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	Provedor de dados Biota Neotropica (2) Naturalis (1) Autor Bush,Mark B. (2) Folcik,Alexandra M. (1) Maloney, B.K. (1) McMichael,Crystal H. (1) Oliveira,Paulo E. de (1) Raczka,Marco Felipe (1) Mais... Palavra-chave Fossil pollen (3) Amazonia (1) Borassodendron (1) Extinction (1) Glaciations (1) Holocene (1) Indonesia (1) Lake sediment (1) Livestock (1) Miocene (1) Phylogeny (1) Pleistocene (1) Pleistocene Megafauna (1) Refugia (1) Speciation diversity (1) Sporormiella spores (1) Thailand (1) Mais... Tipo do documento Article / Letter to the editor (1) Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2016 (1) 2006 (1) 2000 (1) País Brazil (2) Netherlands (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Borassodendron (Palmae) in the Southeast Asian fossil pollen record Naturalis Maloney, B.K.. Borassodendron machadonis pollen occurred throughout the Holocene pollen record of Nong Thale Song Hong, Thailand, until about 4000 BP. It was also present in one sample from Khok Phanom Di, Thailand, and in the Mahakam Delta, Kalimantan, records, but B. machadonis has not been reported from the modern flora of Kalimantan. Borassodendron machadonis pollen differs greatly from that of B. borneense, which is found on the island of Borneo. Tipo: Article / Letter to the editor Palavras-chave: Borassodendron; Fossil pollen; Indonesia; Thailand. Ano: 2000 URL: http://www.repository.naturalis.nl/record/525380 The rise and fall of the Refugial Hypothesis of Amazonian speciation: a paleoecological perspective Biota Neotropica Bush,Mark B.; Oliveira,Paulo E. de. The refugial hypothesis is treated as the definitive history of Amazonian forests in many texts. Surprisingly, this important theoretical framework has not been based on paleoecological data. Consequently, a model of Amazonian aridity during the northern hemispheric glaciation has been accepted uncritically. Ironically, the Refuge Hypothesis has not been tested by paleobotanical data. We present a revision of the concept of Neotropical Pleistocene Forest Refuges and test it in the light of paleocological studies derived from pollen analysis of Amazonian lake sediments deposited during the last 20,000 years. Our analysis is based primarily on paleoenvironmental data obtained from sites in Brazil and Ecuador. These data are contrasted with those that favor... Tipo: Info:eu-repo/semantics/other Palavras-chave: Amazonia; Refugia; Fossil pollen; Glaciations; Pleistocene; Holocene; Miocene; Phylogeny; Speciation diversity. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100002 Sporormiella as a tool for detecting the presence of large herbivores in the Neotropics Biota Neotropica Raczka,Marco Felipe; Bush,Mark B.; Folcik,Alexandra M.; McMichael,Crystal H.. The reliability of using the abundance of Sporormiella spores as a proxy for the presence and abundance of megaherbivores was tested in southern Brazil. Mud-water interface samples from nine lakes, in which cattle-use was categorized as high, medium, or low, were assayed for Sporormiella representation. The sampling design allowed an analysis of both the influence of the number of animals using the shoreline and the distance of the sampling site from the nearest shoreline. Sporormiella was found to be a reliable proxy for the presence of large livestock. The concentration and abundance of spores declined from the edge of the lake toward the center, with the strongest response being in sites with high livestock use. Consistent with prior studies in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Extinction; Fossil pollen; Lake sediment; Livestock; Pleistocene Megafauna; Sporormiella spores. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000100110 Registros recuperados: 3 Primeira ... 1 ... Última

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