Paul A Baker

Datos Biográficos

ID	110519
NOMBRE	Paul A Baker
NOMBRES	Paul A
APELLIDO	Baker
FIRMA	BAKER P A
AFILIACIONES	Duke University
ORCID	0000-0001-9438-855X
VERIFICADO	Sí
TOTAL DE OBRAS	13
TOTAL DE CITAS	26
TOTAL COMO AUTOR	13
TOTAL COMO EDITOR	0
PRIMER AÑO DE PUBLICACIÓN	2000
AÑO MÁS RECIENTE DE PUBLICACIÓN	2021
ÍNDICE H	3

The Rise and Fall of Wiñaymarka
Open AccessM C Bruno, J M Capriles et al.ARTICLEHuman Ecology2021
Biochronostratigraphy of the western equatorial Atlantic for the last 1.93 Ma
Open AccessFabrício Ferreira, Cleverson G Silva et al.ARTICLEQuaternary International2021
Reconstructing two millennia of copper and silver metallurgy in the Lake Titicaca region (Bolivia/Peru) using trace metals and lead isotopic composition
Open AccessStéphane Guédron, Guédron et al.ARTICLEAnthropocene2021Citada por: 4Referencias: 66
Lake-level variability in Salar de Coipasa, Bolivia during the past ∼40,000 yr
Open AccessJames Andrew Nunnery, Sherilyn C Fritz et al.ARTICLEQuaternary Research2019
Various paleoclimatic records have been used to reconstruct the hydrologic history of the Altiplano, relating this history to past variability of the South American summer monsoon. Prior studies of the southern Altiplano, the location of the world’s largest salt flat, the Salar de Uyuni, and its neighbor, the Salar de Coipasa, generally agree in their reconstructions of the climate history of the past ∼24 ka. Some studies, however, have highly di…
A ~6000 yr diatom record of mid- to late Holocene fluctuations in the level of Lago Wiñaymarca, Lake Titicaca (Peru/Bolivia)
Open AccessD Marie Weide, Sherilyn C Fritz et al.ARTICLEQuaternary Research2017
A multidecadal-scale lake-level reconstruction for Lago Wiñaymarca, the southern basin of Lake Titicaca, has been generated from diatom species abundance data. These data suggest that ~6500 cal yr BP Lago Wiñaymarca was dry, as indicated by a sediment unconformity. At ~4400 cal yr BP, the basin began to fill, as indicated by the dominance of shallow epiphytic species. It remained somewhat saline with extensive wetlands and abundant aquatic plants…
Geologic constraints on rain-fed Qocha reservoir agricultural infrastructure, northern lake Titicaca Basin, Peru
Open AccessNathan Craig, M Aldenderfer et al.ARTICLEJournal of Archaeological Science2011Citada por: 6Referencias: 7
Holocene multidecadal- to millennial-scale hydrologic variability on the South American Altiplano
Open AccessErik J Ekdahl, Sherilyn C Fritz et al.ARTICLEThe Holocene2008Citada por: 3Referencias: 3
Precipitation on the South American Altiplano varies at a range of temporal scales. A long-term secular increase in moisture availability from the early/mid Holocene to the present, driven by increasing summer insolation resulting from precessional changes in the Earth's orbit, has been documented in earlier studies. However, higher frequency Holocene variability is not yet understood. Here we present high-resolution diatom assemblage data from t…
Quaternary glaciation and hydrologic variation in the South American tropics as reconstructed from the Lake Titicaca drilling project
Open AccessSherilyn C Fritz, Paul A Baker et al.ARTICLEQuaternary Research2007
A 136-m-long drill core of sediments was recovered from tropical high-altitude Lake Titicaca, Bolivia-Peru, enabling a reconstruction of past climate that spans four cycles of regional glacial advance and retreat and that is estimated to extend continuously over the last 370,000 yr. Within the errors of the age model, the periods of regional glacial advance and retreat are concordant respectively with global glacial and interglacial stages. Perio…
Vegetation and climate change on the Bolivian Altiplano between 108,000 and 18,000 yr ago
Open AccessAlex Chepstow-Lusty, Alex Chepstow‐lusty et al.ARTICLEQuaternary Research2005
A 90,000-yr record of environmental change before 18,000 cal yr B.P. has been constructed using pollen analyses from a sediment core obtained from Salar de Uyuni (3653 m above sea level) on the Bolivian Altiplano. The sequence consists of alternating mud and salt, which reflect shifts between wet and dry periods. Low abundances of aquatic species between 108,000 and 50,000 yr ago (such as Myriophyllum and Isoëtes ) and marked fluctuations in Pedi…
Hydrologic variation during the last 170,000 years in the southern hemisphere tropics of South America
Open AccessSherilyn C Fritz, Paul A Baker et al.ARTICLEQuaternary Research2004
Despite the hypothesized importance of the tropics in the global climate system, few tropical paleoclimatic records extend to periods earlier than the last glacial maximum (LGM), about 20,000 years before present. We present a well-dated 170,000-year time series of hydrologic variation from the southern hemisphere tropics of South America that extends from modern times through most of the penultimate glacial period. Alternating mud and salt units…
Late Quaternary Climate and Hydrology of Tropical South America Inferred from an Isotopic and Chemical Model of Lake Titicaca, Bolivia and Peru
Open AccessScott Cross, Scott L Cross et al.ARTICLEQuaternary Research2001
A simple mass balance model provides insight into the hydrologic, isotopic, and chemical responses of Lake Titicaca to past climatic changes. Latest Pleistocene climate of the Altiplano is assumed to have been 20% wetter and 5°C colder than today, based on previous modeling. Our simulation of lacustrine change since 15,000 cal yr B.P. is forced by these modeled climate changes. The latest Pleistocene Lake Titicaca was deep, fresh, and overflowing…
The History of South American Tropical Precipitation for the Past 25,000 Years
Open AccessPaul A Baker, Geoffrey O Seltzer et al.ARTICLEScience2001
Long sediment cores recovered from the deep portions of Lake Titicaca are used to reconstruct the precipitation history of tropical South America for the past 25,000 years. Lake Titicaca was a deep, fresh, and continuously overflowing lake during the last glacial stage, from before 25,000 to 15,000 calibrated years before the present (cal yr B.P.), signifying that during the last glacial maximum (LGM), the Altiplano of Bolivia and Peru and much o…
A new estimate of the Holocene lowstand level of Lake Titicaca, central Andes, and implications for tropical palaeohydrology
Open AccessScott Cross, Scott L Cross et al.ARTICLEThe Holocene2000Citada por: 13Referencias: 1
New evidence from piston cores and high-resolution seismic reflection data shows that water levels in Lake Titicaca were as much as 100 m below the present level during the early to mid-Holocene (between .6 and 3.8 14 C kyr BP). Climatological and modelling studies indicate that Lake Titicaca rainfall depends on convective activity in upwind Amazonia; the lake-level data therefore suggest a drier Amazon Basin during this time. This view is bolste…

A new estimate of the Holocene lowstand level of Lake Titicaca, central Andes, and implications for tropical palaeohydrology
Open AccessScott Cross, Scott L Cross et al.ARTICLEThe Holocene2000Citada por: 13Referencias: 1
New evidence from piston cores and high-resolution seismic reflection data shows that water levels in Lake Titicaca were as much as 100 m below the present level during the early to mid-Holocene (between .6 and 3.8 14 C kyr BP). Climatological and modelling studies indicate that Lake Titicaca rainfall depends on convective activity in upwind Amazonia; the lake-level data therefore suggest a drier Amazon Basin during this time. This view is bolste…
Late Quaternary Climate and Hydrology of Tropical South America Inferred from an Isotopic and Chemical Model of Lake Titicaca, Bolivia and Peru
Open AccessScott Cross, Scott L Cross et al.ARTICLEQuaternary Research2001
A simple mass balance model provides insight into the hydrologic, isotopic, and chemical responses of Lake Titicaca to past climatic changes. Latest Pleistocene climate of the Altiplano is assumed to have been 20% wetter and 5°C colder than today, based on previous modeling. Our simulation of lacustrine change since 15,000 cal yr B.P. is forced by these modeled climate changes. The latest Pleistocene Lake Titicaca was deep, fresh, and overflowing…
The History of South American Tropical Precipitation for the Past 25,000 Years
Open AccessPaul A Baker, Geoffrey O Seltzer et al.ARTICLEScience2001
Long sediment cores recovered from the deep portions of Lake Titicaca are used to reconstruct the precipitation history of tropical South America for the past 25,000 years. Lake Titicaca was a deep, fresh, and continuously overflowing lake during the last glacial stage, from before 25,000 to 15,000 calibrated years before the present (cal yr B.P.), signifying that during the last glacial maximum (LGM), the Altiplano of Bolivia and Peru and much o…
Hydrologic variation during the last 170,000 years in the southern hemisphere tropics of South America
Open AccessSherilyn C Fritz, Paul A Baker et al.ARTICLEQuaternary Research2004
Despite the hypothesized importance of the tropics in the global climate system, few tropical paleoclimatic records extend to periods earlier than the last glacial maximum (LGM), about 20,000 years before present. We present a well-dated 170,000-year time series of hydrologic variation from the southern hemisphere tropics of South America that extends from modern times through most of the penultimate glacial period. Alternating mud and salt units…
Vegetation and climate change on the Bolivian Altiplano between 108,000 and 18,000 yr ago
Open AccessAlex Chepstow-Lusty, Alex Chepstow‐lusty et al.ARTICLEQuaternary Research2005
A 90,000-yr record of environmental change before 18,000 cal yr B.P. has been constructed using pollen analyses from a sediment core obtained from Salar de Uyuni (3653 m above sea level) on the Bolivian Altiplano. The sequence consists of alternating mud and salt, which reflect shifts between wet and dry periods. Low abundances of aquatic species between 108,000 and 50,000 yr ago (such as Myriophyllum and Isoëtes ) and marked fluctuations in Pedi…
Quaternary glaciation and hydrologic variation in the South American tropics as reconstructed from the Lake Titicaca drilling project
Open AccessSherilyn C Fritz, Paul A Baker et al.ARTICLEQuaternary Research2007
A 136-m-long drill core of sediments was recovered from tropical high-altitude Lake Titicaca, Bolivia-Peru, enabling a reconstruction of past climate that spans four cycles of regional glacial advance and retreat and that is estimated to extend continuously over the last 370,000 yr. Within the errors of the age model, the periods of regional glacial advance and retreat are concordant respectively with global glacial and interglacial stages. Perio…
Holocene multidecadal- to millennial-scale hydrologic variability on the South American Altiplano
Open AccessErik J Ekdahl, Sherilyn C Fritz et al.ARTICLEThe Holocene2008Citada por: 3Referencias: 3
Precipitation on the South American Altiplano varies at a range of temporal scales. A long-term secular increase in moisture availability from the early/mid Holocene to the present, driven by increasing summer insolation resulting from precessional changes in the Earth's orbit, has been documented in earlier studies. However, higher frequency Holocene variability is not yet understood. Here we present high-resolution diatom assemblage data from t…
Geologic constraints on rain-fed Qocha reservoir agricultural infrastructure, northern lake Titicaca Basin, Peru
Open AccessNathan Craig, M Aldenderfer et al.ARTICLEJournal of Archaeological Science2011Citada por: 6Referencias: 7
A ~6000 yr diatom record of mid- to late Holocene fluctuations in the level of Lago Wiñaymarca, Lake Titicaca (Peru/Bolivia)
Open AccessD Marie Weide, Sherilyn C Fritz et al.ARTICLEQuaternary Research2017
A multidecadal-scale lake-level reconstruction for Lago Wiñaymarca, the southern basin of Lake Titicaca, has been generated from diatom species abundance data. These data suggest that ~6500 cal yr BP Lago Wiñaymarca was dry, as indicated by a sediment unconformity. At ~4400 cal yr BP, the basin began to fill, as indicated by the dominance of shallow epiphytic species. It remained somewhat saline with extensive wetlands and abundant aquatic plants…
Lake-level variability in Salar de Coipasa, Bolivia during the past ∼40,000 yr
Open AccessJames Andrew Nunnery, Sherilyn C Fritz et al.ARTICLEQuaternary Research2019
Various paleoclimatic records have been used to reconstruct the hydrologic history of the Altiplano, relating this history to past variability of the South American summer monsoon. Prior studies of the southern Altiplano, the location of the world’s largest salt flat, the Salar de Uyuni, and its neighbor, the Salar de Coipasa, generally agree in their reconstructions of the climate history of the past ∼24 ka. Some studies, however, have highly di…
The Rise and Fall of Wiñaymarka
Open AccessM C Bruno, J M Capriles et al.ARTICLEHuman Ecology2021
Biochronostratigraphy of the western equatorial Atlantic for the last 1.93 Ma
Open AccessFabrício Ferreira, Cleverson G Silva et al.ARTICLEQuaternary International2021
Reconstructing two millennia of copper and silver metallurgy in the Lake Titicaca region (Bolivia/Peru) using trace metals and lead isotopic composition
Open AccessStéphane Guédron, Guédron et al.ARTICLEAnthropocene2021Citada por: 4Referencias: 66