James Bradley - Academia.edu (original) (raw)
Papers by James Bradley
Quaternary International, 2011
This paper examines environmental and archaeological data for the Younger Dryas (YD) (12,900e11,6... more This paper examines environmental and archaeological data for the Younger Dryas (YD) (12,900e11,600 calibrated years before present) (cal BP) and early Holocene (11,600e10,000 cal BP) in the New England-Maritimes (NEM) to model environmental changes and possible human responses. For some other regions of North America, researchers argue for negligible environmental changes and human responses, while others suggest that ecological changes associated with cold conditions at the YD onset disrupted regional biota, causing subsistence stress for Paleoindian populations and the end of the Clovis cultural adaptation (circa 13,200e12,900 cal BP). The NEM shows abrupt cooling at the YD onset, which fostered more open habitats favorable to both long-distance migrating and local herds of caribou, and may have encouraged early Paleoindian colonization and settlement of this unoccupied deglacial region. Comparison of the Paleoindian point sequence with calibrated radiocarbon dates indicates fluted point groups probably occupied the NEM during, but not after, the YD. Abrupt warming at the YD terminus (circa 11,600 cal BP) caused a rapid reorganization of the region's vegetation and prey species populations, coinciding in the archaeological record with a decline in Paleoindian biface fluting technology and altered regional site distributions. In the closed forests of the succeeding early Holocene NEM, late Paleoindian groups (11,600e10,000 cal BP) used unfluted, lanceolate points that may signal post-YD immigration to the NEM.
offices, recognized the need for a more comprehensive understanding of the historic and archaeolo... more offices, recognized the need for a more comprehensive understanding of the historic and archaeological resources of the Commonwealth to inform its decision-making processes. While Massachusetts had been a national leader in historic preservation, overall preservation planning efforts still seemed too biased toward a limited range of historic periods, places, events and people. The staff of the Commission felt that decisions on where to direct efforts to protect and preserve properties and sites had to be grounded in a better and more holistic understanding of the types and locations of cultural resources that characterized communities across the state. These efforts to move toward more comprehensive, resource-based decision-making took the form of a special one-year, National Park Service funded study. The result was a groundbreaking, statewide preservation plan: Cultural Resources in Massachusetts: A Model for Management, published in 1979. In Cultural Resources in Massachusetts: A...
Quaternary International, 2011
This paper examines environmental and archaeological data for the Younger Dryas (YD) (12,900e11,6... more This paper examines environmental and archaeological data for the Younger Dryas (YD) (12,900e11,600 calibrated years before present) (cal BP) and early Holocene (11,600e10,000 cal BP) in the New England-Maritimes (NEM) to model environmental changes and possible human responses. For some other regions of North America, researchers argue for negligible environmental changes and human responses, while others suggest that ecological changes associated with cold conditions at the YD onset disrupted regional biota, causing subsistence stress for Paleoindian populations and the end of the Clovis cultural adaptation (circa 13,200e12,900 cal BP). The NEM shows abrupt cooling at the YD onset, which fostered more open habitats favorable to both long-distance migrating and local herds of caribou, and may have encouraged early Paleoindian colonization and settlement of this unoccupied deglacial region. Comparison of the Paleoindian point sequence with calibrated radiocarbon dates indicates fluted point groups probably occupied the NEM during, but not after, the YD. Abrupt warming at the YD terminus (circa 11,600 cal BP) caused a rapid reorganization of the region's vegetation and prey species populations, coinciding in the archaeological record with a decline in Paleoindian biface fluting technology and altered regional site distributions. In the closed forests of the succeeding early Holocene NEM, late Paleoindian groups (11,600e10,000 cal BP) used unfluted, lanceolate points that may signal post-YD immigration to the NEM.
offices, recognized the need for a more comprehensive understanding of the historic and archaeolo... more offices, recognized the need for a more comprehensive understanding of the historic and archaeological resources of the Commonwealth to inform its decision-making processes. While Massachusetts had been a national leader in historic preservation, overall preservation planning efforts still seemed too biased toward a limited range of historic periods, places, events and people. The staff of the Commission felt that decisions on where to direct efforts to protect and preserve properties and sites had to be grounded in a better and more holistic understanding of the types and locations of cultural resources that characterized communities across the state. These efforts to move toward more comprehensive, resource-based decision-making took the form of a special one-year, National Park Service funded study. The result was a groundbreaking, statewide preservation plan: Cultural Resources in Massachusetts: A Model for Management, published in 1979. In Cultural Resources in Massachusetts: A...