Current Search:   Duncan, Neil (x)

View All Items

  • CSV Spreadsheet
(1 - 2 of 2)
Whetting Their Appetite: A Spatial Analysis of Seasonal Flooding and Raised Field Agriculture in the Llanos de Mojos, Bolivia
Title
Whetting Their Appetite: A Spatial Analysis of Seasonal Flooding and Raised Field Agriculture in the Llanos de Mojos, Bolivia.
Creator
Martin, Samuel, Walker, John, Branting, Scott, Duncan, Neil, University of Central Florida
Abstract / Description
The Llanos de Mojos, a region of the southwestern Amazon, is a seasonally flooded savannah located in the Beni department of Bolivia. The area sustained a significant pre-Columbian population up to the arrival of Jesuit missionaries in the late 17th century. Local communities constructed agricultural landscape modifications to help cultivate crops such as maize, manioc, and sweet potato. Raised fields contributed to soil nutrient intensification and helped to manage flooding. This study...
Show moreThe Llanos de Mojos, a region of the southwestern Amazon, is a seasonally flooded savannah located in the Beni department of Bolivia. The area sustained a significant pre-Columbian population up to the arrival of Jesuit missionaries in the late 17th century. Local communities constructed agricultural landscape modifications to help cultivate crops such as maize, manioc, and sweet potato. Raised fields contributed to soil nutrient intensification and helped to manage flooding. This study examines the relationship between 40,766 raised agricultural fields which were digitized by the Proyecto SIG Arqueol(&)#243;gico del Beni using Google Earth and maps of surface flood coverage. Flood maps from 2012(-)2016 were analyzed using 14-day aggregates of Moderate Resolution Imaging Spectroradiometer (MODIS) data provided by the Dartmouth Flood Observatory. These datasets were compared using ArcGIS to examine the extent and variability of yearly flooding as well as the number of raised fields which were subject to seasonal inundation on a year-by-year basis. It was found that despite significant portions of the region being covered by seasonal floods, only 5.79% of the fields were exposed to flooding in total. This study concluded that raised fields were more suited to the containment and dispersion of localized precipitation rather than the dispersion of riverine flooding. Several fields that have paleobotanical associations with maize, manioc, and sweet potato cultivation only experience flooding for 1 out of the 5 years analyzed, supporting their practicality for growing water-sensitive crops.
Show less
Date Issued
2018
Identifier
CFE0007223, ucf:52234
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0007223
Animals of the cloud forest: isotopic variation of archaeological faunal remains from Kuelap, Peru
Title
Animals of the cloud forest: isotopic variation of archaeological faunal remains from Kuelap, Peru.
Creator
Michell, Samantha, Toyne, J. Marla, Duncan, Neil, Dupras, Tosha, University of Central Florida
Abstract / Description
Stable isotopic analyses of faunal remains are used as a proxy for reconstructing the ancient Chachapoya dietary environment of the northeastern highlands in Peru. Archaeologists have excavated animal remains from refuse piles at the monumental center of Kuelap (AD 900-1535). This archaeological site is located at 3000 meters above sea level (m.a.s.l.), where C3 plants dominate the region. The study presented here is one of the few in the Central Andes that uses faunal remains to develop...
Show moreStable isotopic analyses of faunal remains are used as a proxy for reconstructing the ancient Chachapoya dietary environment of the northeastern highlands in Peru. Archaeologists have excavated animal remains from refuse piles at the monumental center of Kuelap (AD 900-1535). This archaeological site is located at 3000 meters above sea level (m.a.s.l.), where C3 plants dominate the region. The study presented here is one of the few in the Central Andes that uses faunal remains to develop local isotopic baselines, reconstruct resource exploitation, and provide insight into dietary variation. Bone collagen stable carbon (?13C) and nitrogen (?15N) isotopes are used to investigate animal diets of nine local fauna (Camelidae, Cervidae, Caviidae, Chinchillidae, Cuniculidae, Leporidae, Felidae, Canidae, and Aves). Different taxonomic families were evaluated to explore the range of isotopic variation within and between these animals. Stable carbon and nitrogen isotopic values of both the wild and domesticated Kuelap faunal samples suggest a diet of both C3 and C4 plant foods. Significant dietary differences were identified between domesticated and wild animals (specifically camelid and cervid), suggesting ecological differences or strategic provisioning from possible domestic C4 crops (maize) by humans. The domesticated camelids displayed a large isotopic variation similar to other highland archaeological studies in Peru, with an average ?13C value of (-)14.13 ‰ and a standard deviation of 2.96. The cervids displayed lower variation than the camelids and had an average carbon value of (-)19.13 ‰ with a standard deviation of 2.38. These are the first faunal isotopic data for the eastern montane region of Chachapoyas and serve as an essential baseline in the evaluation of human subsistence strategies and animal management strategies in the northern Peruvian highlands.
Show less
Date Issued
2018
Identifier
CFE0007226, ucf:52237
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0007226