Percorrer por autor "Haws, Jonathan"
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- An iberian perspective on upper paleolithic plant consumptionPublication . Haws, JonathanDavid Clarke, in his essay "mesolithic Europe: the economic basis" (1976), challenged the " meat fixation" of archaeologists and highlighted the potential for intensive plant use in Europe prior to the introduction of agriculture. He argued that plants likely made up 60-80% of the diet of prehistoric hunter-gatherers in Europe. Indeed,ethnographically known hunter-gatheres in temperate regions incororate such percentages of plants in their diet (Kelly, 1995). The only area where meat completely dominates is the Artic, where the lack of edible plants during much of the year leaves little choice. Even in this extreme, people are known to eat the contents of reindeer stomachs and exchange meatfor seaweed with coastal peoples (Clark, 1952).
- Experimental protocol for cooking rabbits and its archaeological implicationsPublication . Real, Cristina; Rufà, Anna; Carvalho, Milena; Pérez, Leopoldo; Haws, Jonathan; Sanchis, AlfredSmall prey such as rabbits are present in Middle Paleolithic and are abundant in the diet of Upper Paleolithic human groups in southwestern Europe, especially in the Iberian Peninsula. Several archaeological and experimental studies have attempted to relate anthropogenic modifications, in this case cut marks, to different processing and consumption activities. However, the data do not always give similar results, as the presence and quantity of cut marks is variable across time, geography, and anatomical elements. Therefore, the lack of clear answers forces us to hypothesize if these variations could be indicative of the choice of particular cooking, processing, and consumption patterns, including the aim of preserving the meat by drying or smoking. The first objective is to present an empirical methodology to resolve uncertainties about the processing and consumption patterns adopted by human groups in different temporal and geographical contexts. The second objective is to characterize the cut marks found on the bones and relate them to a cooking method. To achieve these objectives, the paper presents a complete experimental protocol. This protocol included three cooking methods (drying, smoking, roasting) that could have been used by Paleolithic human groups when processing rabbits. The results of these experiments are then analyzed in terms of time, weight loss, and the condition of the meat and marrow. Following this, the first results of the taphonomic study focusing on the cut marks identified on the experimental bones are reported. In addition, we critically review other experimental studies focusing on rabbits and compare their results with our own in order to present a comprehensive framework and discuss their archaeological implications.
- Faunas mamalógicas do Neolítico antigo do Maciço Calcário Estremenho: análise preliminar de dados recentesPublication . Carvalho, António Faustino; Valente, Maria João; Haws, JonathanOs contextos arqueológicos em território português contam ainda com poucos estudos arqueozoológicos, situação que se torna muito evidente quando aplicada ao neolítico antigo. Mesmo no caso da Estremadura Portuguesa, região comummente considerada como objecto de ampla investigação arqueológica, apenas a Gruta do Caldeirão, em Tomar, e o Abrigo da Pena d’Água, em Torres Novas, revelaram restos faunísticos deste período em quantidades minimamente significativas (sobretudo o primeiro), tendo sido objecto de análise e publicação próprias (Rowley-Conwy, 1992 e Davis, 2002; e Valente, 1998, respectivamente). Dado o carácter ainda muito exíguo dos dados arqueozoológicos disponíveis para o estudo do processo de neolitização da Estremadura, os resultados de recentes intervenções arqueológicas em dois contextos do Neolítico antigo do Maciço Calcário Estremenho tornam-se importantes pelo seu contributo para esta questão, apesar das fortes limitações de ordem tafonómica que afectam as respectivas colecções faunísticas.
- First results of a Middle Stone Age survey in the Kerma region, northern SudanPublication . Bicho, Nuno Gonçalo Viana Pereira Ferreira; Haws, Jonathan; Honegger, MatthieuSudan is a vitally important region for understanding the migrations of Anatomically Modern Humans from the African continent. Here, the authors present the results of a preliminary survey in the Kerma region, during which, 16 new Middle Stone Age sites were discovered.
- Human adaptive responses to climate and environmental change during the Gravettian of Lapa do Picareiro (Portugal)Publication . Haws, Jonathan; Benedetti, Michael; Carvalho, Milena; Ellis, Grace; Pereira, Telmo; Cascalheira, João; Bicho, Nuno; Friedl, LukasOn the Iberian Peninsula, abrupt climate shifts during the Late Pleistocene impacted human and natural systems. Our knowledge of human adaptive responses to these climatic perturbations has improved in recent years with the development of new radiocarbon techniques that have increased the temporal resolution of cultural chronologies. At the same time, new high-resolution paleoclimatic records from Greenland ice cores, deep-sea sediment cores, speleothems, and microfaunal assemblages have permitted detailed paleoenvironmental reconstructions. Combined with the archaeological record of culture change, these data sets allow for a better understanding of the nature of human socio-ecological systems during the Late Pleistocene. Here we present new data on the Gravettian occupations at Lapa do Picareiro, a cave site in Portugal with a long continuous stratigraphic sequence spanning MIS 3 and 2. The ongoing excavation of Lapa do Picareiro has revealed at least three Gravettian levels with very different patterns of raw material use and technological reduction. The Early Gravettian levels contain a quartzite flake assemblage with several refitting clusters and a small chert assemblage with nosed endscrapers and bladelet technology. The Late or Terminal Gravettian level contains carinated endscraper/core-bladelet technology, mainly quartz, with chert blade production, and a few bone tools. The faunal assemblages also have a different character. Both contain a similar range of medium and large ungulates but the earlier Gravettian has a much richer and more diverse assemblage of small animals. These combined archaeological data sets provide a new perspective on Gravettian human adaptations in response to climate shifts, especially Heinrich Event 3 and Greenland Interstadials 4 and 3.
- Lapa do Picareiro (Alcanede, Portugal): análisis traceológico de los materiales líticos de los niveles F/GPublication . Gibaja, Juan Francisco; Bicho, Nuno Gonçalo Viana Pereira Ferreira; Haws, Jonathan; Hockett, BryanLapa do Picareiro (Cueva de Picareiro) está situado al noroeste de Lisboa, cerca de la ciudad de Fátima, en la Serra d’Aire (Figura 1). La cueva, que se localiza a 540 metros de altitud, muestra una morfología triangular, un alto techo y una entrada de aproximadamente 10´8 metros (Figura 2). Debajo de la línea del goteo aparece un cono marcado por la presencia de grandes bloques de piedra caliza, formando uno pasillo abierto de entre 3 y 5 metros de ancho entre la línea del goteo y la boca de la cueva. La entrada se abre dirección norte-noreste y tiene cerca de 5 metros de anchura y un máximo de 1.2 metros de altura (Bicho et al. , 2003; 2006a). Las excavaciones arqueológicas se iniciaron en 1994 con la limpieza de un corte estratigráfico realizado por Gustavo Marques en los años 50 (Marques y Andrade, 1974). En 2001 finalizan los trabajos de campo iniciados en 1996 con motivo de los proyectos dirigidos por N. Bicho: “A Ocupação Humana Paleolítica do Algarve” y “ A importância dos recursos aquáticos no Paleolítico do Algarve (Portugal)” (Bicho et al. , 2003). Durante estos años se excavan unos 35 m2 con una profundidad de 4.5 metros.
- Late neanderthal subsistence and foraging mobility at Lapa do Picareiro: a zooarchaeological and taphonomic analysis of Level JJPublication . Carvalho, Milena; Haws, Jonathan; Jones, Emily LenaRecent revisions of Neanderthal behavioral models call into question the notion of inflexible subsistence strategies. Here, we present new zooarchaeological and taphonomic data from Level JJ at Lapa do Picareiro (Portuguese Estremadura), dating to ∼51.5–42.5 ka cal BP, to evaluate Neanderthal prey selection, mobility, and adaptive responses to climatic fluctuations during MIS 3. Our zooarchaeological and taphonomic analysis of macro-mammalian faunal assemblages—divided into three stratigraphic subunits—reveals a consistent emphasis on red deer exploitation, supplemented by occasional hunting of ibex, chamois, aurochs, and horse. Despite paleoenvironmental disturbances associated with Heinrich Stadial (HS) 5, the stable abundance and processing of red deer indicate that these key resources remained reliable, supporting a localized foraging territory estimated at 225–400 km². In contrast, the lithic record shows a shift in raw material procurement before and after the climatic event, suggesting adaptive technological responses. Overall, our findings imply that Neanderthals at Picareiro employed brief, intermittent site occupations while maintaining resilient, regionally adapted subsistence and mobility strategies in the face of environmental variability.
- Late Pleistocene Landscape and Settlement Dynamics of Portuguese EstremaduraPublication . Haws, Jonathan; Benedetti, Michael; Funk, Caroline L.; Bicho, Nuno; Pereira, Telmo; Marreiros, Joao; Daniels, J. Michael; Forman, Steven L.; Minckley, Thomas A.; Denniston, Rhawn F.Here we report the results of an integrated geoarchaeological survey to study Palaeolithic human settlement dynamics in the coastal region of Portuguese Estremadura. The region has been an important focus of human occupation across multiple glacial-interglacial cycles, including periods of well-documented abrupt climate instability during MIS 3 and 2. The pedestrian survey covered a roughly 10 km wide strip of land between Sao Pedro de Muel and Peniche. The survey intensively targeted three landscape settings with Pleistocene-age surfaces and sediments: the coastal bluffs with exposed aeolian, fluvial, and colluvial sands; the Caldas da Rainha diapiric valley and associated fluvial/estuarine fills; and, Cretaceous chert-rich limestone uplands that bound the inland margin of the study area. We discovered dozens of new Palaeolithic sites, analyzed numerous Pleistocene sedimentary sections, and applied widespread OSL-dating to establish age control that allowed us to build a regional geomorphic history to contextualize Late Pleistocene human settlement across the region.
- Linking the karst record to atmospheric, precipitation, and vegetation dynamics in PortugalPublication . Thatcher, Diana L.; Wanamaker, Alan D.; Denniston, Rhawn F.; Ummenhofer, Caroline C.; Regala, Frederico T.; Jorge, Nuno; Haws, Jonathan; Chormann, Alaina; Gillikin, David P.Cave deposits can be valuable sources of paleoclimate data, especially when atmospheric circulation patterns, precipitation variability, vegetation changes, and the chemical evolution of waters moving through the karst environment can be mechanistically linked to speleothem proxies. In particular, an evaluation of the factors that control the isotopic composition of precipitation and the evolution of rainwater during migration from the land surface to the cave are needed to robustly develop speleothems as hydroclimate-sensitive proxies. One area in which precipitation and atmospheric variability are closely linked is western Iberia, where rainfall is strongly influenced by the Azores High, part of the North Atlantic Oscillation (NAO) dipole. Therefore, in order to better characterize the factors that influence the isotopic composition of precipitation in Portugal and to evaluate the potential of using stalagmites from this region as hydroclimate (and NAO-sensitive) proxies, we investigated Global Network of Isotopes in Precipitation (GNIP) data from ten mainland Portugal sites spanning multiple decades. In addition, we use more than one hydrologic year of precipitation amount and isotope data from Buraca Gloriosa (BG), a cave in western Portugal, the site of on-going speleothem analyses, as well as six years of environmental monitoring from BG. We present an integrated analysis of rainfall and vegetation through the normalized difference vegetation index (NDVI) following extremely wet and dry winters. Summer vegetation density, related to the amount of precipitation in the preceding winter wet season, as well as prior calcite precipitation (PCP), would largely control the stable carbon isotopic signature (delta C-13) in stalagmites at BG. Cool season recharge is likely the dominant factor for the oxygen isotopic composition (delta O-18) of water percolating through the cave system, while amount effects exert the primary control on precipitation delta O-18 values. Based on HYSPLIT modeling, moisture sources overwhelmingly originate from the Atlantic Ocean as opposed to the Mediterranean or elsewhere
- Mapping the stone age of MozambiquePublication . Gonçalves, Célia; Raja, Mussa; Madime, Omar; Cascalheira, João; Haws, Jonathan; Matos, Daniela; Bicho, Nuno Gonçalo Viana Pereira FerreiraUnder the auspices of the Portuguese colonial government, Lereno Barradas and Santos Junior (coordinator of the Anthropological Mission of Mozambique) carried out several archaeological field surveys from 1936 to 1956 that resulted in a data set that includes a total of close to 90 sites, mostly attributed to the Stone Age. This early research added to the previous work of Van Riet Lowe in the Limpopo Valley of southern Mozambique. With the new millennium, Mozambique has emerged as a crucial geographic area in which to understand the various hypotheses about recent human evolution. Specifically, its coastal location between southern and eastern Africa is ideal for testing ideas about the link between early coastal adaptations and the appearance of anatomically modern humans (AMH). Except for the recent work by Mercader's team in northern Mozambique, the number of researchers and projects on this topic in Mozambique is still limited because of the general predominance of interest in later periods among archaeologists working in the country, mainly due to their focus on issues related to precolonial heritage and national identity. Based on the early maps from Santos Junior and more recent data acquired through various projects, we present a series of maps for the Stone Age prehistory of Mozambique. The maps are also based on a critical evaluation of the sites and a review of some of the materials that are presently curated at the Instituto de Investigacao Cientifica e Tropical (IICT) in Lisbon, Portugal, as well as the materials stored at the Department of Archaeology of Universidade Eduardo Mondlane, Maputo. The sites are also presented in an online database with the information on all sites used in this study. This database is open to all and will be updated continuously. A preliminary interpretation of the regional distribution of the sites is also attempted, linking aspects that include region, topography and altitude, geomorphology, and cultural phase. These results will be the first step for research and knowledge in Mozambique on Stone Age prehistory and the emergence and settlement pattern of AMH.