Dietary Variation within the Andean Lizard Clade Proctoporus (Squamata: Gymnophthalmidae)

2008 ◽  
Vol 42 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Tiffany M. Doan
Keyword(s):  
Dietary Variation

Dietary variation of the stone marten (Martes foina): A meta-analysis approach

2014 ◽  
Vol 10 (2) ◽  
Author(s):  
Kyriaki Kitikidou ◽  
Malamati Papakosta ◽  
Dimitris Bakaloudis ◽  
Christos Vlachos
Keyword(s):  
Meta Analysis ◽  
Analysis Approach ◽  
Stone Marten ◽  
Martes Foina ◽  
Dietary Variation

scholarly journals Herbivore diets and the anthropogenic environment of early farming in southern Scandinavia

The Holocene ◽  
2016 ◽  
Vol 27 (1) ◽  
pp. 98-109 ◽  
Author(s):  
Kurt J Gron ◽  
Peter Rowley-Conwy
Keyword(s):  
Early Period ◽  
Bone Collagen ◽  
Early Neolithic ◽  
Human Influence ◽  
Domestic Species ◽  
Southern Scandinavia ◽  
Early Farming ◽  
Dietary Variation ◽  
Funnel Beaker Culture ◽  
Feeding Environments

Farming practice in the first period of the southern Scandinavian Neolithic (Early Neolithic I, Funnel Beaker Culture, 3950–3500 cal. BC) is not well understood. Despite the presence of the first farmers and their domesticated plants and animals, little evidence of profound changes to the landscape such as widespread deforestation has emerged from this crucial early period. Bone collagen dietary stable isotope ratios of wild herbivores from southern Scandinavia are here analysed in order to determine the expected range of dietary variation across the landscape. Coupled with previously published isotope data, differences in dietary variation between wild and domestic species indicate strong human influence on the choice and creation of feeding environments for cattle. In context with palynological and zooarchaeological data, we demonstrate that a human-built agricultural environment was present from the outset of farming in the region, and such a pattern is consistent with the process by which expansion agriculture moves into previously unfarmed regions.

scholarly journals Diet-Derived Variations in Radiocarbon and Stable Isotopes: A Case Study from Shag River Mouth, New Zealand

Radiocarbon ◽  
2005 ◽  
Vol 47 (3) ◽  
pp. 367-375 ◽  
Author(s):  
Thomas Higham ◽  
Atholl Anderson ◽  
Christopher Bronk Ramsey ◽  
Christine Tompkins
Keyword(s):  
New Zealand ◽  
River Mouth ◽  
Freshwater Species ◽  
Faunal Remains ◽  
Cultural Sites ◽  
Wide Range ◽  
Dietary Variation ◽  
Early Human ◽  
Dietary Food

Accelerator mass spectrometry (AMS) determinations of rat bones from natural and cultural sites in New Zealand have produced ages at odds with the accepted date for early human settlement by over 1000 yr. Since rats are a human commensal, this implies either an earlier visitation by people or problems with the reliability of the AMS determinations. One explanation for the extreme ages is dietary variation involving movement of depleted radiocarbon through dietary food chains to rats. To investigate this, we 14C dated fauna from the previously well-dated site of Shag River Mouth. The faunal remains were of species that consumed carbon derived from a variety of environments within the orbit of the site, including the estuary, river, land, and sea. The 14C results showed a wide range in age among estuarine and freshwater species. Terrestrial and marine organisms produced ages within expectations. We also found differences between bone dated using the Oxford ultrafiltration method and those treated using the filtered gelatin method. This implies that contamination could also be of greater importance than previously thought.

scholarly journals Novel tri‐isotope ellipsoid approach reveals dietary variation in sympatric predators

2019 ◽  
Vol 9 (23) ◽  
pp. 13267-13277 ◽  
Author(s):  
Christina Skinner ◽  
Aileen C. Mill ◽  
Steven P. Newman ◽  
Jason Newton ◽  
Matthew R. D. Cobain ◽  
...  
Keyword(s):  
Dietary Variation

scholarly journals Hydronephrosis in inbred strains of mice with particular reference to the BRVR strain

1973 ◽  
Vol 7 (3) ◽  
pp. 229-236 ◽  
Author(s):  
D. M. Taylor ◽  
H. Fraser
Keyword(s):  
Inbred Mouse ◽  
Inbred Strains ◽  
The Other ◽  
Mouse Strains ◽  
Inbred Mouse Strains ◽  
Concomitant Infection ◽  
Inbred Strains Of Mice ◽  
Dietary Variation

Hydronephrosis occurred in 6 of the 13 inbred mouse strains maintained in the same colony. Its incidence was high only in the BRVR strain, where about half of the cases could only be detected microscopically. There was no concomitant infection even in severely abnormal BRVR kidneys and the incidence of the condition was not influenced by dietary variation. The hydronephrosis found, less frequently, in 5 of the other strains was of a different type from that in BRVR mice.

Identifying Dietary Variability in Southern Australia from Scarce Remains

2016 ◽  
Author(s):  
Judith Littleton ◽  
Rachel Scott
Keyword(s):  
South Australia ◽  
Human Remains ◽  
Dietary Variability ◽  
Direct Observations ◽  
Dental Attrition ◽  
Dental Pathology ◽  
Close Proximity ◽  
Australian Archaeology ◽  
Dietary Variation ◽  
The Rich

Human remains are scarce in Australian archaeology, partly due to the nature of hunter-gatherer burials, as they are rarely found in concentrated numbers. These constraints have limited studies of diet, which have relied rather on the rich ethnographic and archaeological records. The relatively few direct observations of dental remains have emphasized the abrasive nature of the diet that caused a pattern of severe dental attrition, common in many hunter-gatherer groups. The results also point to variability between groups living in close proximity. To better understand the extent of dietary variation, we analysed the dental pathology and microwear features amongst two neighbouring groups of human remains in South Australia, examining the extent of heterogeneity within and between these populations. In doing so, we identified two potential confounders to analysis of diet from human dental remains: the nature of the sample itself and the extent of non-masticatory use of teeth.

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