Phases Of Occupation Research Articles

Shrub cover declined as Indigenous populations expanded across southeast Australia.

Wildfires in forests globally have become more frequent and intense because of changes in climate and human management. Shrub layer fuels allow fire to spread vertically to forest canopy, creating high-intensity fires. Our research provides a deep-time perspective on shrub fuel loads in fire-prone southeastern Australia. Comparing 2833 records for vegetation cover, past climate, biomass burning, and human population size across different phases of human occupation, we demonstrated that Indigenous population expansion and cultural fire use resulted in a 50% reduction in shrub cover, from approximately 30% from the early to mid-Holocene (12 to 6 thousand years ago) to 15% during the late to mid-Holocene (6 to 1 thousand years ago). Since the start of British colonization to the present, shrub cover has increased to the highest ever recorded (mean of 35% land cover), increasing the risk of high-intensity fires.

Incidence of type 2 diabetes by occupation – 10-year follow-up of the Gutenberg Health Study

Abstract Background In order to implement targeted type 2 diabetes (T2D) prevention measures for the workplace, it is important to identify high-risk occupations. Most previous studies examine the association between T2D and occupation cross-sectionally, but longitudinal studies are missing. This study aims to investigate the 10-year incidence of T2D in the working population of a German cohort and identify occupations with an increased risk. Methods Data from the population-based Gutenberg Health Study (GHS) were used to examine occupation at baseline (2007-2012) and T2D incidence at the 10-year follow-up. Occupational phases were coded into categories according to the KldB 2010. T2D was defined as either a physician-diagnosed T2D, HbA1c-level ≥6.5% or use of antidiabetic drugs. Age- and sex-standardised incidence and 95% confidence intervals (CI) were calculated for occupational groups based on the age- and sex-distribution of the German population. Standardised incidence ratios (SIR) and 95% CI were calculated using the incidence in the total GHS working population as the reference. Results Of 8130 workers at baseline, 45.2% were female, the mean age was 48.4 years and 4.5% had prevalent T2D. 388 cases occurred between baseline and the 10-year follow-up within the subgroup of persons without prevalent T2D at baseline and with follow-up data (n = 5954). The standardised incidence was 6.9%. “Food production and processing” (20.7%), “cleaners” (16.5%) and “drivers and mobile plant operators” (14.8%) had the highest standardised incidences. Compared to the total working population, we observed a threefold increased SIR for employees in “food production and processing” (3.0, 95% CI 1.8-4.7) and a two times higher SIR for “cleaners” (2.2, 95% CI 1.0-4.7) and “drivers and mobile plant operators” (2.2, 95% CI 1.3-3.3). Conclusions We identified occupations with an increased risk of T2D. Preventive measures and etiological research on work-related risks should focus on these occupations. Key messages • The highest standardised incidence was observed in the occupational groups “food production and processing”, “cleaners” and “drivers and mobile plant operators”. • Targeted prevention measures for type 2 diabetes in the workplace should focus on these occupational groups with increased incidence.

Foragers Downstream of Mapungubwe: the Cultural Sequence and Chronology of Skirbeek Shelter, South Africa

ABSTRACT In recent decades, interest in the Later Stone Age of the Mapungubwe region has increased. Here, we present the results of an investigation from a shelter downstream from Mapungubwe called Skirbeek. The shelter is in a sandstone koppie (tor) adjacent to another that was occupied in the 19th century a.d. by a Venda community. Radiocarbon results show three primary occupation phases in the mid-Holocene, final millennium b.c., and mid–late 2nd millennium a.d. The most intensely occupied phase was before ca. a.d. 750 prior to the arrival of herders, possibly, and farmers. There are several continuities and other discontinuities between these periods. Quartz dominates assemblages in each period, as do small end scrapers, but artifact and faunal frequencies vary. We compare these findings to those made in the Mapungubwe region and argue that Skirbeek represents a similar Later Stone Age phase. More generally, it appears largely consistent with Wilton assemblages defined in South Africa’s Cape zone rather than the Amadzimba and Bambata (or Ceramic Matopan) Industries found in Zimbabwe.

Biowarfare against the Nazis: the ethics, efficacy and consequences of a forgotten operation by the Czech resistance in the Second World War

This article investigates a little-known instance of biological warfare in the Czech lands during the first phase of the Nazi occupation in 1939–1940. The authors analyse the case in terms of the motivations, the related ethical challenges, strategies and tactics. Using archival materials, for the first time, they describe in detail the activities of the so-called Vignati group, a part of the broader Czech resistance organisation Obrana národa. Strategically, these activities were an attack against German military and civilian targets, but the objectives were not reached tactically because the biological agents used proved ineffective.

Magnetic signature of deep pit ovens from Paquimé, ceremonial center of the Casas Grandes culture (Northern Mexico)

The Casas Grandes culture in Northern Mexico and Southwest United States has been characterized by its impressive architecture - unique to desert cultures, with houses and constructions of up to four floors built by adobe. In this study, we report an integrated rock-magnetic and archaeomagnetic study from Paquimé archaeological site, considered as an outstanding testimony of the relationship between the cultures of North America and Mesoamerica. The In Situ structures of Paquimé archaeological zone were magnetically analyzed for the first time. Four up to 2.6 m deep Pit Ovens, commonly used for agave cooking, were sampled. 78 specimens were subjected to stepwise alternating field demagnetizations to retrieve characteristic remanence archaeodirections. The great majority of samples yielded evidence of essentially stable, single component remanent magnetization carried by the end members of titanomagnetite solid solutions (almost magnetite phase). Hematite grains apparently also co-exist, but their contribution in total thermoremanence is minor. The archaeomagnetic dating, based on mean declination and inclination, was performed using the global geomagnetic models and the available regional Paleosecular Variation Curves available for Mesoamerica. Additionally, SW United State paleosecular variation patterns from Four Corner region was also considered. The most probable age interval for one of the studied ovens (around 940 AD) is out of Paquimé’s main occupation phase between 1200 and 1450 AD. The age estimation for the PH1 pit oven, around 1150 AD, could be located near the limit of the beginning of the Medio Period. Remained two analyzed ovens yielded up to three possible ages distributed around 1100, 1320 and 1480 AD. Pit Ovens studied here, were long time considered to correspond to same time interval, while these new results attest that these combustion structures encompassed almost six centuries in agreement with the historical fact that the city of Paquimé was abandoned before the arrival of the Spaniards.

Hunting with poisoned arrows during the Terminal Pleistocene in Northern Europe? A tip cross-sectional area assessment and list of potential arrow poison ingredients

The lithic projectile points of the Late Upper Palaeolithic (∼14.7–11.7 ka BP) in Northern Europe display a marked variation in size and design. The small tanged points characteristic of the latest phase in the sequence can be directly associated with finds of arrow-shafts and bow fragments, benchmarking the presence of archery. In the absence of such organic evidence during the older phases, size differences between tip designs may be used, with reference to ballistic principles, to derive hypotheses about ancient weapon systems. By calculating tip cross-sectional area values for a large sample of shouldered, backed, and tanged points from sites across the Northern Europe, we here explore likely changes in weapon use through time. In this context we specifically investigate the likelihood of the smallest of these tips as having been used with poison to increase hunting success. Our results show that: (i) bow-and-arrow technology most likely was in use already during the earliest phases of human occupation in the region; (ii) later on, different weapon systems equipped with different tip designs were used in parallel; and (iii) the smallest of lithic armatures align well with ethnographically documented poisoned arrows. To assist with future studies in the use of arrow poisons in Europe, we provide a list of potential poison sources, where they are currently distributed in the context of our study area.

Site Settlement Patterns During MIS 3 in the Southeast of France: the Lithic Assemblages of Two Phases of Occupation (Levels 4.1 and 4.2) at the Abri du Maras

Site Settlement Patterns During MIS 3 in the Southeast of France: the Lithic Assemblages of Two Phases of Occupation (Levels 4.1 and 4.2) at the Abri du Maras

North and South in Medieval Iberia: A historical and environmental estimate through isotopic analyses.

The Middle Ages in the Iberian Peninsula is a period of special interest for studying the relationship of climate change with historical and socioeconomic processes. Between the 8th and 15th centuries AD, the Peninsula was characterized not only by complex political, cultural, and social transitions but also by major variations in the climate. The objective of this study was to examine differences in diet and mobility between distinct populations of the Peninsula and explore the possible relationship of diet, mobility, and culture with environmental variables and geographical settings. For this purpose, we obtained stable isotopic ratios of carbon and oxygen (δ13C and δ18O) from the enamel apatite of first upper incisors from 145 individuals at eight archeological sites that represent both Christian and Islamic communities and both rural and urban social settings. Results revealed a dietary difference between Christian and Islamic populations, observing a greater contribution of C4 plants, possibly sorghum, in the diet of the latter, especially in a rural setting. The disparity in oxygen isotopic ratios between populations from the North and South of the Peninsula is consistent with modern climatic differences between these regions. In this line, intraregional variability in oxygen isotopic ratios may hint at diachronic occupation phases under varying climatic conditions. The few isotopic outliers in our sample suggest overall low mobility levels.

Living in the shore: changes in coastal resource intensification during the Mesolithic in northern Iberia

Recent research on human exploitation of molluscs, echinoderms and crustaceans during the Mesolithic in the Cantabrian region (northern Iberia) has shown significant variability in the intensity of the use of coastal resources by the last hunter-fisher-gatherers throughout the ~ 4000-year expanse of the Mesolithic (10,700 – 6,700 cal BP). Previous studies have proposed hypotheses related to demographic changes to explain intensification events. In this paper we aim to unravel whether climatic and environmental changes, or other social factors, such as demography, were involved in the increase in the use of marine resources at certain times. We employed species representation, quantification and biometric analysis of the shell assemblages from the El Toral III archaeological site (Asturias, northern Iberia) to identify patterns in shell exploitation throughout the stratigraphic sequence. To establish the chronology and distinguish occupation phases of the site, we employed Bayesian modelling of radiocarbon measurements. Faunal results show that marine gastropods such as limpets of the Patella genus and topshells Phorcus lineatus (da Costa, 1778) were the most exploited species, while bivalves, echinoids and crustaceans were present in smaller quantities. The comparison of the results for El Toral III with other Mesolithic sites in the region reveals significant temporal differences in the intensity of collection of marine shell species. Results showed that intensification processes are not clearly related to climate change but to other social factors, such as demography, suggesting that intensification and relaxation in shell collection events were strategies adopted depending on the needs of the human groups at different times.

Through Time: Reconstructing Palaeolithic Occupations Through Use-Wear Analysis in the Middle Palaeolithic Site of Ciota Ciara (Borgosesia, Italy)

Lithic use-wear analysis, through defining site function and allowing reconstructing of patterns of human occupation, can contribute to our understanding of archaeological palimpsests. The Ciota Ciara cave represents an excellent case study for this methodology. Multidisciplinary research so far conducted on the materials recovered from the atrial sector of the cave distinguishes three archaeological units from a Middle Palaeolithic occupation of the site: stratigraphic units (SUs) 13, 14, and 15. Each unit is interpreted as referring to a period of numerous, superimposed episodes of human occupation, the characteristics of which we try to reconstruct and present in this work through use-wear studies. The functional analysis of lithic industries from the upper units (13 and 14) has already been published previously; here, we report corresponding new data from the lowest level, SU 15. By comparing the use-wear results from the three units and integrating the findings with data from the geoarchaeological, palaeontological, zooarchaeological, and technological studies, we attempt to reconstruct the different phases of human occupation represented in the site through time, contributing to current interpretations regarding settlement dynamics and human behaviour in the Middle Palaeolithic of north-western Italy.

Environmental conditions in the Massif Central during the Upper Palaeolithic using stable isotope tracking (13C, 15N) of bone collagen from large herbivores

ABSTRACTThe environmental conditions experienced by hunter‐gatherers during the second part of the Upper Palaeolithic (ca. 28 000–15 000 cal bp) are poorly known in the mid‐elevation volcanic mountains of the Massif Central in southern France. The stable isotope ratios of carbon and nitrogen (13C/12C and 15N/14N expressed as δ13C and δ15N values) in bone collagen of large herbivores can track their diet and habitat, reflecting local abiotic conditions (temperature, aridity, altitude). Due to poor preservation of skeletal organic matter in the region, new radiocarbon dating was conducted on a limited number of quality‐controlled collagen samples, based on a minimum carbon content of 30%. They document three main phases of occupation corresponding to the Final Gravettian, the Badegoulian and the Magdalenian, each of which is represented in different regions of the Allier and Loire valleys. Over time, a decrease in horse δ15N values, the best documented species of large herbivores, is found between the Final Gravettian (ca. 26 700–25 600 cal bp), around the Last Glacial Maximum and the Badegoulian (ca. 21 900–19 200 cal bp), followed by an increase in δ15N and δ13C values during the Magdalenian (ca. 19 100–16 600 cal bp). During the Badegoulian, the δ15N values of the horses were lower than those of their counterparts in southwestern France, testifying to harsh climatic conditions favourable to a tundra‐like landscape, also reflected in the higher horse and reindeer δ13C values in the Allier valley compared to those in southwestern France. The relatively high δ13C and low δ15N values of a Final Gravettian wolf from the Allier valley suggests reindeer as a preferred prey, in line with their high abundance in the archaeological sites. Game access, rather than climatic conditions or lithic resources, seems to have motivated human groups to occupy the Massif Central during the Upper Palaeolithic.

A multi-proxy geochemical and micromorphological study of the use of space and stratigraphy of a Viking-age house in Ribe, Denmark

High-definition approaches are currently revolutionizing our understanding of the archaeology of urban archives. Multi-proxy studies at a high spatial resolution offer especially an opportunity to capture their high data potential. Here we present a study of complex floor layers from an occupation phase dating to c. AD 790–830 uncovered in the Viking-age emporium Ribe, Denmark (c. AD 700–900). In order to better understand stratigraphy and the use of indoor space, mapping for soil geochemistry (portable X-ray fluorescence analysis, pXRF) on a high-resolution grid (0.25 × 0.25 m, n = 1059), was combined with targeted sampling for soil micromorphology and artefact distributions. The results show that the studied occupation phase was composed of several short-lived floor phases belonging to two consecutive houses that had been sampled in conjunction, and which exhibited a complex stratigraphy. The older house phase had a primarily domestic function, where ten functional areas could be defined, and are interpreted as designated spaces for food preparation, storage, sitting or sleeping, and weaving. A younger house phase contained a metal workshop in addition to domestic functions. Methodologically, a number of new, potentially anthropogenic, elements of archaeological interest, such as arsenic, manganese and sulfur, were identified that may contribute to interpretations, while the multi-proxy approach elucidates the refined scale at which we can understand a complex stratigraphic sequence and the integrity of its units. This study shows how the various aspects of Viking-age urban life (craft production, domestic life) were integrated, and sheds light on the dynamics of urban occupation.

Geochemical study of a Neolithic metallurgical site, Le Planet (France): Detection of paleopollution recorded in archaeological soils

A geochemical study was carried out at the metallurgical site of Le Planet (Fayet, Aveyron), situated in the south of France. The site dates from the 3rd millennium BC, and is one the oldest copper smelting metallurgical sites known in France. The site reveals numerous phases of occupation, all dated from the Late Neolithic. The geochemical study of the site aimed at identifying the signature of the metallurgical activities in the archaeological soils and their spatial distribution. The analyses were carried out by X-ray fluorescence (p-XRF). Two main sampling methods were used. The first, grid-based method, allowed the sampling of the totality of the archaeological excavation surface. The second sampling method aimed to study the vertical distribution of the trace elements in the stratigraphic sequence. Four vertical profiles, positioned throughout the site, allowed a high-resolution sampling of the totality of the stratigraphy, which permitted to identify the stratigraphic distribution of polluted archaeological horizons. The geochemical analyses reveal the importance of the pollution due to the prehistoric metallurgical activities, mainly of lead, copper and arsenic. For instance, the measured values of lead vary between 26 and 9831 ppm. These values for copper are between 53 and 1154 ppm, whereas for arsenic they vary between 35 and 258 ppm. The metallurgical furnaces seem to constitute the main hotspots for the spatial distribution of the pollution. The geochemical study of the profiles identifies two main polluted archaeological horizons, and thus allows having a better understanding of the stratigraphic extension of horizons containing geochemical traces of metallurgical activities.

Spatio-temporal variations of climate along possible African-Arabian routes of H. sapiens expansion

Eastern Africa and Arabia were major hominin hotspots and critical crossroads for migrating towards Asia during the late Pleistocene. To decipher the role of spatiotemporal environmental change on human occupation and migration patterns, we remeasured the marine core from Meteor Site KL 15 in the Gulf of Aden and reanalyzed its data together with the aridity index from ICDP Site Chew Bahir in eastern Africa and the wet-dry index from ODP Site 967 in the eastern Mediterranean Sea using linear and nonlinear time series analysis. These analyses show major changes in the spatiotemporal paleoclimate dynamics at 400 and 150 ka BP (thousand years before 1950), presumably driven by changes in the amplitude of the orbital eccentricity. From 400 to 150 ka BP, eastern Africa and Arabia show synchronized wet-dry shifts, which changed drastically at 150 ka BP. After 150 ka BP, an overall trend to dry climate states is observable, and the hydroclimate dynamics between eastern Africa and Arabia are negatively correlated. Those spatio-temporal variations and interrelationships of climate potentially influenced the availability of spatial links for human expansion along those vertices. We observe positively correlated network links during the supposed out-of-Africa migration phases of H. sapiens. Furthermore, our data do not suggest hominin occupation phases during specific time intervals of humid or stable climates but provide evidence of the so far underestimated potential role of climate predictability as an important factor of hominin ecological competitiveness.

Staple or delicacy: Sea urchin exploitation over the last 40,000 years at Makpan Cave, Alor Island

Sea urchins are consumed in many parts of the world today. Human consumption of these marine invertebrates can be traced back to at least the Late Pleistocene in various archaeological sites from Island Southeast Asia. Makpan Cave, on Alor Island in Indonesia, is one of the earliest Wallacean prehistoric sites with an occupation record beginning ∼43,000 years ago. Coastal resources (i.e., shellfish, barnacle, crab, and sea urchin) play a dominant role in the subsistence strategy at this site, with urchins important throughout all occupation phases. In this study, we used three different quantification methods (weight, NISP, and MNI) to analyze the over 13 kg of sea urchin remains recovered from Makpan. Our analysis showed that sea urchins were collected during the initial occupation period, when other coastal resources were sparsely utilized. This indicates that sea urchins were intentionally targeted rather than being the result of subsidiary foraging during shellfish collection. The quantity and consistency of sea urchin exploitation at Makpan indicates that urchin was considered a staple food, especially during the initial phase of occupation. We hypothesize that a focus on sea urchins may have been a key strategy for the colonization of novel environments by the earliest human settlers in the region.

Abbasid Jumeirah, Dubai. An Overview of the Site and Its Architectural Stucco Decoration

Jumeirah (Dubai) is one of the most important sites for the understanding of the Abbasid period in eastern Arabia. At the same time, it is severely understudied and the small number of publications available on the subject situates Jumeirah on the margins of academic debate about the region in the Islamic period. This paper aims to prompt discussion on Jumeirah by presenting an overview of the site, a summary of archaeological research and a preliminary study of the typology of stucco decorations. Some issues regarding problems with the reconstructions and renovations of the buildings are also raised. The study of stuccoes contributes to a better understanding of the site’s chronology, indicating its main phase of occupation to the Abbasid period and the possible existence of an earlier, pre-ninth or early ninth century phase.

Living in the Lower Town at Kınık Höyük (Niğde). Preliminary Report on the 2021-2022 Campaigns in Anatolia

Excavations at the site of Kınık Höyük have brought to light over the past twelve years several occupational phases dated to the first Millennium BCE both on the acropolis and in the lower town, especially for the Middle Iron Age and the Hellenistic period. Since 2021 the University of Firenze joined the University of Pavia (Italy), NYU-ISAW (USA) and Dokuz Eylül University in Izmir (Turkey) in the excavations at the site of Kınık Höyük, and since 2022 the same university took over in the management of the project. This article is a preliminary report on recent excavations area D2-3, located in the lower town, where archaeologists could identify six phases of occupation and two large primary contexts dated to the beginning of the Middle Iron Age, that provide new insights on every-day assemblages and inventories produced locally and the architectural and archaeological context they are related to. The most interesting element in terms of urban layout and structure is related to the construction of the massive defensive fortification of the lower town, that seems to be related so far to the earliest occupation of the Iron Age lower town, i.e. possibly at the end of the Early Iron Age. A selection of the materials and a detailed report on deposits and architecture provides the reader with the archaeological data collected mainly in the campaign 2022 and 2021 in the lower town excavations, while a general overview on the urban fortification of the acropolis allows a general picture of the whole settlement defensive system and space organisation.

Radiocarbon dates from Curaçao’s oldest Archaic site extend earliest island settlement to ca. 5700 cal BP

Due to its proximity to coastal South America and settlement during the early phase of insular Caribbean occupation, Curaçao’s archaeological record offers potential evidence for early overwater exploration and regional interaction. Here, we report new accelerator mass spectrometry (AMS) dates on charcoal from C-1426 at Saliña Sint Marie, an Archaic rockshelter site that extends Curaçao’s occupation back to 5735–5600 cal BP, some 290–850 years earlier than the established settlement chronology. This finding makes the C-1426 rockshelter Curaçao’s earliest known archaeological site and among the oldest in the insular Caribbean. We describe the site and the archaeological context of dating and conclude by considering the implications of Curaçao’s revised occupation chronology for initial Caribbean settlement.

Early human occupation of Australia’s eastern seaboard

Secure archaeological evidence for human occupation on the eastern seaboard of Australia before ~ 25,000 years ago has proven elusive. This has prompted some researchers to argue that the coastal margins remained uninhabited prior to 25 ka. Here we show evidence for human occupation beginning between 30 ± 6 and 49 ± 8 ka at Wallen Wallen Creek (WWC), and at Middle Canalpin Creek (MCA20) between 38 ± 8 and 41 ± 8 ka. Both sites are located on the western side of Minjerribah (North Stradbroke Island), the second largest sand island in the world, isolated by rising sea levels in the early Holocene. The earliest occupation phase at both sites consists of charcoal and heavily retouched stone artefacts made from exotic raw materials. Heat-treatment of imported silcrete artefacts first appeared in sediment dated to ~ 30,000 years ago, making these amongst Australia’s oldest dated heat-treated artefacts. An early human presence on Minjerribah is further suggested by palaeoenvironmental records of anthropogenic burning beginning by 45,000 years ago. These new chronologies from sites on a remnant portion of the continental margin confirm early human occupation along Sahul’s now-drowned eastern continental shelf.

Redefining “Collapse” in the Early Bronze Age: New Evidence for Recovery, Resilience, and Societal Transformation at Khirbat Iskandar, Jordan

Abstract This paper provides a new perspective on the long-debated issue of “collapse” at the end of the urban Early Bronze Age III (EB III, traditionally ca. 2300 BCE) in the southern Levant. In the past, the facts on the ground – manifesting the classic characteristics of a devastating collapse (destruction/abandonment) at the end of EB III – appeared to be followed by a rural “dark age” or “pastoral-nomadic” interlude in Early Bronze IV (EB IV), also known as the Intermediate Bronze Age (IBA). The “dark age” then ended upon the regeneration of urbanism after 2000 BCE in the Middle Bronze Age (MBA). This conceptualization of dramatic culture change in the Early Bronze Age has dominated the scholarly literature since the mid-20th century, bolstered by the widespread acceptance of evolutionary theories on the collapse of nations and civilizations. Current theoretical constructs on collapse look to the post-collapse period for insights on the process itself. A post-collapse urban-to-rural process, documented by nine continuous occupational phases at the EB III/IV transition, has recently come to light at Khirbat Iskandar, Jordan. This archaeological profile suggests strong local resilience in the aftermath of collapse, evident in the maintenance of traditions and social memory of settled life at the ancestral home. This adaptive cycle militates against traditional “collapse” modeling positing an apocalyptic break in Early Bronze Age civilization; instead, it resonates with resilience and resilience theory. Moreover, a plethora of new evidence has accumulated illuminating a type of “rural complexity” witnessed by a considerable database of EB IV permanent, multi-phased agricultural settlement sites belying the so-called pastoral-nomadic interlude rubric. Applying the construct of societal transformation, the hypothesis driving this research is that archaeological stratification at Khirbat Iskandar supports a process of recovery, resilience, and societal transformation, a reevaluation particularly apropos when contextualized in the new higher Early Bronze Age chronology.