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09 Oct 2024
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Experiences from the BItFROST Project: Developing a 3D repository at the Museum of Cultural History

Keeping 3D data usable - the BitFROST project

Recommended by ORCID_LOGO based on reviews by Alphaeus Lien-Talks and 1 anonymous reviewer

3D technologies are now standard methods for documenting artefacts and archaeological sites. In order to make the resulting digital cultural heritage accessible to current and future generations, a long-term approach to data management is required, with continuous adjustments and consideration of the changing needs of the users. This is the conclusion of the authors Bonelli and colleagues [1], who present a project in which such a holistic approach was applied in practice.

Introduced is the BitFROST platform (Bridging Research Across Heritage Studies) of the Museum of Cultural History at the University of Oslo. This self-hosted platform has been in existence since 2021 and is dedicated to optimising the long-term storage and reuse of 3D data. The project arose from the museum's legal obligations and long tradition of keeping archaeological information usable. The platform was developed with explicit consideration of user feedback to fulfil the different expectations and needs at an early stage. The BitFROST project is therefore a wonderful illustration of how change management should be practised.

The article repeatedly provides brief insights into the functionalities and best practices of the platform but is particularly impressive due to its in-depth contextualisation within the state-of-the-art of digital data management. The authors show a high level of expertise and provide numerous references to further literature. The results of the user feedback are also extensively analysed, and it is explained how, for example, individual technical competence or institutional awareness lead to a great diversity of needs and how this can be counteracted with cooperation, ongoing training and continuous development (as mentioned above).

I recommend this article as a very interesting case study and a well-researched white paper on complex digital data management.

References

Bonelli L., Pantos G. A.s, Indgjerd H., Uleberg E. (2024) Experiences from the BItFROST Project. Zenodo, ver.5 peer-reviewed and recommended by PCI Archaeology https://doi.org/10.5281/zenodo.8310062

Experiences from the BItFROST Project: Developing a 3D repository at the Museum of Cultural HistoryPantos George Alexis, Bonelli Letizia, Indgjerd Hallvard, Uleberg Espen<p>The Museum of Cultural History has been maintaining records and publishing its catalogues since the early 19th century. In recent years the institution has been working to improve data standardisation through adoption of common vocabularies, an...EuropeKristin Kruse2023-09-01 22:33:23 View
10 Jan 2024
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Linking Scars: Topology-based Scar Detection and Graph Modeling of Paleolithic Artifacts in 3D

A valuable contribution to automated analysis of palaeolithic artefacts

Recommended by ORCID_LOGO based on reviews by Lutz Schubert and 1 anonymous reviewer

In this paper (Linsel/Bullenkamp/Mara 2024), the authors propose an automatic system for scar-ridge-pattern detection on palaeolithic artefacts based on Morse Theory. Scare-Ridge pattern recognition is a process that is usually done manually while creating a drawing of the object itself. Automatic systems to detect scars or ridges exist, but only a small amount of them is utilizing 3D data. In addition to the scar-ridges detection, the authors also experiment in automatically detecting the operational sequence, the temporal relation between scars and ridges. As a result, they can export a traditional drawing as well as graph models displaying the relationships between the scars and ridges.

After an introduction to the project and the practice of documenting palaeolithic artefacts, the authors explain their procedure in automatising the analysis of scars and ridges as well as their temporal relation to each other on these artefacts. To illustrate the process, an open dataset of lithic artefacts from the Grotta di Fumane, Italy, was used and 62 artefacts selected. To establish a Ground Truth, the artefacts were first annotated manually. The authors then continue to explain in detail each step of the automated process that follows and the results obtained.

In the second part of the paper, the results are presented. First the results of the segmentation process shows that the average percentage of correctly labelled vertices is over 91%, which is a remarkable result. The graph modelling however shows some more difficulties, which the authors are aware of. To enhance the process, the authors rightfully aim to include datasets of experimental archaeology in the future. They also aim to develop a way of detecting the operational sequence automatically and precisely.

This paper has great potential as it showcases exactly what Digital and Computational Archaeology is about: The development of new digital methods to enhance the analysis of archaeological data. While this procedure is still in development, the authors were able to present a valuable contribution to the automatization of analytical archaeology. By creating a step towards the machine-readability of this data, they also open up the way to further steps in machine learning within Archaeology.

Bibliography

Linsel, F., Bullenkamp, J. P., and Mara, H. (2024). Linking Scars: Topology-based Scar Detection and Graph Modeling of Paleolithic Artifacts in 3D, Zenodo, 8296269, ver. 3 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.5281/zenodo.8296269

Linking Scars: Topology-based Scar Detection and Graph Modeling of Paleolithic Artifacts in 3DFlorian Linsel, Jan Philipp Bullenkamp & Hubert Mara<p>Motivated by the concept of combining the archaeological practice of creating lithic artifact drawings with the potential of 3D mesh data, our goal in this project is not only to analyze the shape at the artifact level, but also to enable a mor...Computational archaeology, Europe, Lithic technology, Upper PalaeolithicSebastian Hageneuer2023-09-01 23:03:59 View
08 Apr 2024
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Spaces of funeral meaning. Modelling socio-spatial relations in burial contexts

A new approach to a data ontology for the qualitative assessment of funerary spaces

Recommended by ORCID_LOGO based on reviews by 2 anonymous reviewers

The paper by Aline Deicke [1] is very readable, and it succeeds in presenting a still unnoticed topic in a well-structured way. It addresses the topic of “how to model social-spatial relations in antiquity”, as the title concisely implies, and makes important and interesting points about their interrelationship by drawing on latest theories of sociologists such as Martina Löw combined with digital tools, such as the CIDOC CRM-modeling. 

The author provides an introductory insight into the research history of funerary archaeology and addresses the problematic issue of not having investigated fully the placement of entities of the grave inventory. So far, the focus of the analysis has been on the composition of the assemblage and not on the positioning within this space-and time-limited context. However, the positioning of the various entities within the burial context also reveals information about the objects themselves, their value and function, as well as about the world view and intentions of the living and dead people involved in the burial. To obtain this form of qualitative data, the author suggests modeling knowledge networks using the CIDOC CRM. The method allows to integrate the spatial turn combined with aspects of the actor-network-theory. The theoretical backbone of the contribution is the fundamental scholarship of Martina Löw’s “Raumsoziologie” (sociology of space), especially two categories of action namely placing and spacing (SC1). The distinction between the two types of action enables an interpretative process that aims for the detection of meaningfulness behind the creation process (deposition process) and the establishment of spatial arrangement (find context). 

To illustrate with a case study, the author discusses elite burial sites from the Late Urnfield Period covering a region north of the Alps that stretches from the East of France to the entrance of the Carpathian Basin. With the integration of very basic spatial relations, such as “next to”, “above”, “under” and qualitative differentiations, for instance between iron and bronze knives, the author detects specific patterns of relations: bronze knives for food preparing (ritual activities at the burial site), iron knives associated with the body (personal accoutrement).

The complexity of the knowledge engineering requires the gathering of several CIDOC CRM extensions, such as CRMgeo, CRMarchaeo, CRMba, CRMinf and finally CRMsoc, the author rightfully suggests. In the end, the author outlines a path that can be used to create this kind of data model as the basis for a graph database, which then enables a further analysis of relationships between the entities in a next step. Since this is only a preliminary outlook, no corrections or alterations are needed. 

The article is an important step in advancing digital archaeology for qualitative research.

References

[1] Deicke, A. (2024). Spaces of funeral meaning. Modelling socio-spatial relations in burial contexts. Zenodo, 8310170, ver. 4 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.5281/zenodo.8310170

Spaces of funeral meaning. Modelling socio-spatial relations in burial contextsAline Deicke<p>Burials have long been one of the most important sources of archaeology, especially when studying past social practices and structure. Unlike archaeological finds from settlements, objects from graves can be assumed to have been placed there fo...Computational archaeology, Protohistory, Spatial analysis, Theoretical archaeologyAsuman Lätzer-Lasar2023-09-01 23:15:41 View
08 Jan 2024
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Comparing summed probability distributions of shoreline and radiocarbon dates from the Mesolithic Skagerrak coast of Norway

Taking the Reverend Bayes to the seaside: Improving Norwegian Mesolithic shoreline dating with advanced statistical approaches

Recommended by based on reviews by 2 anonymous reviewers

The paper entitled “Comparing summed probability distributions of shoreline and radiocarbon dates from the Mesolithic Skagerrak coast of Norway” by Isak Roalkvam and Steinar Solheim (2024) sheds new light on the degree to which shoreline dating may be used as a reliable chronological and palaeodemographic proxy in the Mesolthic of southern Norway.

Based on geologically motivated investigations of eustatic and isostatic sea-level changes, shoreline dating has long been used as a method to date archaeological sites in Scandinavia, not least in Norway (e.g., Bjerck 2008; Astrup 2018). Establishing reliable sea-level curves requires much effort and variations across regions may be substantial. While this topic has seen a great deal of attention in Norway specifically, many purely geological questions remain. In addition, dating archaeological sites by linking their elevation to previously established seal-level curves relies strongly on the foundational assumption that such sites were in fact shore-bound. Given the strong contrast between terrestrial and marine productivity in high-latitude regions such as Norway, this assumption per se is not unreasonable. It is very likely that the sea has played a decisive role in the lives of Stone Age peoples throughout (Persson et al. 2017), just as it has in later periods here. However, many confounding factors relating to both taphonomy and human behaviour are also likely to have loosened the shore/site relationship. Systematic variations driven by cultural norms about settlement location, mobility, as well as factors such as shelter construction, fuel use and a range of other possible factors could variously have impacted the validity or at least the precision of shoreline dating.

By developing a new methodology for handling and assessing a large number of shoreline dated sites, Roalkvam and Solheim use state-of-the-art Bayesian statistical methods to compare shoreline and radiocarbon dates as proxies for population activity. The probabilistic treatment of shoreline dates in this way is novel, and the divergences between the two data sets are interpreted by the authors in light of specific behavioural, cultural, and demographic changes. Many of the peaks and troughs observed in these time-series may be interpreted in light of long-observed cultural transitions while others may relate to population dynamics now also visible in palaeogenomic analyses (Günther et al. 2018; Manninen et al. 2021). Overall, this paper makes an innovative and fresh contribution to the use of shoreline dating in Norwegian archaeology, specifically by articulating it with recent developments in Open Science and data-driven approaches to archaeological questions (Marwick et al. 2017).

References

Astrup, P. M. 2018. Sea-Level Change in Mesolithic Southern Scandinavia : Long- and Short-Term Effects on Society and the Environment. Aarhus: Aarhus University Press.

Bjerck, H. B. 2008. Norwegian Mesolithic Trends: A Review. In Mesolithic Europe, edited by Geoff Bailey and Penny Spikins, 60–106. Cambridge: Cambridge University Press.

Günther, T., Malmström, H., Svensson, E. M., Omrak, A., Sánchez-Quinto, F., Kılınç, G. M., Krzewińska, M. et al. 2018. Population Genomics of Mesolithic Scandinavia: Investigating Early Postglacial Migration Routes and High-Latitude Adaptation. PLOS Biology 16 (1): e2003703. https://doi.org/10.1371/journal.pbio.2003703

Manninen, M. A., Damlien, H., Kleppe, J. I., Knutsson, K., Murashkin, A., Niemi, A. R., Rosenvinge, C. S. and Persson, P. 2021. First Encounters in the North: Cultural Diversity and Gene Flow in Early Mesolithic Scandinavia. Antiquity 95 (380): 310–28. https://doi.org/10.15184/aqy.2020.252

Marwick, B., d’Alpoim Guedes, J. A., Barton, C. M., Bates, L. A., Baxter, M., Bevan, A., Bollwerk, E. A. et al. 2017. Open Science in Archaeology. The SAA Archaeological Record 17 (4): 8–14. https://doi.org/10.31235/osf.io/72n8g

Persson, P., Riede, F., Skar, B., Breivik, H. M. and Jonsson, L. 2017. The Ecology of Early Settlement in Northern Europe: Conditions for Subsistence and Survival. Sheffield: Equinox.

Roalkvam, I. and Solheim, S. (2024). Comparing summed probability distributions of shoreline and radiocarbon dates from the Mesolithic Skagerrak coast of Norway, SocArXiv, 2f8ph, ver. 5 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.31235/osf.io/2f8ph

Comparing summed probability distributions of shoreline and radiocarbon dates from the Mesolithic Skagerrak coast of NorwayIsak Roalkvam, Steinar Solheim <p>By developing a new methodology for handling and assessing a large number of shoreline dated sites, this paper compares the summed probability distribution of radiocarbon dates and shoreline dates along the Skagerrak coast of south-eastern Norw...Computational archaeology, Dating, Europe, Mesolithic, PaleoenvironmentFelix Riede2023-09-26 16:43:29 View
27 Jun 2024
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At the edge of the city: the digital storyline of the Bronchotion Monastery of Mystras

Mystras Captured from the Air – Digital Recording Techniques for Cultural Heritage Management of a Monumental Archaeological Site

Recommended by ORCID_LOGO based on reviews by Nikolai Paukkonen and 1 anonymous reviewer

This paper (Panagiotidis et al. 2024) discusses the digital approach to the ‘digital storyline’ of the Monastery of Brontochion of Mystras, Peloponnese, Greece. Using drone and terrestrial photogrammetric recording techniques, their goal is to produce maps and 3D models that will be integrated in the overall study of the medieval city, as well as function as a comprehensive visualisation of the archaeological site throughout its history. This will take shape as a web application using ArcGIS Online that will be a valuable platform presenting interactive visual information to accompany written publications. In addition, the assets in the database will be available for further advanced purposes, such as suggested by the authors; xR applications, educational games or digital smart guides. The authors of the paper do a good job in describing the historical background of the site and the purpose of the digital documentation techniques, and the applied methods and the technical details of the produced models are dealt with in detail.

The paper presents a compelling case for an integrative approach to using digital recording techniques at an architectonically complex site for Cultural Heritage Management. It can be placed in a series of studies discussing how monumental sites can benefit from advanced digital recording techniques such as those presented in this paper (see for example Waagen and Wijngaarden 2024). The paper is recommended as an interesting read for all who are involved in this field.

References

Panagiotidis V. Vayia, Valantou Vasiliki, Kazolias Anastasios, and Zacharias Nikolaos. (2024). At the Edge of a City: The Digital Storyline of the Brontochion Monastery of Mystras. Zenodo, 8126952, ver. 3 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.5281/zenodo.8126952

Waagen, J., and van Wijngaarden, G. J. (2024). Understanding Archaeological Site Topography: 3D Archaeology of Archaeology. Journal of Computer Applications in Archaeology, 7(1), 237–243. https://doi.org/10.5334/jcaa.157 

At the edge of the city: the digital storyline of the Bronchotion Monastery of MystrasPanagiotidis V. Vayia; Valantou Vasiliki; Kazolias Anastasios; Zacharias Nikolaos<p>This study focuses on the digital depiction of the storyline of the Monastery of Brontochion of Mystras, located at the southwest edge of the city of Mystras, situated at the foot of Mt. Taygetos, six kilometres west of the city of Sparta in th...Computational archaeology, Landscape archaeology, Mediterranean, Remote sensing, Spatial analysisJitte Waagen2023-10-03 17:02:54 View
12 Feb 2024
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First evidence of a Palaeolithic occupation of the Po plain in Piedmont: the case of Trino (north-western Italy)

Not Simply the Surface: Manifesting Meaning in What Lies Above.

Recommended by based on reviews by Lawrence Todd, Jason LaBelle and 2 anonymous reviewers

The archaeological record comes in many forms. Some, such as buried sites from volcanic eruptions or other abrupt sedimentary phenomena are perhaps the only ones that leave relatively clean snapshots of moments in the past. And even in those cases time is compressed. Much, if not all other archaeological record is a messy affair. Things, whatever those things may be, artifacts or construction works (i.e., features), moved, modified, destroyed, warped and in a myriad of ways modified from their behavioral contexts. Do we at some point say the record is worthless? Not worth the effort or continuing investigation. Perhaps sometimes this may be justified, but as Daffara and colleagues show, heavily impacted archaeological remains can give us clues and important information about the past. Thoughtful and careful prehistorians can make significant contributions from what appear to be poor archaeological records. 

            In the case of Daffara and colleagues, a number of important theoretical cross-sections can be recognized. For a long time surface archaeology was thought of simply as a way of getting a preliminary peak at the subsurface. From some of the earliest professional archaeologists (e.g., Kidder 1924, 1931; Nelson 1916) to the New Archaeologists of the 1960s, the link between the surface and subsurface was only improved in precision and systematization (Binford et al. 1970). However, at Hatchery West Binford and colleagues not only showed that surface material can be used more reliably to get at the subsurface, but that substantive behavioral inferences can be made with the archaeological record visible on the surface.

            Much more important are the behavioral implications drawn from surface material. I am not sure we can cite the first attempts at interpreting prehistory from the surface manifestations of the archaeological record, but a flurry of such approaches proliferated in the 1970s and beyond (Dunnell and Dancey 1983; Ebert 1992; Foley 1981).  Off-site archaeology, non-site archaeology, later morphing into landscape archaeology all deal strictly with surface archaeological record to aid in understanding the past. With the current paper, Daffara and colleagues (2024) are clearly in this camp. Although still not widely accepted, it is clear that some behaviors (parts of systems) can only be approached from surface archaeological record. It is very unlikely that a future archaeologist will be able to excavate an entire human social/cultural system; people moving from season to season, creating multiple long and short term camps, travelling, procuring resources, etc. To excavate an entire system one would need to excavate 20,000 km2 or some similarly impossible task. Even if it was physically possible to excavate such an enormous area, it is very likely that some of contextual elements of any such system will be surface manifestations. 

Without belaboring the point, surface archaeological record yields data like any other archaeological record. We must contextual the archaeological artifacts or features weather they come from surface or below. Daffara and colleagues show us that we can learn about deep prehistory of northern Italy, with collections that were unsystematically collected, biased by agricultural as well as other land deformations agents. They carefully describe the regional prehistory as we know it, in particular specific well documented sites and assemblages as a means of applying such knowledge to less well controlled or uncontrolled collections.

 

References

Binford, L., Binford, R. S. R., Whallon, R. and Hardin, M. A. (1970). Archaeology of Hatchery West. Memoirs of the Society for American Archaeology, No. 24, Washington D.C.

Daffara, S., Giraudi, C., Berruti, G. L. F., Caracausi, S. and Garanzini, F. (2024). First evidence of a Palaeolithic frequentation of the Po plain in Piedmont: the case of Trino (north-western Italy), OSF Preprints, pz4uf, ver. 6 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.31219/osf.io/pz4uf

Dunnell, R. C. and Dancey, W. S. (1983). The siteless survey: a regional scale data collection strategy. In Advances in Archaeological Method and Theory, vol. 6, edited by Michael B. Schiffer, pp. 267-287. Academic Press, New York.

Ebert, J. I. (1992). Distributional Archaeology. University of New Mexico Press, Albuquerque.

Foley, R. A. (1981). Off site archaeology and human adaptation in eastern Africa: An analysis of regional artefact density in the Amboseli, Southern Kenya. British Archaeological Reports International Series 97. Cambridge Monographs in African Archaeology 3. Oxford England.

Kidder, A. V. (1924). An Introduction to the Study of Southwestern Archaeology, With a Preliminary Account of the Excavations at Pecos. Papers of the Southwestern Expedition, Phillips Academy, no. 1. New Haven, Connecticut.

Kidder, A. V. (1931). The Pottery of Pecos, vol. 1. Papers of the Southwestern Expedition, Phillips Academy. New Haven, Connecticut.

Nelson, N. (1916). Chronology of the Tano Ruins, New Mexico. American Anthropologist 18(2):159-180.

First evidence of a Palaeolithic occupation of the Po plain in Piedmont: the case of Trino (north-western Italy)Sara Daffara, Carlo Giraudi, Gabriele L.F. Berruti, Sandro Caracausi, Francesca Garanzini<p>The Trino hill is an isolated relief located in north-western Italy, close to Trino municipality. The hill was subject of multidisciplinary studies during the 1970s, when, because of quarrying and agricultural activities, five concentrations of...Lithic technology, Middle PalaeolithicMarcel Kornfeld2023-10-04 16:58:19 View
20 Feb 2024
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Understanding Archaeological Site Topography: 3D Archaeology of Archaeology

Rewriting Archaeological Narratives: Archaeology of Archaeology through 3D Site Topography Recording

Recommended by ORCID_LOGO based on reviews by Geert Verhoeven, Jesús García-Sánchez and Catherine Scott

Even though applications of 3D recording have existed in archaeology for a long time, it is only since the early 2000s that this field of research has become mainstream thanks to technological advances, and the availability of low-cost sensors and image-based modelling software. This has led to significant changes in the way archaeological sites are documented. This paper entitled "Understanding Archaeological Site Topography: 3D Archaeology of Archaeology" by Jitte Waagen & Gert Jan van Wijngaarden (2024) presents an overview of the current developments in the application possibilities of 3D site topography recording in archaeology. The paper is the result of the round table discussion "Understanding Archaeological Site Topography: 3D Archaeology of Archaeology" at the CAA conference on 5 April 2023 in Amsterdam, with contributions from Radu Brunchi, Nicola Lercari, Joep Orbons, Davide Tanasi, Alicia Walsh, Pawel Wolf and Teagan Zoldoske.

The paper starts with a discussion of the Amsterdam Troy Project (ATP). In the frame of the ATP, the rich history of archaeological activity (over 150 years of fieldwork) at Troy is being studied to explore how previous archaeological research has helped to shape the current topography of the site and how these earlier research activities, embedded in their contemporary theoretical frameworks, have determined our understanding of the site (see Murray and M. Spriggs 2017, Carver 2011 for the influence of theory on archaeological fieldwork and archaeology as a discipline), the so-called 'Archaeology of Archaeology' approach. In addition to studying previous research records and re-excavating old excavation trenches, a central element of the project is the 3D recording of the past and present topography of the site in order to reconstruct the archaeological research activities at the site and their impact on the archaeological landscape.

The paper focuses on current trends in 3D recording of archaeological site topography and discusses three main areas where 3D recording of archaeological site topography can contribute to the "Archaeology of Archaeology" approach: (1) monitoring the topography of sites for preservation, conservation, research and dissemination purposes; (2) reconstructing, reevaluating and reinterpreting past archaeological research efforts; and (3) archiving in a 4D (GIS) environment. This is done using the example of the Amsterdam Troy project and comparing it with other projects using similar methods and approaches. Using these case studies, the authors effectively discuss the impact of these technologies on the understanding of the topography of archaeological sites and how 3D recording can enhance archaeological research methodologies and interpretations, for example, by not using such 3D approaches as a stand-alone product but integrating them with available information from previous research activities. They also recognise the limitations and challenges involved, such as the need for customised data acquisition strategies and the lack of ready-made software solutions for developing comprehensive data management strategies.

One topic that could have been covered in more detail is how 3D site topography recording (and 3D recording in general) is affected by current theoretical developments in archaeology. Like any other archaeological fieldwork or data collection approach, it is a child of its time. Decisions such as what to record, how to record, what to store, how to store, what to visualise, and how to visualise influence our understanding of archaeological sites (Ward 2022). This minor critical reflection aside, the paper makes a timely and significant contribution to archaeology by addressing current trends and the limitations of the increasingly widespread use of 3D site topography recording technologies.

References

Carver, G. (2011). Reflections on the archaeology of archaeological excavation, Archaeological Dialogues 18(1), pp. 18–26. https://doi.org/10.1017/S1380203811000067

Murray, T. and Spriggs, M. (2017). The historiography of archaeology: exploring theory, contingency and rationality, World Archaeology 49(2), pp. 151–157. https://doi.org/10.1080/00438243.2017.1334583

Ward, C. (2022). Excavating the Archive / Archiving the Excavation: Archival Processes and Contexts in Archaeology, Advances in Archaeological Practice 10(2), pp. 160–176. https://doi.org/10.1017/aap.2022.1

Waagen, J. and van Wijngaarden, G.J. (2024). Understanding Archaeological Site Topography: 3D Archaeology of Archaeology, Zenodo, 10061343, ver. 3 peer-reviewed and recommonded by Peer Community in Archaeology. https://doi.org/10.5281/zenodo.10061343

Understanding Archaeological Site Topography: 3D Archaeology of ArchaeologyWaagen, Jitte & Wijngaarden, Gert Jan van<p>The current ubiquitous use of 3D recording technologies in archaeological fieldwork, for a large part due to the application of budget-friendly (drone) sensors and the availability of many low-cost image-based 3D modelling software packages, ha...Computational archaeology, Remote sensingDevi Taelman2023-10-17 23:03:47 View
02 Mar 2024
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A note on predator-prey dynamics in radiocarbon datasets

A new approach to Predator-prey dynamics

Recommended by ORCID_LOGO based on reviews by Jesús Rodríguez, Miriam Belmaker and 1 anonymous reviewer

Various biological systems have been subjected to mathematical modelling to enhance our understanding of the intricate interactions among different species. Among these models, the predator-prey model holds a significant position. Its relevance stems not only from its application in biology, where it largely governs the coexistence of diverse species in open ecosystems, but also from its utility in other domains. 

Predator-prey dynamics have long been a focal point in population ecology, yet access to real-world data is confined to relatively brief periods, typically less than a century. Studying predator-prey dynamics over extended periods presents challenges due to the limited availability of population data spanning more than a century. The most extensive dataset is the hare-lynx records from the Hudson Bay Company, documenting a century of fur trade [1]. However, other records are considerably shorter, usually spanning decades [2,3]. This constraint hampers our capacity to investigate predator-prey interactions over centennial or millennial scales. 

Marom and Wolkowski [4] propose here that leveraging regional radiocarbon databases offers a solution to this challenge, enabling the reconstruction of predator-prey population dynamics over extensive timeframes. To substantiate this proposition, they draw upon examples from Pleistocene Beringia and the Holocene Judean Desert. This approach is highly relevant and might provide insight into ecological processes occurring at a time scale beyond the limits of current ecological datasets. 

The methodological approach employed in this article proposes that the summed probability distribution (SPD) of predator radiocarbon dates, which reflects changes in population size, will demonstrate either more or less variation than anticipated from random sampling in a homogeneous distribution spanning the same timeframe. A deviation from randomness would imply a covariation between predator and prey populations. This basic hypothesis makes no assumptions about the frequency, mechanism, or cause of predator-prey interactions, as it is assumed that such aspects cannot be adequately tested with the available data. If validated, this hypothesis would offer initial support for the idea that long-term regional radiocarbon data contain signals of predator-prey interactions. This approach could justify the construction of larger datasets to facilitate a more comprehensive exploration of these signal structures.

 

References

[1] Elton, C. and Nicholson, M., 1942. The Ten-Year Cycle in Numbers of the Lynx in Canada. J. Anim. Ecol. 11, 215–244.

[2] Gilg, O., Sittler, B. and Hanski, I., 2009. Climate change and cyclic predator-prey population dynamics in the high Arctic. Glob. Chang. Biol. 15, 2634–2652. https://doi.org/10.1111/j.1365-2486.2009.01927.x

[3] Vucetich, J.A., Hebblewhite, M., Smith, D.W. and Peterson, R.O., 2011. Predicting prey population dynamics from kill rate, predation rate and predator-prey ratios in three wolf-ungulate systems. J. Anim. Ecol. 80, 1236–1245. https://doi.org/10.1111/j.1365-2656.2011.01855.x

[4] Marom, N. and Wolkowski, U. (2024). A note on predator-prey dynamics in radiocarbon datasets, BioRxiv, 566733, ver. 4 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.1101/2023.11.12.566733

A note on predator-prey dynamics in radiocarbon datasetsNimrod Marom, Uri Wolkowski<p>Predator-prey interactions have been a central theme in population ecology for the past century, but real-world data sets only exist for recent, relatively short (&lt;100 years) time spans. This limits our ability to study centennial/millennial...Bioarchaeology, Environmental archaeology, Palaeontology, Paleoenvironment, ZooarchaeologyRuth Blasco2023-12-12 14:37:22 View
10 Jun 2024
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Hypercultural types: archaeological objects in fast times.

The Postmodern Predicament of Type-Thinking in Archaeology

Recommended by ORCID_LOGO, and ORCID_LOGO based on reviews by Gavin Lucas, Miguel John Versluys and Anna S. Beck

“Hypercultural types: archaeological objects in fast times” by A. Ribeiro (1) offers some timely, critical and creative reflections on the manifold struggles of and disappointments in type-thinking and typological approaches in recent archaeological scholarship. Ribeiro insightfully situates what has been identified as a “crisis” in archaeological typo-praxis in the historical conditions of postmodernity and late capitalism themselves. The author thereby attempts what he himself considers “quite hard”, namely “to understand the current Zeitgeist and how it affects how we think and do archaeology” (p. 4). This provides a sort of historical epistemology of the present which can of course only be preliminary and incomplete as it crystallizes, takes shape, and transforms as we write these lines, is available only in fragments and hints, and is generally difficult to talk about and describe as we (the author included) lack critical distance – present-day archaeologists and fellow academics are both enfolded in postmodernity and continue to contribute to its logics and trajectories. Ribeiro’s key argument is provocative as it is interesting: he contends that archaeologists’ difficulties of coming to terms with types and typologies – staple knowledge practices of the discipline ever since – are a symptom of the changing cultural matrix of our times. 

The diagnosis is multilayered and complex, and Ribeiro at times only scratches the surface of what may be at stake here as he openly admits himself. At the core of his proposal is a shift in attention away from classical questions of epistemological rank, which in archaeology have tended to orbit the contentious issue of the reality of types (see also 2). Instead of foregrounding the question of type-realities – whether types, once identified, can be meaningfully said to exist and to represent something significant in the world – archaeologists are urged to recognize that typo-praxis is culturally saturated in at least two profound ways. First, devising and mobilizing types and typologies is a cultural practice itself – it may indeed have long been a foundational ‘cultural technique’ (Kulturtechnik) (3) of archaeology as a disciplined community-venture of methodical knowledge production. Typo-centric understandings of the archaeological record are quite akin to definition-centric apprehensions of the same as in both cases order, discreteness, and one-to-one correspondence are considered overriding epistemic virtues and credible pointers to a subject-independent “reality”. As such, these practices have a location of their own and they may thus notably conflict with the particularities of alternate and ever-mutating phenomenal realities and historical conditions. Discreteness may for instance lose its paradigmatic status as a descriptor of worldly order, and this is precisely what Ribeiro argues to have happened in the wake of postmodern transformations, influentially said to have deeply reconfigured the relation between the local and the global, at times even superseding such distinctions altogether. When coupled to questions of reality, types, in a similar fashion as definitions, quickly become vehicles to affirm epistemic power and knowledge authority and so help certify certain kinds of realities while supressing others. This is the paradox of modernity: to insist on monolithic understandings of the world while professing radical difference. 

Second, and for Ribeiro more importantly, typo-praxis is not just subject to cultural variation and thus by implication is plural, it also always has its proper associated cultural milieu in which it exerts some sort of efficacy, i.e. enables action and insight. Ribeiro maintains that this sort of efficacy has become contentious under postmodern conditions and this is because culture, under the gaze of global consumerism, has lost much of its classical significance, and as “hyperculture” (4) developed new logics, significations, and material culture correspondences, essentially “flattening” the highly textured and differentiated world of modernity (p. 6). Some of these new configurations sharply violate the expectations of traditional views of culture. The postmodern situation has in this way effectively emerged as a resistant force proffering much caution and growing scepticism among archaeologists and other academics alike as received ideas about “types” and “cultures” do not seem to work anymore the same way as before. The credibility of different modes of typo-praxis, archaeological or not, in other words, may depend much more on the cultural ecology of lived experience and contemporary diagnosis than is often realized. With Ribeiro, we may say that culture concepts and type concepts are indeed co-constitutive, and what sort of types and typologies archaeologists can persuasively deploy thus also depends greatly on how we construct the link between culture and type, and how (well) we grapple with our own realities and the lessons we draw from them – yet another important reminder of how our own subjectivities figure in such foundational debates (see esp. 5).

The crisis of typo-praxis in archaeology, then, is intricately linked to the crisis of modernity, broached by Ribeiro with the labels of postmodernity and late capitalism. Upon reflection, this is not surprising at all since Tylor’s (6) influential definition of culture for example, which is extensively referenced in the paper, was both reflective of and conducive to the project of modernity and its distinctive historical formations such as empire and colonialism. Ribeiro reminds us that questions of justification and credibility, be it in the domain of type-thinking or other epistemic contexts, can never be fully divorced from the contemporary situation, and archaeologists thus need to be vigilant observers of the present, too. Typo-praxis ultimately is motivated by and draws authority from what Foucault (7) has called épistémè, the totality of pertinent parameters forming the historical a priori of understanding or the guiding unconsciousness of subjectivity within a given epoch. The crisis of archaeological typo-praxis, in this view, signifies a calling into question of the historical a priori on which much traditional type-work in archaeology was premised. Archaeologists still have to come to terms with the implications and consequences of this assessment. “Hypercultural types: archaeological objects in fast times” offers a first poignant analysis of some of these challenges of postmodern archaeological type-thinking.

 

Bibliography

1. Ribeiro, A. (2024). Hypercultural types: archaeological objects in fast times. Zenodo, 10567441, ver. 3 peer-reviewed and recommended by Peer Community in Archaeology. https://doi.org/10.5281/zenodo.10567441

2. Hussain, S. T. (2024). The Loss of Typological Innocence: An Archaeology of Archaeological Typo-Praxis. Zenodo, 10567441. https://doi.org/10.5281/zenodo.10547264

3.  Macho, T. (2013). Second-Order Animals: Cultural Techniques of Identity and Identification. Theory, Culture & Society 30, 30–47. https://doi.org/10.1177/0263276413499189

4. Han, B.-C. (2022). Hyperculture: culture and globalization (Polity Press).

5. Frank, A., Gleiser, M. and Thompson, E. (2024). The blind spot: why science cannot ignore human experience (The MIT Press). https://doi.org/10.7551/mitpress/13711.001.0001

6. E. B. Tylor, E. B. (1871). Primitive Culture: Researches Into the Development of Mythology, Philosophy, Religion, Art, and Custom (J. Murray).

7.  Foucault, M. (2007). The order of things: an archaeology of the human sciences, Repr (Routledge).

Hypercultural types: archaeological objects in fast times. Artur Ribeiro<p>Although artifact typologies still play a big role in archaeology, they have certainly lost some repute in recent decades. More than just a collection of items with similar attributes, typologies are a reflection of cultural behaviour and pract...Theoretical archaeologyShumon Tobias Hussain2024-01-25 13:40:08 View
02 Nov 2020
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Probabilistic Modelling using Monte Carlo Simulation for Incorporating Uncertainty in Least Cost Path Results: a Roman Road Case Study

A probabilistic method for Least Cost Path calculation.

Recommended by based on reviews by Georges Abou Diwan and 1 anonymous reviewer

The paper entitled “Probabilistic Modelling using Monte Carlo Simulation for Incorporating Uncertainty in Least Cost Path Results: a Roman Road Case Study” [1] submitted by J. Lewis presents an innovative approach to applying Least Cost Path (LCP) analysis to incorporate uncertainty of the Digital Elevation Model used as the topographic surface on which the path is calculated.

The proposition of using Monte Carlo simulations to produce numerous LCP, each with a slightly different DEM included in the error range of the model, allows one to strengthen the method by proposing a probabilistic LCP rather than a single and arbitrary one which does not take into account the uncertainty of the topographic reconstruction. This new method is integrated in the R package leastcostpath [2].

The author tests the method using a Roman road built along a ridge in Cumbria, England. The integration of the uncertainty of the DEM, thanks to Monte Carlo simulations, shows that two paths could have the same probability to be the real LCP. One of them is indeed the path that the Roman road took. In particular, it is one of two possibilities of LCP in the south to north direction.

This new probabilistic method therefore strengthens the reconstruction of past pathways, while also allowing new hypotheses to be tested, and, in this case study, to suggest that the northern part of the Roman road’s location was selected to help the northward movements.

[1] Lewis, J., 2020. Probabilistic Modelling using Monte Carlo Simulation for Incorporating Uncertainty in Least Cost Path Results: a Roman Road Case Study. SocArXiv, mxas2, ver 17 peer-reviewed and recommended by PCI Archaeology, 10.31235/osf.io/mxas2.

[2] Lewis, J., 2020. leastcostpath: Modelling Pathways and Movement Potential Within a Landscape. R package. Version 1.7.4.

Probabilistic Modelling using Monte Carlo Simulation for Incorporating Uncertainty in Least Cost Path Results: a Roman Road Case StudyJoseph Lewis<p>The movement of past peoples in the landscape has been studied extensively through the use of Least Cost Path (LCP) analysis. Although methodological issues of applying LCP analysis in Archaeology have frequently been discussed, the effect of v...Spatial analysisOtis Crandell Adam Green, Georges Abou Diwan2020-08-05 12:10:46 View