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STABLE CARBON AND NITROGEN ISOTOPE ANALYSES OF SUBFOSSIL RATS FROM LIANG BUA (FLORES, INDONESIA)

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Date Issued:
2011
Abstract/Description:
This research study investigated the level of bone collagen preservation of rat femora from Liang Bua cave on the island of Flores, Indonesia, as well as conducted carbon and nitrogen stable isotopic analyses on well preserved samples. Although Flores is located in a hot intermediate tropical zone and the burial environment of the bone samples within the cave is considered less than optimal for collagen preservation, significant preservation of the bone collagen was found. Collagen yields, C:N ratio and carbon and nitrogen concentrations were investigated. However, this research study argues that carbon and nitrogen concentrations are an appropriate means to determine preservation on its own. According to the carbon and nitrogen concentration data 32 samples were considered well preserved. Carbon and nitrogen stable isotopic analyses were conducted on the 32 preserved samples. According to the carbon data a significant shift in the [delta]13C values from a C3 signature to a C4 signature occurred prior to 2,750 years ago. This shift is indicative of the introduction of a non-endemic C4 plant, which is believed to be either foxtail millet or sugarcane. Since this shift occurs abruptly it indicates that the introduction of agriculture to Flores occurred at one time and has continued to present day.
Title: STABLE CARBON AND NITROGEN ISOTOPE ANALYSES OF SUBFOSSIL RATS FROM LIANG BUA (FLORES, INDONESIA).
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Name(s): Anderson, Kelly, Author
Dupras, Tosha, Committee Chair
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2011
Publisher: University of Central Florida
Language(s): English
Abstract/Description: This research study investigated the level of bone collagen preservation of rat femora from Liang Bua cave on the island of Flores, Indonesia, as well as conducted carbon and nitrogen stable isotopic analyses on well preserved samples. Although Flores is located in a hot intermediate tropical zone and the burial environment of the bone samples within the cave is considered less than optimal for collagen preservation, significant preservation of the bone collagen was found. Collagen yields, C:N ratio and carbon and nitrogen concentrations were investigated. However, this research study argues that carbon and nitrogen concentrations are an appropriate means to determine preservation on its own. According to the carbon and nitrogen concentration data 32 samples were considered well preserved. Carbon and nitrogen stable isotopic analyses were conducted on the 32 preserved samples. According to the carbon data a significant shift in the [delta]13C values from a C3 signature to a C4 signature occurred prior to 2,750 years ago. This shift is indicative of the introduction of a non-endemic C4 plant, which is believed to be either foxtail millet or sugarcane. Since this shift occurs abruptly it indicates that the introduction of agriculture to Flores occurred at one time and has continued to present day.
Identifier: CFE0003894 (IID), ucf:48748 (fedora)
Note(s): 2011-08-01
M.A.
Sciences, Department of Anthropology
Masters
This record was generated from author submitted information.
Subject(s): Stable Isotopes
Carbon
Nitrogen
Collagen Preservation
Agriculture
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFE0003894
Restrictions on Access: public
Host Institution: UCF

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