ICR2-Artigos (em revistas ou actas indexadas)
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- Bell beaker footed bowls in the Iberian Peninsula: A trial inventory apropos a find from the Lapa do Fumo Cave (Sesimbra, Portugal)Publication . Cardoso, João Luis; Andrade, Marco António; Gil, RuiThe Lapa do Fumo cave (Sesimbra, Estremadura, Portugal) features a funerary context that has been extensively used since the Early Neolithic. A recent review of the votive assemblages revealed the presence of a vessel sherd belonging to a Bell Beaker footed bowl, featuring part of the base and the start of the foot, with incised decoration on the outer surface. This type of vessel, although quite rare, is known from various Bell Beaker complexes of the Iberian Peninsula throughout the entire time span of the Beaker phenomenon, mostly corresponding to the second half of the 3rd millennium BCE. Its geographical distribution in Iberia is equally widespread, occurring both in funerary and residential contexts. Starting from the Lapa do Fumo sherd presented herein, the authors will present an inventory of all known examples, integrating them into their respective chronological and cultural contexts. A technical and functional discussion is also included, based on an estimate of these items’ capacities.
- Microplastics hot spots at the South Iberian MarginPublication . Bebianno, Maria; Cristina, Sónia; Nathan, Justine; Goela, Priscila; Dias Duarte Fragoso, Bruno; Icely, John David; Moura, DelmindaThe persistent accumulation of microplastics (MPs) in sediments poses ecological risks to benthic organisms and contributes to the broader issue of marine pollution. This study quantitatively analysed MPs in sediments, water and mussels Mytilus galloprovincialis from eleven sites of the South Portuguese coast in two contrasting climatic seasons (summer and winter). MPs were detected in sediments, water, and M. galloprovincialis at all study sites, although their abundance, colour, size, and type varied across compartments, locations, and seasons. Three hot spots of MPs contamination were identified at the South Portuguese coast. In these areas, the concentration of MPs in sediments was three orders of magnitude higher than water and mussels. The MPs identified had distinct colour patterns: transparent particles dominated in sediments, while blue was the most common in water and mussels. A size-dependent accumulation pattern was observed in the sediments, suggesting selective retention of MPs according to natural particle size, and a relationship was observed between MP levels in sediments and in mussels. Polypropylene (PP) and polyethylene (PE) were dominant polymers in sediments while PP, PE and polyethylene terephthalate (PET) were consistently present in water and mussels. Polybuthyl methachrylate (PBMA) was also detected in surface water and ingested by mussels. These findings suggest that variability in MPs abundance and polymer composition is linked to differences in local human activities. They also provide strong evidence for the importance of controlling land-based sources of MPs, particularly those transported to the coastal area by transported by rivers.
- Living on the shores of the Alboran sea. The neolithic on the coast of Málaga (Spain) a multiproxy approachPublication . Simón-Vallejo, María D.; Lozano-Francisco, M. Carmen; Riquelme-Cantal, José A.; Macías-Tejada, Sara; Camuera, Jon; Uzquiano Ollero, Paloma; Sánchez Marco, Antonio; Garrido-Anguita, Juan M.; Jiménez-Espejo, Francisco; Parrilla-Giráldez, Rubén; Vera-Lozano, José A.; Vera-Peláez, José L.; Cortés-Sánchez, MiguelContext: The coast of Málaga is one of the core areas for the Neolithic in southern Iberia with the earliest occupations dating to the middle of the 8th millennium cal BP. From the outset, evidence shows a fully developed and highly diversified system of agriculture and animal husbandry. The palaeoenvironmental conditions during this period in the southern Iberian Peninsula reveal phases of aridity. Objectives: This study aims to understand how Neolithic communities adapted to these adverse environmental conditions. It also explores the role of wild resources and seasonal patterns in subsistence strategies. Methods: A multiproxy approach was applied, combining regional palaeoenvironmental data with archaeological, archaeofaunal, archaeobotanical and anthropological evidence. The analysis focuses on sites located near aquifer discharges. Results: Fully developed and highly diversified agriculture and herding practices are documented from the earliest Neolithic phases. The challenges posed by arid conditions appear to have been mitigated by settlement in areas linked to major aquifer outlets and by the cultivation of drought-resistant cereals. Multiple lines of evidence suggest a seasonal pattern of occupation, primarily from late autumn to early summer, when marine resources were likely exploited. Neolithic groups may have engaged in regular hunting and gathering activities or maintained interactions with local Epipalaeolithic–Mesolithic populations. Agricultural and pastoral management emerge as key factors for evaluating the contribution of wild resources to their subsistence. Conclusions: The integration of environmental, archaeological and biological records provides a more holistic perspective and better understanding of Neolithic economy and society along the Málaga coast between c. 7.6th—5th millennium cal BP, offering insights into subsistence strategies under arid conditions in a coastal setting.
- Snakes and ladders: a technological approach to tool maintenance byproducts using module flake categoriesPublication . Cabrita Nora, David André; Malinsky-Buller, Ariel; Gasparyan, Boris; Petrosyan, Artur; Frahm, ElleryThe study of retouching, reshaping, and rejuvenation in lithic technology has traditionally focused on finished tools, overlooking the byproducts of these processes, particularly microdebitage. This emphasis has led to an incomplete understanding of the dynamic behaviours associated with tool maintenance and a lack of crucial information about prehistoric technological strategies. In this study, we address this knowledge gap. Specifically, we introduce a classification system for lithic byproducts resulting from retouching, reshaping, and rejuvenation techniques, categorising them into five modules (M0 through M4) based on lithic technological analysis. This methodology integrates the chaîne opératoire approach to analyse flakes without size thresholds. To demonstrate our approach, we apply it to lithic assemblages from two Middle Palaeolithic sites in Armenia, Kalavan 2 and Ararat-1 Cave. This enables a precise reconstruction of tool use-life and, in turn, the maintenance strategies of Pleistocene hunter-gatherers. Our findings demonstrate that microdebitage (byproducts) can contribute to a holistic view of decision-making, revealing patterns in tool maintenance and raw material provisioning. The module system provides insights on ‘ghost tools’ i., e., tools that are no longer present in the archaeological record, as well as curation behaviours and economic decisions regarding raw materials that were previously difficult to discern. By shifting the focus from finished artefacts to byproducts, this framework enhances our ability to interpret lithic assemblages and understand the adaptive strategies of prehistoric hunter-gatherers.
- Infrastructure beyond cities: perspectives from the AmericasPublication . Henry, Edward R.; Ellis, Grace; DeSanto, Carly M.The study of infrastructure is becoming a common focus in research across the social sciences. In this endeavor, archaeologists are uniquely situated to assess how societies in the past created, and relied on, infrastructure over time, and the different ways it facilitated or impeded communication, movement, and social interaction through an understanding of the material record. However, most archaeological engagements with the study of infrastructure occur through case studies that closely mirror the modern contexts in which contemporary social scientists study infrastructure: within state-organized sociopolitical contexts or urban places. We use this article as an opportunity to review the literature on infrastructure, contextualize how it has been adopted in archaeology, and then advocate for expanding the study of infrastructure to non-urban small-scale societies. In doing so, we reassociate the notion of infrastructure with connective and cooperative human projects that unfold within and between places situated across social landscapes. This perspective requires one to divorce infrastructure from modernity and early urban projects and to recenter it within the material nature of human interaction. It is our goal to offer themes and perspectives drawn from contemporary notions of infrastructure to better understand the diverse forms and functions of built and natural environments apart from early urban places in the ancient Americas.
- Enhanced functional data retrieval from palaeolithic stone tools by lipid analysisPublication . Davara, Javier; Hernández, Cristo M.; Carrizo, Daniel; Herrera-Herrera, Antonio V.; Iriarte, Eneko; Mallol, CarolinaDespite the great potential of lipid biomarkers in archaeological science, their analysis in stone tools has been overlooked. The lipid retention capacity of Palaeolithic stone tools, along with the potential utility of the biomarkers they may harbour as a functional proxy, remains largely unknown. Here, we extracted lipid biomarkers from flint flakes and limestone pebbles from the Middle Palaeolithic site of El Salt (SE Spain) and analysed them using gas chromatography-mass spectrometry (GC-MS) and gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). Adjacent sediments were also analysed for comparison. We provide evidence that Palaeolithic stone tools preserve a diverse array of lipid biomarkers including fatty acids, n-alkanols, sterols and terpenoids, the analysis of which allowed us to determine whether the tools were used and/or hafted. The isotopic characterization of individual fatty acids preserved on tools’ working edges enabled us to identify lithic residues as fats resulting from the processing of ruminant animal species, or as lipids from non-ruminant animal and/or plant taxa. This introduces into functional studies a novel approach that adds taxonomic resolution and complements current techniques such as use-wear and micro-residue analyses. Our findings highlight the remarkable preservation potential of biomolecular remains within the Palaeolithic record and underscore the importance of exploring them in different kinds of materials and contexts.
- Bayesian inference of sex-specific mortality profiles and product yields from unsexed cattle zooarchaeological remainsPublication . Diekmann, Yoan; Gillis, Rosalind; Lu, Ziye; Rudzinski, Anna; Iorio, Maria De; Thomas, Mark G.Zooarchaeological age-at-death profiles for domesticated ruminants can be inferred from tooth eruption, replacement, and wear. These profiles contain important information on slaughter management and have been used informally to infer the goals of past husbandry strategies. In principle, sex-specific survival curves could inform on various productivity parameters, including herd growth rates and sustainability, milk and meat yields, macronutrient and calorie yields, and feed consumed. Knowledge of these parameter values would allow identification of differences in husbandry economics in different archaeological contexts. However, archaeological age-at-death profiles are rarely sex-specific and are often derived from small sample sizes. As such, challenges remain in inferring sex-specific survival curves using explicit models that account for sampling uncertainty. We present a Bayesian inference approach for inferring sex-specific survival curves from unsexed cattle zooarchaeological age-at-death profiles that can accommodate data from any combination of age class boundaries. Our approach relies on the assumption that asymmetric sex-specific slaughter leads to a change in sex ratio over time, which we inform from slaughter practices in modern unimproved cattle herds. By combining inferred sex-specific archaeological survival curves with ethnographic productivity data from modern unimproved cattle, we are able to estimate herd growth rate, milk and meat yields, macronutrient and calorie yields, and feed consumed per animal. We apply our approach to zooarchaeological age-at-death profiles previously proposed to prioritise milk or meat production and to a set of profiles from ten Neolithic sites located across Europe. We infer that there was scope for improvement in prehistoric slaughter management.
- Early oldowan technology thrived during pliocene environmental change in the Turkana Basin, Kenya.Publication . Braun, David R.; Palcu Rolier, Dan V.; Advokaat, Eldert L.; Archer, Will; Baraki, Niguss G.; Biernat, Maryse D.; Beaudoin, Ella; Behrensmeyer, Anna K.; Bobe, René; Elmes, Katherine; Forrest, Frances; Hammond, Ashley S.; Jovane, Luigi; Kinyanjui, Rahab N.; de Martini, Ana P.; Mason, Paul R D.; McGrosky, Amanda; Munga, Joanne; Ndiema, Emmanuel K.; Patterson, David B.; Reeves, Jonathan S.; Roman, Diana C.; Sier, Mark J.; Srivastava, Priyeshu; Tuosto, Kristen; Uno, Kevin T.; Villaseñor, Amelia; Wynn, Jonathan G.; Harris, John W. K.; Carvalho, SusanaApproximately 2.75 million years ago, the Turkana Basin in Kenya experienced environmental changes, including increased aridity and environmental variability. Namorotukunan is a newly discovered archaeological site which provides a window into hominin behavioral adaptations. This site lies within the upper Tulu Bor and lower Burgi members of the Koobi Fora Formation (Marsabit District, Kenya), presently a poorly understood time interval due to large-scale erosional events. Moreover, this locale represents the earliest known evidence of Oldowan technology within the Koobi Fora Formation. Oldowan sites, older than 2.6 million years ago, are rare, and these typically represent insights from narrow windows of time. In contrast, Namorotukunan provides evidence of tool-making behaviors spanning hundreds of thousands of years, offering a unique temporal perspective on technological stability. The site comprises three distinct archaeological horizons spanning approximately 300,000 years (2.75 − 2.44 Ma). Our findings suggest continuity in tool-making practices over time, with evidence of systematic selection of rock types. Geological descriptions and chronological data, provide robust age control and contextualize the archaeological finds. We employ multiple paleoenvironmental proxies, to reconstruct past ecological conditions. Our study highlights the interplay between environmental shifts and technological innovations, shedding light on pivotal factors in the trajectory of human evolution.
- From stone to tool: how raw materials influenced upper palaeolithic technology in southwestern Iberia (Vale Boi)Publication . Belmiro, Joana; Bicho, Nuno; Terradas, Xavier; Cascalheira, JoãoThe Upper Palaeolithic (UP) of westernmost Europe was marked by technological and cultural transformations and abrupt climatic shifts. The Iberian Peninsula, particularly southwestern Iberia, served as a refugia and key eco-cultural niche, making it a key region for UP studies. Vale Boi, the only site in southwestern Iberia with a nearly complete UP sequence, provides critical insights into technological, economical and mobility patterns over time. This study examines lithic raw material procurement and technological organisation at Vale Boi, focusing on the differences between local and non-local cherts. We analysed chert assemblages from Gravettian, Proto-Solutrean, and Solutrean levels, integrating previously published techno-typological and raw material macroscopic and petrographic data. Our results indicate that non-local cherts were intensively reduced. The presence of varied techno-typological classes suggests that non-local cherts were not exclusively transported as finished tools, instead highlighting their role as versatile, transportable raw material volumes. Gravettian occupations exhibited greater reliance on non-local cherts, suggesting short-term occupations and higher mobility, while Proto-Solutrean and Solutrean occupations showed increased dependence on local materials, suggesting long-term occupations. These findings expand our understanding of UP technological adaptations in southwestern Iberia, emphasising the complex role of lithic resources in mobility, settlement, and social networks.
- The primates of gorongosa national park, MozambiquePublication . Carvalho, Susana; Anemone, Robert L.; de Oliveira Coelho, João; Bobe, RenéThis contribution is an introduction to and synthesis of the special issue of the AJBA on Primate Adaptations in a Highly Seasonal and Heterogeneous African Ecosystem. The eight research papers in this special issue provide the first compilation of primatological research to emerge from Gorongosa National Park and represent a major landmark in the development of primatology as a science in Mozambique. Primatological field studies in the park were initiated in 2016 under the umbrella of the Paleo-Primate Project Gorongosa with the aim of exploring the deep time evolutionary history of the Gorongosa ecosystem and establishing a long-term primatological field research program. This initiative has resulted in the training of a new generation of primatologists, including the first from Mozambique. The papers in this volume focus on the behavior, ecology, adaptations, and genomics of baboons and vervet monkeys, and set the stage for the study of other primates in Gorongosa, including samango monkeys and nocturnal strepsirrhines. The environmental characteristics of the Gorongosa ecosystem, with major rivers and lakes in a dynamic mosaic of forests, woodlands, wetlands, and grasslands, and rich biodiversity, make Gorongosa a suitable analog for the environments in which early hominins are thought to have evolved. This special issue is dedicated to the memory of our dear friend and colleague Dr. Marc Stalmans, who was the Director of Science of Gorongosa National Park from 2012 to 2025.