Archaeobotany,vine growing and wine producing in Roman Southern France: the site of Gasquinoy (Béziers,Hérault)

Unequivocal evidence of Roman vine cultivation and wine making is provided from studies of combined archaeological remains from the site of Gasquinoy (Southern France). Waterlogged and charred plant material (fruits/seeds/wood) collected from wells located in the close vicinity of cultivated fields and wine making establishments confirms the local significance of this activity. The results offer insights on particular aspects of wine production (‘traumatic’ treading of grapes and straining) and provide evidence of secondary agricultural activities such as cereal production and fruit tree cultivation. The potential use of monocotyledonous stems such as Arundo/Phragmites in the farming system is discussed.     

Barley and identity in the Spanish colonial Audiencia of Quito: Archaeobotany of the 18th century San Blas neighborhood in Riobamba

Archaeological excavation of two late-18th century household middens in the San Blas parish of the colonial city of Riobamba resulted in the recovery of samples of archaeobotanical remains dating to the period before the AD 1797 destruction of the city in an earthquake. These seed remains were dominated by barley (Hordeum vulgare) and quinoa (Chenopodium quinoa). The dominance of these two grains in samples from artisans’ households in this marginal neighborhood suggests that we should question the assumption that imported Old World domesticates were associated with more elite houses during the Spanish colonial period in the Andes.     

Assessing natural variation and the effects of charring,burial and pre-treatment on the stable carbon and nitrogen isotope values of archaeobotanical cereals and pulses

The aim of this study is to assess the potential of charred archaeobotanical cereal grain and pulse seed δ¹³C and δ¹⁵N values to provide evidence of crop growing conditions and as a potential component of palaeodietary studies. In order to reliably interpret archaeobotanical δ¹³C and δ¹⁵N values it is necessary to take into account the impact of charring, burial and laboratory pre-treatment procedures. We examine the effects of charring and burial on bulk δ¹³C, δ¹⁵N, %C, %N and C:N ratios in modern cereal and pulse material, and of cleaning by acid–base–acid (ABA) pre-treatment on modern and archaeobotanical charred material. Our study utilised bulk grain and seed samples to help account for within-ear/pod and between-plant variability in δ¹³C and δ¹⁵N values. Heating at relatively low temperatures and for prolonged times (230 °C for up to 24 h) is conducive to the formation of well preserved, undistorted charred cereal grain and pulse seed. Heating for 24 h has a systematic and predictable effect on δ¹⁵N values, with increases of around 1‰ on average in cereal grains and pulse seeds, and no consistent impact on δ¹³C values. Increases in δ¹⁵N are likely due to the loss of lighter ¹⁴N via N-containing volatiles. Burial (for up to 2 years) and ABA pre-treatment have no significant effects on δ¹³C or δ¹⁵N values. After pre-treatment, however, the %C and %N contents of the archaeobotanical material more closely resembles that of the modern charred grains and seeds, suggesting that archaeobotanical remains accumulate non-structural material during burial but retain their original carbon and nitrogen content. Therefore %C, %N contents and C:N ratios can provide useful criteria for assessing archaeobotanical preservation.     

A charcoal-rich horizon at Ø69, Greenland: evidence for vegetation burning during the Norse landnám?

It is often assumed that the colonisation of Greenland by Norse settlers in c. A.D. 985 had a sudden and dramatic effect on the environment, involving substantial vegetation clearance and environmental degradation. Consequently, it has been argued that charcoal-rich horizons, visible in many sections in Greenland, represent the initial burning of the vegetation by Norse farmers to create land suitable for agriculture. In this study a charcoal-rich layer, visible in a modern drainage ditch beside the Norse farm of Ø69, was analysed using archaeobotany, sedimentary analysis and radiocarbon dating to test the date and formation processes of the horizon. It is demonstrated that the charcoal-rich layer at Ø69 was not derived from in situ vegetation burning in the 10th century and concluded that the layer was probably formed by the addition of midden material to the infields around Ø69 in the 13th and 14th centuries cal AD, perhaps as part of a soil amendment strategy. It is argued that caution must be exercised when interpreting charcoal-rich horizons as time-specific chronological markers in palaeoenvironmental sequences in Greenland.     

Differentiating banana phytoliths: wild and edible Musa acuminata and Musa balbisiana

Recent reports indicate that phytoliths may provide direct archaeological evidence of banana cultivation. However, archaeologists may, in many places, recover phytoliths generated by banana plants with quite different historical backgrounds. Hence the need for a differentiation among phytoliths produced by specific banana groups. The present paper discusses the morphometric distinction between phytoliths produced by the constitutive diploid species Musa acuminata and Musa balbisiana. Our study suggests that domestication of the banana, which was initiated at the diploid M. acuminata level, does not appear to have influenced phytolith morphometry.     

Variations in the C/C ratios of modern wheat grain, and implications for interpreting data from Bronze Age Assiros Toumba, Greece

Variations in the ¹³C/¹²C ratios of wheat grain at different spatial and temporal scales are examined by analysis of modern samples, including harvests of einkorn and durum wheat from Greece, and serve as a guide to interpreting data for Bronze Age grains from Assiros Toumba. The normal distribution and low variability of δ¹³C values of einkorn from 24 containers in the Assiros storerooms are consistent with pooling of local harvests, but less likely to represent the harvest of several years or include grain imported from further afield. Correlation between emmer and spelt δ¹³C values provides strong support for other evidence that these were grown together as a maslin crop. ¹³C discrimination (Δ) for the Bronze Age samples is estimated to be 2.5‰ larger than at present, and would be consistent with an intensive, horticultural regime of cereal cultivation, possibly involving some watering.     

Comparing seeds/fruits and pollen from a Middle Bronze Age pit in Florence (Italy)

The recovery of a Middle Bronze Age pit in Florence offered the opportunity of studying seeds/fruits and pollen coming from the pit fill layers. Both datasets resulted similar in their mixed composition of cultivated, synanthropic, and wild plants. They represent different traces coming from the plants which were stored and voluntarily or involuntarily introduced into the structure. Foodstuff and fodder storage activities are testified in the pit. Particularly, plant gathering is better represented by seed/fruit remains, while fodder procurement is mainly clarified by pollen. In this study, the use of pollen as evidence of economic activity is validated by the hypothesis that the origin of the pollen in the pit is from the stored plant material more than from the pollen rain. Therefore, comparing these datasets proved to be useful to assess the sources of the plant remains found in the pit, to interpret the origin of the fill layers and make some inferences on the structure and its uses, and to attempt some palaeoethnobotanical considerations.     

Fire and ritual: bark hearths in South-American Tupiguarani mortuary rites

High proportions of bark pieces (up to 85% of the charcoal content) were found in several hearths from Morro Grande archaeological site (Southeastern Brazil). This site, dated between 3220–2840 and 1820–1390 yrs cal BP, is associated to the Tupiguarani Tradition, attributed to supposed ancestors of Tupinambá native populations, who occupied the major part of the Brazilian coast in the XVIth century. Bark hearths, archaeologically associated with the mortuary ritual, were found encircling a funerary urn and associated with ceramic fragments painted with elaborated patterns in black, white, and red. Other hearths, spatially isolated from the funerary area, were associated to fragments of utilitarian non-painted ceramics and therefore attributed to domestic contexts. These ones presented few or no bark fragments. It is clear that bark was intentionally selected as fuel for the funerary hearths. Although bark is related, in historic accounts, as a specialized firewood for ceramics firing, its presence in ritual context has not been previously recorded. In this paper, the anthracological record is discussed in the light of ethnographic and historic accounts. A possible explanation for the presence of bark hearths in funerary context is proposed, suggesting it might be a symbolic parallel with the quotidian: the potency and power of transformation of bark as a fuel would be regarded in a spiritual level, achieving the transformation of the body soul in the revered soul – an Ancestor.     

Founder effect, drift, and adaptive change in domestic crop use in early Neolithic Europe

We document and quantify a significant reduction in crop diversity in the early central European Neolithic using a large multi-site database of archaeobotantical remains we compiled from published Neolithic sites across southwest Asia and Europe. Two hypotheses are proposed to account for the observed changes: one which claims that the different environmental conditions of central Europe selected for a different set of crop choices and strategies than in use in southeast and Mediterranean Europe; and a null hypothesis that explains the change as a drift process associated with a small founding population that subsequently undergoes rapid expansion. Through an agent-based simulation model, we test the null hypothesis and demonstrate that the drop in diversity exceeds that predicted by a drift process. We conclude by re-evaluating the possible adaptive changes underlying crop use in early Neolithic Europe.     

Plant-food preparation area on an Upper Paleolithic brush hut floor at Ohalo II,Israel

While a division of domestic space into separate sectors dedicated to different activities has been suggested for a number of Upper Paleolithic hunter-gatherer sites, it has never been demonstrated based on plant remains from this period. Moreover, due to the usual scarcity of plant macrofossils in archaeological deposits, only animal food preparation activities associated with hearths have been reported in the literature on Near Eastern prehistory. Ohalo II (Israel) is the first Upper Paleolithic site where such a patterned use of interior space and plant processing are evidenced by the distribution of plant remains on a sealed floor of a brush hut. This paper describes and interprets the distribution of almost 60,000 identified seeds and other plant remains on that floor, proposing a reconstruction of three activity areas in the interior of the 12-m² hut: processing of food centered on a grinding stone; a flint knapping area; and an access area in between. Finally, it is suggested that these activity areas might represent male-female division of labor.