Between Monoculture and Cultural Polarization: Agent-based Models of the Interplay of Social Influence and Cultural Diversity

Social influence is one of the most important processes in human social interaction. Very often in human social interaction, influence is assimilative in that individuals become more similar to others they interact with. Nevertheless, cultural differences continue to remain in many realms of human life, for example, in the form of technological boundaries. Research on social influence points to a range of possible reasons for persistent cultural diversity, but there is much less clarity about the interplay of various factors and conditions for cultural influence with fundamental processes of social interaction at the micro-level. In this article, I show how agent-based computational modeling can be used as an approach for unraveling the complex interplay between simple first principles of interpersonal social interaction and emergent societal outcomes. I give a brief overview illustrating some of the main approaches agent-based modelers have developed in recent decades to understand conditions and processes of the emergence of cultural diversity. Models will be discussed that generate mainly cultural consensus as long-term behavior, but also models that generate clustering of cultural attitudes in geographical or social space, and models that imply cultural polarization with sharp cultural boundaries between emergent factions. It will be discussed how model dynamics depend on further assumptions, for example about random events, or the scaling of cultural attitudes, and what are further developments in the literature, possible future directions and challenges for the application of computational agent-based modeling in archeological research on cultural boundaries.     

A Comprised Archaeological History of Taiwan through the Long-Term Record of Heping Dao,Keelung

We present the results of six years of archaeological work carried out in Heping Dao, Keelung, northern Taiwan. The site has revealed a rich archaeological record spanning a sequence that comprehends most of the history of Taiwan, including the most salient historical landmarks in it. The study of this long-term sequence of habitation in Heping Dao throughout prehistory to current times, allows us to attempt a historical archaeology of the longue duree of the place that in turn enables the establishment of comparisons between periods and raising of specific questions, among them: the general understanding of cultural transformation along the Neolithic and the Iron Age, and in turn the transition Iron Age/Aboriginal historic times in Taiwan, which in our view has to be observed as a history of continuity rather than of interruptions; the recognition of the Chinese presence in Taiwan in the pre-European period; the implantation of the European colony and its effects on the local populations; the differing material remains and impacts caused by the presence of pre-European Chinese and the Qing occupation; and the potential for a comparison between the European and the Japanese colonial projects as seen in the material record.     

Security,ethnicity, nationalism

Using Slavic examples, the article looks at the nationalism/security nexus present today between the birth of ethnicities (early middle ages) and the birth of nationalism (eighteenth century). I discuss how Slavic ethnicity emerged in Greek and Roman security thinking. Others were classified in terms of ethnoi and were then interpellated into this self‐understanding. If ethnicity is an identity for the Other, then nationalism is an identity for the Self. It becomes a security concern not to order the Other polity's identity, as did the Byzantines, but to see to it that groups that may threaten your own nationalism – minorities, imperial subjects – cannot embrace nationalism. The policy of denying nationhood to minorities must be understood amongst other things as security policy. The organic understanding of the nation as young and vital demonstrates a third interstice between security and nationalism. If the young and vital nation is to grow and expand at the expense of the old and tired, then the polity that represents itself as a young and vital nation is by dint of that representation alone a security threat against those that they represent as old and tired. Finally, I discuss how this theme is played out in today's Russia     

Early Cretaceous polar biotas of Victoria,southeastern Australia—an overview of research to date

Poropat, S.F., Martin, S.K., Tosolini, A.-M.P., Wagstaff, B.E, Bean, L.B., Kear, B.P., Vickers-Rich, P. &; Rich, T.H., May 2018. Early Cretaceous polar biotas of Victoria, southeastern Australia—an overview of research to date. Alcheringa 42, 158–230. ISSN 0311-5518.

Although Cretaceous fossils (coal excluded) from Victoria, Australia, were first reported in the 1850s, it was not until the 1950s that detailed studies of these fossils were undertaken. Numerous fossil localities have been identified in Victoria since the 1960s, including the Koonwarra Fossil Bed (Strzelecki Group) near Leongatha, the Dinosaur Cove and Eric the Red West sites (Otway Group) at Cape Otway, and the Flat Rocks site (Strzelecki Group) near Cape Paterson. Systematic exploration over the past five decades has resulted in the collection of thousands of fossils representing various plants, invertebrates and vertebrates. Some of the best-preserved and most diverse Hauterivian–Barremian floral assemblages in Australia derive from outcrops of the lower Strzelecki Group in the Gippsland Basin. The slightly younger Koonwarra Fossil Bed (Aptian) is a Konservat-Lagerstätte that also preserves abundant plants, including one of the oldest known flowers. In addition, insects, crustaceans (including the only syncaridans known from Australia between the Triassic and the present), arachnids (including Australia’s only known opilione), the stratigraphically youngest xiphosurans from Australia, bryozoans, unionoid molluscs and a rich assemblage of actinopterygian fish are known from the Koonwarra Fossil Bed. The oldest known—and only Mesozoic—fossil feathers from the Australian continent constitute the only evidence for tetrapods at Koonwarra. By contrast, the Barremian–Aptian-aged deposits at the Flat Rocks site, and the Aptian–Albian-aged strata at the Dinosaur Cove and Eric the Red West sites, are all dominated by tetrapod fossils, with actinopterygians and dipnoans relatively rare. Small ornithopod (=basal neornithischian) dinosaurs are numerically common, known from four partial skeletons and a multitude of isolated bones. Aquatic meiolaniform turtles constitute another prominent faunal element, represented by numerous isolated bones and articulated carapaces and plastrons. More than 50 specimens—mostly lower jaws—evince a high diversity of mammals, including monotremes, a multituberculate and several enigmatic ausktribosphenids. Relatively minor components of these fossil assemblages are diverse theropods (including birds), rare ankylosaurs and ceratopsians, pterosaurs, non-marine plesiosaurs and a lepidosaur. In the older strata of the upper Strzelecki Group, temnospondyl amphibians—the youngest known worldwide—are a conspicuous component of the fauna, whereas crocodylomorphs appear to be present only in up-sequence deposits of the Otway Group. Invertebrates are uncommon, although decapod crustaceans and unionoid bivalves have been described. Collectively, the Early Cretaceous biota of Victoria provides insights into a unique Mesozoic high-latitude palaeoenvironment and elucidates both palaeoclimatic and palaeobiogeographic changes throughout more than 25 million years of geological time.

Stephen F. Poropat*? [sporopat@swin.edu.au; stephenfporopat@gmail.com], Faculty of Science, Engineering and Technology, Swinburne University of Technology, John St, Hawthorn, Victoria 3122, Australia; Sarah K. Martin*? [sarah.martin@dmirs.wa.gov.au; martin.sarahk@gmail.com] Geological Survey of Western Australia, 100 Plain St, East Perth, Western Australia 6004, Australia; Anne-Marie P. Tosolini [a.tosolini@unimelb.edu.au] and Barbara E. Wagstaff [wagstaff@unimelb.edu.au] School of Earth Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia; Lynne B. Bean [lynne.bean@anu.edu.au] Research School of Earth Sciences, Australian National University, Acton, Canberra, Australian Capital Territory 2001, Australia; Benjamin P. Kear [benjamin.kear@em.uu.se] Museum of Evolution, Uppsala University, Norbyvägen 16, Uppsala SE-752 36, Sweden; Patricia Vickers-Rich§ [prich@swin.edu.au; pat.rich@monash.edu] Faculty of Science, Engineering and Technology, Swinburne University of Technology, John St, Hawthorn, Victoria 3122, Australia; Thomas H. Rich [trich@museum.vic.gov.au] Museum Victoria, PO Box 666, Melbourne, Victoria 3001, Australia. *These authors contributed equally to this work. ?Also affiliated with: Australian Age of Dinosaurs Museum of Natural History, Lot 1 Dinosaur Drive, PO Box 408, Winton, Queensland 4735, Australia. ?Also affiliated with: Earth and Planetary Sciences, Western Australian Museum, Welshpool, Western Australia 6101, Australia. §Also affiliated with: School of Earth, Atmosphere and Environment, Monash University, Melbourne, Victoria 3800, Australia.     

Determining the Provenance of Cayo Pottery from Grenada,Lesser Antilles,Using Portable X‐Ray Fluorescence Spectrometry

Portable XRF was used to analyse the chemical composition of 52 indigenous Cayo ceramics from excavations and from private collections on Grenada, Lesser Antilles. Initially, a comparative baseline of data representing three different islands (Grenada, St Vincent and Trinidad) was created by analysing with pXRF ceramic material that had previously been analysed both chemically and petrographically. The field data, when compared to the laboratory baseline data, indicated that the majority of the ceramics were made with clay local to Grenada. Four samples were potentially made with clay from another, as yet unidentified, source.     

Digital Technology in Research and Documentation of Hunter-Gatherer Rock Art in South Africa

The use of digital technology to enhance and manipulate photographs of rock paintings affords researchers insights into imagery that was formerly invisible or obscure. Image enhancement and manipulation software have greatly increased the data set available for study. There is a wide range of techniques available in the digital repertoire, depending on the aim of the research. Here, three South African case studies are discussed in which hunter-gatherer rock paintings are enhanced and manipulated to create digital “tracings” using the computer programmes Adobe Lightroom, Adobe Photoshop and DStretch. The results obtained with these simple techniques are presented here, because they might prove useful for rock art research elsewhere in the world. It must be noted, however, that these technological developments do not eliminate the subjective nature of recording and interpreting rock art or the necessity of a theoretical framework in which to understand the imagery.     

Early North African Cattle Domestication and Its Ecological Setting: A Reassessment

Nearly four decades have passed since an independent North African centre for cattle domestication was first proposed in 1980, based on the Combined Prehistoric Expedition’s work in the Nabta Playa—Bir Kiseiba region of southern Egypt, and the initial rigorous debates between Andrew B. Smith and Fred Wendorf, Romuald Schild and Achilles Gautier. More recently, geneticists have entered the fray with determinations on the spread of haplotypes, and the timing thereof, that extend the scope and increase the complexity of the debate. Here, a new look at the botanical data and a re-analysis of the geology of Bir Kiseiba–Nabta Playa rejects the ecological foundations of the early African domestication model, while a detailed examination of the published osteological and radiometric data from the same area reveals a more nuanced picture than has been recognised to date. These results are placed into context by a wider review of the genetic and other archaeological evidence from the Western Desert of Northeast Africa, where no other cattle remains designated as domesticated have been found. It is concluded that (a) Bos remains from the early Holocene at Nabta Playa—Bir Kiseiba were those of hunted aurochs; (b) domesticated caprines were likely present in Northeast Africa before domesticated cattle; and (c) the domesticated cattle spreading across Northeast and northern Africa, including Nabta Playa—Bir Kiseiba, from the late seventh millennium BC or early sixth millennium BC onwards were descendants of Bos taurus domesticated in the Middle Euphrates area of the Middle East.     

Humans in the Environment: Plants,Animals and Landscapes in Mesolithic Britain and Ireland

Environmental archaeology has historically been central to Mesolithic studies in Britain and Ireland. Whilst processual archaeology was concerned with the economic significance of the environment, post-processual archaeology later rejected economically driven narratives, resulting in a turn away from plant and animal remains. Post-processual narratives focused instead on enigmatic ‘ritual’ items that economic accounts struggled to suitably explain. Processual accounts of landscapes, grounded in economic determinism, were also rejected in favour of explorations of their sociocultural aspects. However, in moving away from plant and animal remains, such accounts lacked the ability to rigorously explore the specificities of particular landscapes and humans actions within them. This paper will bridge this gap by considering how palaeoecological and zooarchaeological analyses can be used to explore human interactions with plants and animals, which were key in developing understandings and relationships that ultimately structured landscapes, influenced past human actions and shaped archaeological assemblages.     

Living Mesolithic Time: Narratives,Chronologies and Organic Material Culture

British and Irish Mesolithic studies have long been characterized by a reliance on broad-scale lithic typologies, both to provide chronologies, and in discussion of ‘cultural’ groups. More recently, traditional narrative structures—period definitions of ‘Early’ and ‘Late’, or culture typologies—have been complemented by a host of other evidence. This has included new studies of site stratigraphy, evidence for seasonality, and material culture chaîne opératoire chronologies, which place a greater emphasis on both temporal precision and the lived experiences of Mesolithic peoples. This paper will consider how the study of organic artefacts forces these narrative scales into acute focus, and presents an opportunity to explore the challenges in synthesizing different forms of data. We discuss how the evidence from sites in Ireland and Britain allows for new approaches, and highlight some of the challenges that this evidence presents, not least the perennial issue of moving from site-specific data to broader narratives. While the nature of earlier prehistoric evidence makes this an especially obvious issue for Mesolithic studies, it is one which generally besets archaeology. We suggest that in order to move beyond this in earlier prehistoric studies specifically, we need to make better use of all evidence sources, however seemingly prosaic, including antiquarian collections in museums, and chance and casual finds. Only by including the raft of available data, and recognizing its utility beyond the sum of individual apparently uninspiring parts, can we begin to move from generalizing narratives to more nuanced archaeological understandings of past material worlds.