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Open AccessJournal ArticleDOI

Assessing Diet and Seasonality in the Lower Pecos Canyonlands: An Evaluation of Coprolite Specimens as Records of Individual Dietary Decisions

Timothy E. Riley
- 01 Jan 2012 - 
- Vol. 39, Iss: 1, pp 145-162
TLDR
In this paper, an analysis of coprolite specimens from the Lower Pecos canyonlands is presented as records of individual dietary decisions, and the resultant menus reflected in these clusters are evaluated with reference to a diet-breadth model for the known staple resources of the canyonlands.
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This article is published in Journal of Archaeological Science.The article was published on 2012-01-01 and is currently open access. It has received 39 citations till now.

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Citations
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The stable and radio-isotope chemistry of southeastern Utah Basketmaker II burials: dietary analysis using the linear mixing model SISUS, age and sex patterning, geolocation and temporal patterning

TL;DR: The Bayesian linear mixing model SISUS was used to reconstruct reliance on maize and intake of animal protein from the stable carbon (δ13C and nitrogen (ε15N) isotope values of 149 directly dated Basketmaker II burials as mentioned in this paper.
Journal ArticleDOI

The what, how and why of archaeological coprolite analysis

TL;DR: A review of the history and current state of research in human coprolite analysis encompassing macroscopic, microscopic, and biomolecular approaches can be found in this article.
Journal ArticleDOI

Phylogenomics in Cactaceae: A case study using the chollas sensu lato (Cylindropuntieae, Opuntioideae) reveals a common pattern out of the Chihuahuan and Sonoran deserts.

TL;DR: This study provides the first comprehensive plastome phylogeny for any clade within Cactaceae, and resolved the phylogeny of the chollas, including most interspecific and intraspecific relationships.

BIOARCHEOLOGICAL SYNTHESIS for "From the Gulf to the Rio Grande: Human Adaptation in Central, South, and Lower Pecos Texas"

TL;DR: The South Texas area, Region 3 of the Southwestern Division, U.S. Army Corps of Engineers, is synthesized from archeological and bio-archeological perspectives as mentioned in this paper.
References
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Journal ArticleDOI

Deep-freezing of potato starch.

TL;DR: Rapid deep-freezing followed by thawing of moistened starch resulted in increased crystallinity of granules and had minor effect on the granule aqueous solubility and characteristics of gelation.
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A faecal sterol survey in the Clyde Estuary

TL;DR: 5β-Stanols, and in particular coprostanol, which is one of the principal sterols of human sewage, show promise as chemical tracers of faecal pollution in estuaries.
Journal ArticleDOI

What Insights Can Baboon Feeding Ecology Provide for Early Hominin Niche Differentiation

TL;DR: The absence of a fixed-diet in papionins implies that it was unlikely that the more ecologically flexible hominins evolved specializations for any one food type, an interpretation consistent with recent carbon isotope, dental microwear, and ecomorphological studies.
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The steroids of 2000-year-old human coprolites.

TL;DR: Six samples of human coprolites, some more than 2,000 years old, were analyzed for fecal steroid composition and the bile acid composition of the coprolite was similar to that of the stool of modern man.
Journal ArticleDOI

Physical properties of cactus pear (Opuntia ficus india L.) grown wild in Turkey

TL;DR: In this paper, the physical properties of cactus pears were determined, and the effects of different water contents on the properties were investigated at water content levels from 8991% wb to 4476%wb, the linear dimensions decreased from 7193 to 6327mm in length, 5757 to 4810mm in width, and 5208 to 4499mm in thickness.
Frequently Asked Questions (8)
Q1. What is the main focus of coprolite studies?

While the recovery of macrofossils, pollen, and parasitological data has been the main focus of coprolite studies, recent research has also extended into areas of biochemical analysis including27DNA studies (Gilbert et al. 

Other possible techniques for characterizing chemical compounds include gas chromatography (GC), Fourier Transform Infrared Spectroscopy (FTIR), and gas chromatography- mass spectrometry (GC/MS), which also has the ability to monitor the isotope ratios of individual compounds (Degano and Colombini 2009; Evershed 1993; Gilbert et al. 

Prior to the advent of aDNA research, steroid analysis was themost commonly employed chemical technique in coprolite studies (Bull et al. 

While coprolites do provide enough carbon to be dated directly using traditional radiocarbon methods (Williams-Dean 1978), there is the potential of external contamination and admixture of components within the specimen. 

These models deal with a biological necessity, food acquisition that humans share with all other animals, perhaps another reason for the successful introduction of these models in anthropology. 

Despite having a relatively low caloric return by unit weight, prickly pear tunas have the highest caloric return rates of any resource considered in this model. 

Other microfossils have also been recovered from coprolite specimens, includingbacteria, fungal spores, diatoms, and phytoliths (Horrocks et al. 

Storage techniques such as drying and freezing, which are both traditionally used among potato cultivators in the Andes (Johns 1988, 1996), can significantly decrease starch granule digestibility (Dreher et al. 1984; Szymonska 2000).