was observed starting 210 days after burial (coinciding with the onset of the rainy season) and reached germination percentages higher than 80% at the end of the experiment for both years. Seed mortality did not exceeded 28% in the natural environment. However, in the disturbed environment, the seeds lost their viability more rapidly, with 90% of the seeds becoming unviable 240 days after burial. Germinated seeds in the disturbed environment (maximum 21%) were not able to establish seedlings. These results underscore the importance of maintaining a natural, undisturbed forest for the conservation of this species.-
Idioma: dc.languageen-
Publicador: dc.publisherWiley Online Library-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceAustral Ecology-
Palavras-chave: dc.subjectSeed survival-
Palavras-chave: dc.subjectCryptocarya aschersoniana (Lauraceae)-
Palavras-chave: dc.subjectSeeds - Behaviour-
Palavras-chave: dc.subjectSeeds - Germination-
Título: dc.titleSeed survival of the tropical tree cryptocarya aschersoniana (lauraceae): consequences of habitat disturbance-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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