View Dolores Piperno’s profile on LinkedIn, the world’s largest professional community. Dolores has 1 job listed on their profile. See the complete profile on. Dolores R. Piperno, elected to the National Academy of Sciences in , solved that dilemma by pioneering the use of different kinds of plant. Dolores Piperno of Smithsonian Tropical Research Institute, Panamá with expertise in: Archaeology. Read 4 publications, and contact Dolores Piperno on.
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My profile My library Metrics Alerts. At the same time, ongoing dollres of phytoliths from tropical plants and sediments are discovering new applications.
The data win in the end.
Profile of Dolores R. Piperno
Independent beginnings of agriculture occurred between 12, and 10, years ago in a number of world regions, including the American tropics, southwest Asia, and China. In the core sediments, Piperno and her colleagues found phytolith and pollen evidence of dolorss forest modification from humans practicing slash-and-burn cultivation starting 7, years ago. For her second postdoctoral fellowship, funded by the National Science Foundation Dolords in Environmental Biology, Piperno began to carry out more detailed studies of phytoliths in lakes and other kinds of paleoecological contexts.
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Scholars have long debated why hunters and gatherers became farmers, a question that will also see increasing understanding. This date coincided with the first appearance of maize phytoliths and pollen in the nearby archaeological sites. Phenotypic plasticity, which may be directly induced by developmentally-mediated environmental cues and result in rapid phenotypic divergences in part through changes in gene expression, is a neglected concept in domestication research despite its increasing importance in evolutionary biology.
A 6, year history of Piiperno maize cultivation more. My research interests have mainly involved the archaeology and human ecology of the lowland American tropics together with the biogeographical and climatological history of the tropical biome. The artefacts also contain maize starch Zea mays L. After completing her Ph.
Email address for updates. Ecological Monographs 62 2, Their combined citations are counted only for the first article. With another phytolith researcher, Deborah Pearsall from the University of Missouri Columbia, MOPiperno set out to explore for the first time the wild ancestors of crops like maize and major plants from the Old World, such as rice, so that the plants could be studied in their areas of origin The system can’t perform the operation now.
Subscribe to the AIA e-Update. Missouri Botanical Garden Press; A multidisciplinary approach to scientific questions and close collaboration with geneticists, plant physiologists and other scholars will piece together a reliable picture of the past.
Academic Press, San Diego. Neither the admittedly limited archaeological or paleoecological data indicated the presence of pre-Clovis populations in Panama, and we chose to view Clovis as the first human expression on the Isthmus.
Log In Sign Up. Another Surprising Tool By the late s, Piperno felt that she had a grip on the early cultivation and dispersals of maize and other seed crops, such as squashes, in Panama and northern South America. The potential role of genetic assimilation during maize domestication.
The book included data from molecular biologists who in the s had become involved in issues surrounding plant domestication and were studying the genetic differences between wild plants and domesticated crops to identify the crops’ ancestors. Plant domestication was at its core an evolutionary process involving both natural and human selection for traits favorable for harvesting and consumption.
The oldest macrofossil evidence from Ecuador, however, is from about 3, years BP7. Proceedings of the National Academy of Sciences 99 1, She turned to dolorex called phytoliths, mainly used by North American soil scientists in their research. Our discovery of Zea microfossils in Amazonian lake sediments from Ecuador at about 6, years BP suggests that maize cultivation spread into the Amazon lowlands soon after its arrival in South America.
Profile of Dolores R. Piperno
The Origins of Agriculture in the Lowland Neotropics. The following articles are merged in Scholar. As botanists and other researchers have long known, starch grains, microscopic particles where plants store their energy, are often diagnostic of a plant’s genus and even species.
Piperno began her work career as a medical technicianand used her training and experience in this field when she moved into archaeology. The Origins of Agriculture in the Lowland Neotropics. In the early s, Piperno further expanded the geographic and taxonomic scope of phytolith investigations.