Lydia Zapata

Holocene environmental change and human impact in NE Morocco: Palaeobotanical evidence from Ifri Oudadane

The littoral site of Ifri Oudadane is one of the most important recently excavated sites in the Mediterranean Maghreb. The shelter presents Epipalaeolithic and Neolithic layers and therefore offers the possibility to investigate the Neolithic transition in the region. Besides introducing the archaeological context, this paper focuses on palaeobotanical data in order to reconstruct Holocene environmental change and human use of plant resources for the period c. 11 to 5.7 ka cal. BP. Results show intense landscape transformations resulting from anthropic and climatic factors. First human occupations start at the beginning of the Holocene with favourable conditions in this otherwise harsh semi-arid stretch of land. A wooded environment with evergreen sclerophyllous oaks and riparian forests is documented and exploited by hunter-gatherers. From c. 7.6 ka cal. BP farming activities are well attested together with significant human impact, herding pressure and a progressive decline of arboreal components. After 6.6 ka cal. BP conditions become less favourable and markers for aridity increase. Riparian taxa disappear (Alnus) or decrease (Fraxinus, Populus, Salix); shrubs (Tamarix) and grasses (Artemisia) increase with a degradation of forest into shrubland (macchia). During 6.6 and 6.0 ka cal. BP there is a general occupation gap in arid and semi-arid Morocco and evidence for that change is also found in the alluvial deposits of the Moulouya, NE Morocco. Indicators for food production decrease at the same time and the site is abandoned during the first half of the 6th millennium cal. BP.

Ethnobotany of millet cultivation in the north of the Iberian Peninsula

Having found Setaria italica (foxtail millet) and Panicum miliaceum (broomcorn millet) still being cultivated traditionally in the north of the Iberian Peninsula, we carried out ethnographic interviews with farmers to help us document an agricultural process on the verge of extinction. Crop processing of S. italica and P. miliaceum varies depending on the use of either plant. In Asturias, Setaria italica is harvested while green and used as fodder. In Galicia and in the north of Portugal, P. miliaceum grain is used mainly for human consumption. This distribution of millet in the north of the Iberian Peninsula appears to have been the case in prehistory too, although this will need to be confirmed by future research.

Squaring the circle. Social and environmental implications of pre-pottery neolithic building technology at Tell Qarassa (South Syria).

We present the results of the microstratigraphic, phytolith and wood charcoal study of the remains of a 10.5 ka roof. The roof is part of a building excavated at Tell Qarassa (South Syria), assigned to the Pre-Pottery Neolithic B period (PPNB). The Pre-Pottery Neolithic (PPN) period in the Levant coincides with the emergence of farming. This fundamental change in subsistence strategy implied the shift from mobile to settled aggregated life, and from tents and huts to hard buildings. As settled life spread across the Levant, a generalised transition from round to square buildings occurred, that is a trademark of the PPNB period. The study of these buildings is fundamental for the understanding of the ever-stronger reciprocal socio-ecological relationship humans developed with the local environment since the introduction of sedentism and domestication. Descriptions of buildings in PPN archaeological contexts are usually restricted to the macroscopic observation of wooden elements (posts and beams) and mineral components (daub, plaster and stone elements). Reconstructions of microscopic and organic components are frequently based on ethnographic analogy. The direct study of macroscopic and microscopic, organic and mineral, building components performed at Tell Qarassa provides new insights on building conception, maintenance, use and destruction. These elements reflect new emerging paradigms in the relationship between Neolithic societies and the environment. A square building was possibly covered here with a radial roof, providing a glance into a topologic shift in the conception and understanding of volumes, from round-based to square-based geometries. Macroscopic and microscopic roof components indicate buildings were conceived for year-round residence rather than seasonal mobility. This implied performing maintenance and restoration of partially damaged buildings, as well as their adaptation to seasonal variability.

Storage in traditional farming communities of the western Mediterranean: Ethnographic, historical and archaeological data

Abstract This paper presents ethnographic, historic and archaeological data from the western Mediterranean in order to explore the variability of storage methods and the various strategies that may have existed in the past in this region. The paper includes ethnographic information on traditional storage methods collected in farming communities in northern Morocco (Rif area). We record the use of plant fibres such as canes (Arundo donax), dwarf palm (Chamaerops humilis), esparto grass (Stipa tenacissima) and dis (Ampelodesmos mauritanica) to make containers. Recipients made of cow dung and unfired clay, as well as underground silos, have been also used in this region to store food. In addition, we explore historical and ethnohistorical data on the use of large storage structures, including the study of communal granaries, a particular type of granary located at inaccessible places, such as cliff faces or mountain tops, or within fortified buildings, from which harvests can be easily protected and defended. We also examine the archaeological evidence of storage strategies in the Iberian Peninsula during prehistoric times. The paper informs of the large variety of systems and materials used, the functioning of storage structures, and more generally, provides a framework for reflecting on the enormous diversity of solutions that could have existed in the past and that may have left little or none archeological traces.

Crop husbandry activities and wild plant gathering, use and consumption at the EPPNB Tell Qarassa North (south Syria)

The Early Pre-Pottery Neolithic B (EPPNB) in southwest Asia is a fundamental period in research on the origins of domesticated plants. However, there are few archaeobotanical data with which to characterise the plant-based subsistence and crop husbandry activities during this time, which hinders the understanding of the factors that triggered the appearance of plant domestication. In this paper, analyses of non-woody plant macro-remains provide new insights into subsistence activities such as crop cultivation (husbandry activities and storage) and plant use (wild plant gathering and food preparation) during the EPPNB at Tell Qarassa North (south Syria). We make comparisons between Tell Qarassa North and the evidence at earlier and later periods as to how plants were used, and highlight similarities and differences in the practices attested, as well as describing some of the consequences that these plant-related activities may have had in terms of labour and social organization during EPPNB.

Regional diversity on the timing for the initial appearance of cereal cultivation and domestication in southwest Asia

Significance Recent studies show that cultivation of wild and domesticated plants was a protracted process that developed across southwest Asia. However, there have not been sufficient data to evaluate whether cereal cultivation and domestication developed in parallel in all the regions or at different times. Our findings indicate that cultivation of wild cereal forms during Pre-Pottery Neolithic A was common only in specific regions such as the southern-central Levant. Domesticated-type cereal chaff (>10%) is found in southern Syria around 10.7–10.2 ka Cal BP but appears around 400–1,000 y later in the other regions. Regionally diverse plant-based subsistence during the Pre-Pottery Neolithic could have contributed to (if not caused) chronological dissimilarities in the development of cereal cultivation and domestication in southwest Asia. Recent studies have broadened our knowledge regarding the origins of agriculture in southwest Asia by highlighting the multiregional and protracted nature of plant domestication. However, there have been few archaeobotanical data to examine whether the early adoption of wild cereal cultivation and the subsequent appearance of domesticated-type cereals occurred in parallel across southwest Asia, or if chronological differences existed between regions. The evaluation of the available archaeobotanical evidence indicates that during Pre-Pottery Neolithic A (PPNA) cultivation of wild cereal species was common in regions such as the southern-central Levant and the Upper Euphrates area, but the plant-based subsistence in the eastern Fertile Crescent (southeast Turkey, Iran, and Iraq) focused on the exploitation of plants such as legumes, goatgrass, fruits, and nuts. Around 10.7–10.2 ka Cal BP (early Pre-Pottery Neolithic B), the predominant exploitation of cereals continued in the southern-central Levant and is correlated with the appearance of significant proportions (∼30%) of domesticated-type cereal chaff in the archaeobotanical record. In the eastern Fertile Crescent exploitation of legumes, fruits, nuts, and grasses continued, and in the Euphrates legumes predominated. In these two regions domesticated-type cereal chaff (>10%) is not identified until the middle and late Pre-Pottery Neolithic B (10.2–8.3 ka Cal BP). We propose that the cultivation of wild and domesticated cereals developed at different times across southwest Asia and was conditioned by the regionally diverse plant-based subsistence strategies adopted by Pre-Pottery Neolithic groups.

Evidence for Early Crop Management Practices in the Western Mediterranean: Latest Data, New Developments and Future Perspectives

This paper summarizes results from the AGRIWESTMED project focusing on the characterization of the first agriculture through the study of the available archaeobotanical data and including information from new sites. Detailed information on the particular features of the crop assemblages studied for each period is followed by a thorough discussion on regional patterns. These are addressed within the context of crop diversity by exploring different issues that may have accounted for such variability. The paper draws attention to the different agricultural traditions encountered in the Iberian Peninsula during the Neolithic and explores contacts with other regions and possible routes of arrival. Finally, a model of agricultural evolution during the early phases of the Neolithic in Iberia is presented.

A palaeoenvironmental and palaeoeconomic approach to the Early Middle Age record from the village of Gasteiz (Basque Country, Northern Iberian Peninsula).

An integrated archaeobotanical study carried out in the medieval village of Gasteiz (Basque Country, Northern Iberian Peninsula) was able to establish a diachronic view of the evolution of the vegetal landscape, the plant economy and the forest management in this rural community between the 8th and 12th centuries ad, through the study of seeds, fruits, firewood, pollen, spores and non-pollen palynomorphs. The main results show the presence of an anthropogenic vegetal landscape, shaped by the economic activities of the inhabitants of the village, based on cereal crops, legumes and animal husbandry. Also new data are provided about forest management related to metallurgical activities.

Fuelwood, crops and acorns from Iritegi cave (Oñati, Basque Country)

Abstract We present the analyses of plant macroremains from Iritegi, a cave from Northern Iberia with archaeological levels dated from the Chalcolithic to the Iron Age. Wood charcoal assemblages are dominated throughout the sequence by Fraxinus. Other important taxa are Quercus subg. Quercus, followed by Corylus avellana, Fagus sylvatica, Ilex aquifolium, Taxus baccata and Ulmus. Acer, Alnus and Maloideae occur in very low numbers. The high percentages of Fraxinus are possibly result from the selection of ash for fodder. Evidence for the use of crops (Hordeum vulgare, Triticum aestivum/durum) comes only from the Chalcolithic contexts. The identification of acorns in one Chalcolithic hearth shows that roasting of these nuts was taking place maybe to improve taste and to facilitate further processing or to improve storage conditions. The results show that plant food gathering still played a role within the subsistence of farming human groups in the region.

The use of wild plants in the Palaeolithic and Neolithic of Northwestern Africa: preliminary results from the PALEOPLANT project

This contribution presents preliminary results from PALEOPLANT, a European Research Council (ERC) multidisciplinary research project that focuses on the analyses of plant remains from Palaeolithic and Neolithic sites in North Africa. The project aims are to: (1) characterize wild plant exploitation among human communities; (2) refine current knowledge on past landscapes; and (3) improve archaeological methodology and fieldwork when studying plants. We discuss preliminary results from charred plant macroremains (wood, seeds and fruits) and plant microfossils (phytoliths and calcitic ash pseudomorphs), as well as dung spherulites recorded in several northwestern African sites spanning the Late Pleistocene to the Early-Middle Holocene (c. 33 to 2 ka BC). Charcoal assemblages indicate the presence of mixed oak/juniper woodlands during the Late Pleistocene while conifers become the dominant element of the vegetation during the transition from Late Glacial to Early Holocene. In these contexts, some of the main species of thermo- and meso-Mediterranean Holocene landscapes (Olea europaea, Pistacia, etc.) were already present but their spread occurred during the Middle Holocene, concurrently with Neolithic occupations. The combination of wood charcoal, other plant macroremains (seeds and fruits) and plant microfossils, including both plant and dung indicators, provide new insights not only into the presence of a wide range of plant resources (wild pulses, Ziziphus lotus, Pinus halepensis, Quercus sp., Stipa tenacissima and Chamaerops humilis) but also on the variability of their potential uses (including fuel, food, fiber, bedding, fodder). Archaeobotanical results suggest continuity in the use of wild plants during the Neolithic. In addition, wood charcoal assemblages reflect significant changes that occurred in plant composition including the expansion of thermo-Mediterranean species.