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First records of pollen rain in bromeliad tanks in an area of caatinga in northeastern Brazil Acta Botanica
Gomes,Jéssica Mirella de Souza; Lima,Luciene Cristina Lima e; Santos,Francisco de Assis Ribeiro dos; Silva,Francisco Hilder Magalhães e.
Species of Bromeliaceae have leaves in a spiral configuration. Because of the shape of the rosette thus formed and the imbricate configuration of the leaf sheaths, there is usually a tank in which rainwater and other components of the environment, including pollen grains, accumulate, making such tanks effective pollen rain collectors. The objective of this study was to use bromeliads as a tool to increase knowledge about the vegetation of the caatinga (shrublands) in the Canudos region of the state of Bahia, located in the semi-arid zone of Brazil, as well as to analyze the dynamics of pollen dispersal and deposition. To that end, we collected samples of the water from the tanks of bromeliads at the Canudos Biological Station. A total of 149 pollen types...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bromeliaceae; Pollen rain; Natural pollen trap.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200004
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First report of modern pollen deposition in moss polsters in a semiarid area of Bahia, Brazil Acta Botanica
Santos,Daiane Alves dos; Lima e Lima,Luciene Cristina; Santos,Francisco de Assis Ribeiro dos; Silva,Francisco Hilder Magalhães e.
Recent studies have shown that pollen analyses of natural substrates can produce data valuable for understanding the local pollen productivity and dispersal, deposition, and preservation potential of pollen grains. In this study, we aimed to acquire novel information about the dynamics and preservation of pollen in Caatinga environment through the palynological study of moss polsters. Samples of moss polsters in soil (MPS) and on rock (MPR) were collected from the Canudos Biological Station in the Bahia State (Brazil) and subjected to standard chemical treatments for the extraction of pollen residues. In total, 372 pollen types were recorded from the samples of which the taxonomical affinity of 140 was determined. The most represented families were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian NE; Moss; Natural pollen trap; Pollen rain; Semiarid.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400532
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Pollen record of disturbed topsoil as an indirect measurement of the potential risk of the introduction of non-native plants in maritime Antarctica RChHN
Fuentes-Lillo,Eduardo; Troncoso-Castro,J. Max; Cuba-Díaz,Marely; Rondanelli-Reyes,Mauricio J..
BACKGROUND: This is a study of current pollen rain on soil disturbed by human use on the Fildes Peninsula, King George Island, South Shetland Islands. A sector strongly affected by human activity, an area between the Eduardo Frei Montalva Chilean Air Force (FACH) base and the Professor Julio Escudero base of the Chilean Antarctic Institute (INACH) were sampled. A less used sector associated with scientific activity and controlled tourism, Ardley Island, and an area of low human activity, the terminal moraine of the Collins glacier, were also sampled. The samples were collected in the southern summer of 2015 and kept in the Palynology and Plant Ecology Laboratory of the Los Angeles Campus of the Universidad de Concepción, Chile FINDINGS: The area of...
Tipo: Journal article Palavras-chave: Pollen rain; Climate change; Anthropization; Ice-free zones; Fildes Peninsula; South Shetland Islands.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2016000100004
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