Phenology of Zamia boliviana (Zamiaceae), a threatened species from a seasonally dry biodiversity hotspot in South America

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Autor(es): dc.contributorCiência e Tecnologia de Mato Grosso-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorSegalla, Rosane-
Autor(es): dc.creatorPinheiro, Fábio-
Autor(es): dc.creatorBaronio, Gudryan J.-
Autor(es): dc.creatorMorellato, Leonor Patrícia Cerdeira-
Data de aceite: dc.date.accessioned2025-08-21T22:41:54Z-
Data de disponibilização: dc.date.available2025-08-21T22:41:54Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/1442-1984.12360-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233893-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233893-
Descrição: dc.descriptionDioecy, a character common to all cycads, requires obligatory outcrossing. The absence of potential reproductive mates of the opposite sex renders individuals effectively sterile. Therefore, reproductive synchrony is essential for the reproductive success of cycads. Here, we describe the reproductive phenology, morphology, and lifespan of strobili of Zamia boliviana (Cycadales, Zamiaceae), an endemic cycad in South America. We examined the variation in timing of maturation between polliniferous and ovuliferous individuals in two Z. boliviana populations. Lifespan of polliniferous and ovuliferous strobili was based on direct observations and systematic measurements of strobili development. Phenological study covered three reproductive cohorts in two distinct cycad populations. Lifespan of polliniferous strobili was comprised of four phases and lasted 50 days until the cycle's completion, while ovuliferous strobili underwent seven phases that extended over 330 days until seed dehiscence. Both sexes produced strobili during the dry season. We identified a seasonally synchronous pattern in the reproductive phenology of Z. boliviana, with a major overlap in the phases of emergence, pollen release, and strobili receptivity between sexes, populations, and subsequent years. Reproductive events of Z. boliviana followed the seasonality of the Cerrado vegetation and climate. Synchrony between the period of strobili production and reproductive activity peaks was found in both sexes, but seed dehiscence occurred in the dry season. Our study provides relevant and new biological data for Z. boliviana in its natural habitat, demonstrating a temporal distinction between the lifespan of polliniferous and ovuliferous strobili and the necessary overlap between the release and receptivity of pollen.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstituto Federal de Educação Ciência e Tecnologia de Mato Grosso-
Descrição: dc.descriptionDepartamento de Biodiversidade Laboratório de Fenologia Instituto de Biociências Universidade Estadual Paulista UNESP-
Descrição: dc.descriptionDepartamento de Biologia Vegetal Instituto de Biologia Universidade Estadual de Campinas-
Descrição: dc.descriptionDepartamento de Ecologia Instituto de Biociências (IB-USP) Universidade de São Paulo-
Descrição: dc.descriptionDepartamento de Biodiversidade Laboratório de Fenologia Instituto de Biociências Universidade Estadual Paulista UNESP-
Formato: dc.format118-131-
Idioma: dc.languageen-
Relação: dc.relationPlant Species Biology-
???dc.source???: dc.sourceScopus-
Título: dc.titlePhenology of Zamia boliviana (Zamiaceae), a threatened species from a seasonally dry biodiversity hotspot in South America-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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