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. But she had no data on the major root crops that were native to the tropical pipeeno, such as manioc and yams.
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Profile of Dolores R. Piperno
These plants did not produce identifiable phytoliths and could not easily be traced dklores their pollen. Archaeological materials offering robust contexts for microfossil study now include stone tools, ceramics, sediments, and human teeth. However, Panama, like other tropical regions, presented a problem for researchers interested in the history of human exploitation of plants and the development of agriculture. 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.
Footnotes This is a Profile of a recently elected member of the National Academy of Sciences to accompany the member’s Inaugural Article on page Phytoliths, tiny inclusions of solid silica formed within plant cells that help to protect plants from herbivores, offer a window into agricultural and environmental history in the tropics and elsewhere 1 — 4.
In recognition of her distinguished record of contributions to the advancement of archaeological science, the Archaeological Institute folores America is pleased to present the Pomerance Award for Scientific Contributions to Archaeology to Professor Dolores R.
Balter M July For the past 7 years, Piperno and her team have tackled the long-debated question of where and when maize was domesticated.
Through a review of recent studies in the New World tropics, this paper presents some contributions to, problems of, and prospects for phytolith analysis to inform the archaeological community about such issues as 1 the origins and dispersals of domesticated plants, 2 the development of tropical forest agriculture, 3 the uses of tropical plants in prehistory, and 4 the distribution and composition of past plant communities.
It is now known that significant, sometimes profound, human environmental modification of many types fire, vegetation clearing; depression of preferred prey through over-exploitation; construction of earthworks and roads has a deep history in the American tropics. 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 pipernl northern South America.
Her geographical areas of research, besides Panama and Central America in general, include Peru and Israel. Log In Sign Up. The artefacts also contain maize starch Zea mays L. Her simultaneous studies of phytoliths in a wide range of modern tropical plants allowed her to assess the characteristics and utility of phytolith formation. Plant domestication was at its core an evolutionary process involving both natural and human selection for traits favorable for harvesting and consumption.
Click here dolorss sign up. Open in a separate window. New citations to this author. In archaeobotanist’s hands, tiny fossils yield big answers”. Her research interests include the study of phytolithsstarch grains, and pollen at archaeological sites near the beginning of the domestication of various crops such as cucurbitsmaize cornand peanuts. Piperno is proud dolpres the work.
Dolores Piperno | Smithsonian Tropical Research Institute
Plants decay so quickly in the steamy warmth of the tropics that it is often dolorws for botanical archaeologists to search the soils there for the fossilized remains of the seeds and roots traditionally used in their work.
How can plant microfossils be improved as a discovery tool for paleobotanical history? Ecological Monographs 62 2, A Comprehensive Guide dooores Archaeologists and Paleoecologists. After completing her Ph. New articles by this author.
Piperno wanted to see if she could use phytoliths to discover the kinds of plants people ate in central Panama at the Aguadulce Rock Shelter, which Ranere excavated. She turned to microfossils called phytoliths, mainly used by North American soil scientists in their research.
To their surprise, they found 6,year-old phytoliths and pollen from maize along with evidence of significant forest disturbance by humans. Piperno DR, Holst I. 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 following articles are merged in Scholar.
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. Her education includes a B. In her doctoral thesis, Piperno showed that phytoliths commonly occurred in diagnostic shapes in many kinds of plants, including important tree and herbaceous flora, and that they were present in high numbers in archaeological sediments.
The status of phytolith analysis in the American tropics more. Publications available in PDF.
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.
Get my own profile Cited by View all All Since Citations h-index 61 44 iindex An Archaeological and Geological Perspective.
We postulate that the major effects of these conditions were to have brought montane vegetation m lower than its present range and to create tracts of open landscape along the Pacific coast.