Tim H.E. Heaton

TL;DR: The results from two long-term experiments demonstrate that manuring significantly raises δ 15 N in cereal grain and chaff, and of charring on these cereal values, and indicates that human diets with a major component of such grain would conventionally be interpreted as indicating a largely animal-based diet or a mixed plant/animal diet.

TL;DR: Previously undescribed stable isotope determinations of charred cereals and pulses from 13 Neolithic sites across Europe show that early farmers used livestock manure and water management to enhance crop yields and suggest that commonly applied paleodietary interpretations of human and herbivore δ15N values have systematically underestimated the contribution of crop-derived protein to early farmer diets.

TL;DR: In this paper, the magnitude of the resulting variations in plant δ13C values, including the differences between species, and the variations at different spatial and temporal scales, are reviewed.

TL;DR: In this article, the impact of animal manure application on the δ15N values of a broad range of crops (cereals and pulses), under a range of manuring levels/regimes and at a series of locations extending from northwest Europe to the eastern Mediterranean, was explored.

TL;DR: In this article, the authors used time-series O isotope profiles for three U-Th dated stalagmites to show that for much of the Holocene, a site on the Atlantic seaboard (SW Ireland) exhibits first-order δ18O trends that are almost exactly out of phase with coupled δ 18O curves from two southern European sites (SE France and NW Italy).