Cited by 0Archaeological and Geological StudiesAncient and Medieval Archaeology StudiesArchaeology and ancient environmental studies

The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index; 2 of the 43 sources its claims cite were checked for support.

Comparing Connectivity Patterns in Prehistoric Germany by Means of Network Analysis, Artefact and Site Distribution and a Reassessment of Human Mobility ( 87 Sr/ 86 Sr)

Open access
Schjerven, Nicoline, Bilotti, Giacomo, Kempf, Michael, Reiter, Samantha S.·2026·OPEN Archaeology

Abstract

Recent advances in the natural sciences, bioarchaeology and spatial analytical techniques have significantly improved our ability to reconstruct prehistoric human connectivity. However, traditional mapping approaches can often fail to integrate isotopic evidence with landscape modeling and artifact distribution comprehensively. This study addresses this gap by combining Least-Cost Path (LCP) analysis, spatial distribution of key archaeological artifacts (jade axes and hilted swords), and 87 Sr/ 86 Sr isotopic data from previous research to investigate movement corridors in the Late Neolithic (ca. 3,800–2,800 BCE) and Bronze Age (ca. 2,300/2,200–800 BCE) landscapes of central and southern Germany. Our objective is to model how prehistoric populations navigated and exploited natural landscape features for mobility and trade, assessing how these corridors influenced the spatial distribution of important trade commodities. By integrating isotopic data with modeled movement corridors, our study confirms through independent isotopic and spatial evidence, that mobility networks intensified and stabilized during the Bronze Age. This approach highlights a methodological advance rather than reiterating a well-known trend, as the broader variability of 87 Sr/ 86 Sr ratios directly corresponds with the establishment of sustained long-distance connections.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

This study combines Least-Cost Path modeling, artifact distributions (Alpine jade axes and hilted swords), and published 87Sr/86Sr data to compare Neolithic and Bronze Age connectivity in central and southern Germany. It finds Bronze Age sites and hilted swords more tightly associated with low-cost corridors, while jade axes and Neolithic settlement show weaker or more dispersed corridor coupling, with isotopic data suggesting subtle increases in Bronze Age mobility.

Key findings

  • Rhohat/LCP results: Neolithic sites show a slight but consistent increase in spatial intensity near modeled movement corridors (within ca. 0–10 km); Bronze Age sites show a stronger concentration in the lowest LCP costs and a sharper decline with increasing cost; hilted swords mirror the Bronze Age site trend, while jade axes show little to no enhancement in the lowest cost range and a comparatively flat curve across low-moderate costs.
  • Strontium isotope patterns: Neolithic sites have a wider range of median 87Sr/86Sr values across sites but narrow intra-site distributions; Bronze Age sites have more stable site medians/narrower IQRs but a wider overall range and modestly greater intra-site variability, including more frequent outliers.
  • An exploratory test found a negative relationship between LCP-derived corridor density and intra-site standard deviation of 87Sr/86Sr, with higher variability in low-accessibility areas and reduced variability in high-corridor-density areas.
  • Datasets analyzed include 414 jade axe datapoints, 389 hilted sword finds, and 56 sites with 87Sr/86Sr data (34 Bronze Age, 22 Neolithic).

Methods

  • The study area is present-day Germany. It integrates Least-Cost Path analysis, spatial distributions of Alpine jade axes and Bronze Age hilted swords, and published human 87Sr/86Sr data from the Big Interdisciplinary Archaeological Database (BIAD).
  • LCP modeling used a modified “From Everywhere to Everywhere” approach with Circuit Theory concepts, implemented in GRASS GIS via R; a ∼300 m resolution DEM aggregated from SRTM-90 was used, and resulting paths were combined into a kernel density surface.
  • Statistical testing used rhohat in spatstat to model point intensity relative to distance from high-use corridors or LCP cost; a separate network model used v.net.models with a 100 m DEM, and Neolithic clustering was reduced using KDE with σ = 3,000 m.

Limitations

  • The paper states that LCP results depend on input surface parameterization; different friction models could shift corridor geometry; rhohat confidence envelopes widen where data are sparse; 87Sr/86Sr comparability rests on consistent baseline calibration and diagenesis screening; spatial equifinality remains a concern; modeled accessibility is a proxy, not a direct record of route use; and sample sizes are small in key categories.
  • The text also makes evident that jade axes and hilted swords are separated by a chronological gap of over a millennium, site types were not differentiated in the LCP analysis, modern anthropogenic changes have modified the archaeological landscape and introduced preservation/visibility bias, and archaeological data are incomplete due to undiscovered and lost sites.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1515/opar-2025-0077

Cites

73 of 73 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

2 of 43 cited sources checked · 0 supported · 0 flagged · accuracy not yet measured

  • Interpretationown data
    § 3.2 Strontium

    This pattern is compatible with models positing increased integration of settlement systems with exchange and communication networks in the Bronze Age.

    “This pattern is compatible with models positing increased integration of settlement systems with exchange and communication networks in the Bronze Age (Frei et al. 2019, Furholt 2021, Kristiansen 2002, Kristiansen and Larsson 2005, Miera 2025, Miera et al. 2019).”
    Quote in the paperSubstantial claim2 of 3 sources checked
    • cites Frei et al. 2019 source

      The Introduction says southern Scandinavia became more closely linked to European metal-trade networks, and ‘Comparing 3rd and 2nd millennia mobility’ links a change in mobility to long-distance trade. This supports increased exchange connections in the Bronze Age, but the paper does not establish increased integration of settlement systems with communication networks. (LLM, conf=0.83)

      Experimental — accuracy not yet measured
    • cites Furholt 2021 source

      In “An Alternative Narrative of Third Millennium BC Mobility Processes” (page unavailable), Furholt describes widening transregional networks, stronger links between localities, and continuous exchange during the third millennium BC. This supports the claim’s general idea of increased connectivity, but the passage does not specifically describe Bronze Age settlement systems becoming integrated with exchange and communication networks. (LLM, conf=0.83)

      Experimental — accuracy not yet measured
    • cites Kristiansen 2002 source
  • Findingown data
    § 2.3.2 Least Cost Path

    A σ of 3,000 m with 100 m raster resolution best captured observed clustering.

    “A σ of 3,000 m with 100 m raster resolution best captured observed clustering.”
    Quote in the paperSubstantial claim
  • Findingown data
    § 2.3.2 Least Cost Path

    Neolithic sites showed clear spatial clustering.

    “Neolithic sites showed clear spatial clustering.”
    Quote in the paperSubstantial claim
  • Findingnone given
    § 3.2 Strontium

    The overall range of 87Sr/86Sr values for the Neolithic period is narrower.

    “However, the overall range of 87 Sr /86 Sr values for the Neolithic period is narrower.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • Findingown data
    § 3.2 Strontium

    Plausible transalpine crossing sectors correspond broadly to known modern pass zones.

    “When plotted against modeled low-cost pathways (Figure 3), plausible transalpine crossing sectors correspond broadly to known modern pass zones, suggesting that reconstructed prehistoric exchange likely exploited similar or adjacent corridors.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • Probably not a substantial claim. 21
  • It may state two separate claims as one. 57
  • Probably not a substantial claim. The paper’s conclusions may not depend on it.

    Findingown data
    § 2.3.2 Least Cost Path

    The main drawback of the landscape-based sampling simplification is the loss of localized patterns.

    “Nevertheless, computational tests on smaller samples show that the main drawback of this simplification is the loss of localized patterns, patterns which are not a major concern within this study.”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Jade axes show little to no enhancement in the lowest cost range; the intensity curve is comparatively flat across low-moderate costs and only drifts upward (with wide uncertainty) in the extreme high-cost tail.

    “In contrast, jade axes show little to no enhancement in the lowest cost range; the intensity curve is comparatively flat across low-moderate costs and only drifts upward (with wide uncertainty) in the extreme high-cost tail (Figure 3D).”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    The boxplots illustrate differences in the distribution of 87Sr/86Sr values between Neolithic and Bronze Age sites, though these differences are relatively subtle.

    “The boxplots illustrate differences in the distribution of 87 Sr/ 86 Sr values between Neolithic and Bronze Age sites, though these differences are relatively subtle.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Findingown data
    § 3.1 LCP Analysis

    Neolithic sites show clustering near large rivers, whereas Bronze Age sites do not exhibit the same degree of clustering near rivers.

    “The spatial distribution of Neolithic sites also shows clustering near large rivers, whereas Bronze Age sites do not exhibit the same degree of clustering near rivers.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The archaeological sites and find spots in the dataset are representative of the actual distribution of prehistoric settlement and deposition.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Bronze Age sites exhibit a more stable median (narrower IQR) but a wider overall range of 87Sr/86Sr values.

    “In contrast, the Bronze Age sites exhibit a more stable median, as indicated by a narrower IQR, but the overall range of 87 Sr /86 Sr values is wider, reflecting greater variability in the strontium isotope ratios.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Bronze Age sites exhibit a steeper rise and sharper decline.

    “Bronze Age sites (Figure 3A) exhibit a steeper rise and sharper decline, implying tighter coupling to low-cost corridors overall (sample size caveat noted in the widening envelopes at higher costs).”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Neolithic sites show elevated intensity in the lowest cost range; they occur preferentially in areas that the model identifies as high-mobility corridors.

    “Neolithic sites show elevated intensity in the lowest cost range i.e., they occur preferentially in areas that the model identifies as high-mobility corridors.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Hilted sword find spots mirror the Bronze Age site trend: intensity peaks in the low-cost domain and falls below the null expectation across most higher-cost values.

    “The hilted sword find spots mirror the Bronze Age site trend: intensity peaks in the low-cost domain and falls below the null expectation across most higher-cost values (Figure 3C).”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    The results indicated a negative relationship between corridor density and isotopic variability, with higher variability in areas of low accessibility and reduced variability in areas of high corridor density.

    “The results indicated a negative relationship between corridor density and isotopic variability, with higher variability in areas of low accessibility and reduced variability in areas of high corridor density; a complementary pattern is observed when using distance to corridors.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Neolithic intensity declines across much of the intermediate, high-cost domain but exhibits a secondary rise at moderate costs.

    “Intensity declines across much of the intermediate, high-cost domain but exhibits a secondary rise at moderate costs, suggesting that some Neolithic settlement also extended into more resistive terrain (Figure 3B).”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 3.1 LCP Analysis

    Bronze Age sites are more dispersed and generally located further from high-mobility areas than Neolithic sites.

    “In contrast, Bronze Age sites are more dispersed and generally located further from high-mobility areas.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Jade axes intensity is comparatively flat across low costs and becomes noisy with increasing uncertainty at higher costs.

    “Jade axes (Figure 3D) diverge: intensity is comparatively flat across low costs and becomes noisy with increasing uncertainty at higher costs.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 3.2 Strontium

    Neolithic sites display more constrained inter-individual variability within sites, often consistent with movement inside geologically similar provinces.

    “Neolithic sites display more constrained inter-individual variability within sites, often consistent with movement inside geologically similar provinces, even as those sites concentrate in low-cost corridor terrain (Figures 3 and 5).”
    Quote in the paperSubstantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Findingcitation
    § 5 Conclusions

    Jade axes do not display strong low-cost association; their intensity varies little across the low-cost range and remains patchy.

    “Jade axes do not; their intensity varies little across the low-cost range and remains patchy coherent with previous work that links Alpine jade circulation to contextually structured deposition rather than transport efficiency alone.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 5 Conclusions

    The Bronze Age signal is steeper: site intensity rises sharply in low-cost terrain and falls rapidly with increasing cost, suggesting tighter coupling between settlement and major communication axes during the Bronze Age than in the Neolithic.

    “The Bronze Age signal is steeper: site intensity rises sharply in low-cost terrain and falls rapidly with increasing cost, suggesting tighter coupling between settlement and major communication axes during the Bronze Age than in the Neolithic.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingown data
    § 5 Conclusions

    In the Neolithic, median 87Sr/86Sr values across sites vary more widely than within individual sites, suggesting communities were positioned in geochemically distinct catchments but most individuals within each site derived from similar local environments.

    “In the Neolithic, median 87 Sr/ 86 Sr values across sites vary more widely than within individual sites, suggesting communities were positioned in geochemically distinct catchments but most individuals within each site derived from similar local environments.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Findingown data
    § 5 Conclusions

    The LCP surface identifies a network of low-cost corridors, many aligned with major river valleys that appear to have shaped both site locations placement and the circulation of high-value materials.

    “The LCP surface identifies a network of low-cost corridors, many aligned with major river valleys that appear to have shaped both site locations placement and the circulation of high-value materials.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The LCP cost surface accurately models prehistoric movement ease across the landscape.
  • It may state two separate claims as one.

    Findingreasoning
    § 5 Conclusions

    Bronze Age sites show more uniform site medians yet greater internal variability in individual 87Sr/86Sr values, consistent with selective incorporation of people (or life histories) from multiple geological provinces.

    “Bronze Age sites, in contrast, show more uniform site medians yet greater internal variability in individual 87 Sr/ 86 Sr values, consistent with selective incorporation of people (or life histories) from multiple geological provinces.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Findingreasoning
    § 5 Conclusions

    Neolithic groups positioned settlements within reach of efficient movement routes, but their mobility patterns appear more locally constrained.

    “Neolithic groups positioned settlements within reach of efficient movement routes, yet mobility patterns appear more locally constrained.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim.

    Study design and conductreasoning
    § 2.3.2 Least Cost Path

    To avoid directional bias, the study sampled a grid of points across an enlarged study area minimizing edge effects, such that each point acted as both origin and destination in turn.

    “To avoid directional bias, we sampled a grid of points across an enlarged study area minimizing edge effects, such that each point acted as both origin and destination in turn.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.

    Premisecitation
    § 1 Introduction

    The distribution of Alpine jade axes reflects direct exchange networks rather than down-the-line trade and indicates socio-cultural importance beyond functional use.

    “Their distribution reflects direct exchange networks rather than down-the-line trade and indicates socio-cultural importance beyond functional use, as evidenced by reshaping and re-polishing practices (Pétrequin et al. 2013).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Pétrequin et al. 2013

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim. It may state two separate claims as one.

    Study design and conductreasoning
    § 2.3 Sites

    The study purposefully does not differentiate site types in the LCP analysis, instead focusing on modeling landscape-based mobility potential informed by topography and environmental cost surfaces.

    “The study purposefully does not differentiate site types in the LCP analysis, instead focusing on modeling landscape-based mobility potential informed by topography and environmental cost surfaces.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim.

    Study design and conductreasoning
    § 2.3.1 Strontium

    The study deliberately excluded isoscapes and baseline data to prioritize comparative analysis of individual isotopic values over time.

    “This study focuses on the variation in 87 Sr/ 86 Sr values between the Neolithic and Bronze Age periods, deliberately excluding isoscapes and baseline data to prioritize comparative analysis of individual isotopic values over time.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. It may be too vague to check against evidence.

    Study design and conductnone given
    § 2.3 Sites

    It is as far as is possible based on the available data to be unbiased in our assumptions of where the activity areas of different kinds may have affected the mobility patterns of prehistoric individuals.

    “It is as far as is possible based on the available data to be unbiased in our assumptions of where the activity areas of different kinds may have affected the mobility patterns of prehistoric individuals.”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one.

    Study design and conductreasoning
    § 2.3.2 Least Cost Path

    The landscape-based sampling removes the need to define actual or proven archaeological sites as start/end points and is computationally more efficient than standard FETE.

    “This landscape-based sampling removes the need to define actual or proven archaeological sites as start/end points and is computationally more efficient than standard FETE.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim.

    Study design and conductreasoning
    § 2.3.2 Least Cost Path

    The formal statistical framework (rhohat) strengthens the interpretive robustness of the movement models, an improvement over conventional, visually assessed LCP outputs.

    “This formal statistical framework strengthens the interpretive robustness of our movement models, an improvement over conventional, visually assessed LCP outputs.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Premisecitation
    § 1 Introduction

    Late Bronze Age hilted swords, particularly the Naue II type, trace back to the Eastern Alps and appear widely across Central Europe.

    “Late Bronze Age hilted swords, particularly the Naue II type, trace back to the Eastern Alps and appear widely across Central Europe (Ling et al. 2014, Ling et al. 2019, Melheim et al. 2018, Rassmann 2013).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites Ling et al. 2014

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Ling et al. 2019 source

      Checked before — its earlier verdict is held back until a new check runs.

    • cites Melheim et al. 2018 source
  • It may state two separate claims as one.

    Premisecitation
    § 1 Introduction

    Conventional distribution mapping often emphasizes isolated findspots over continuous spatial trajectories, limiting interpretations of dynamic mobility processes.

    “Conventional distribution mapping often emphasizes isolated findspots over continuous spatial trajectories, limiting interpretations of dynamic mobility processes (Aldred 2021).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Aldred 2021

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Inter-site variation likely reflects the occupation of distinct geological zones, consistent with relatively localized movement patterns across heterogeneous landscapes.

    “This inter-site variation likely reflects the occupation of distinct geological zones, consistent with relatively localized movement patterns across heterogeneous landscapes.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    Bronze Age settlement and especially hilted sword distributions became increasingly corridor-focused.

    “whereas Bronze Age settlement and especially hilted sword distributions became increasingly corridor-focused, consistent with intensified movement networks, exchange traffic, or emergent sociopolitical structuring around major routes.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Depressed intensity exactly at cost ≈0 should not be read as avoidance; the behavioral signal lies in the elevated intensities spanning the immediately adjacent low-cost envelope.

    “Consequently, depressed intensity exactly at cost ≈0 should not be read as avoidance; the behavioral signal lies in the elevated intensities spanning the immediately adjacent low-cost envelope the landscape band that would have offered energetically efficient travel, communication, and exchange.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    This is consistent with intensified movement networks, exchange traffic, or emergent sociopolitical structuring around major routes.

    “consistent with intensified movement networks, exchange traffic, or emergent sociopolitical structuring around major routes.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.

    Premisecitation
    § 1.1 Previous Research

    Isotopic analyses of human remains associated with Bronze Age elite burials reveal the potential presence of non-local individuals, supporting interpretations of long-distance mobility linked to sociopolitical networks.

    “Isotopic analyses of human remains associated with Bronze Age elite burials reveal the potential presence of non-local individuals, supporting interpretations of long-distance mobility linked to sociopolitical networks (Frei et al. 2019, Reiter andFrei 2015).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Frei et al. 2019 source

      Checked before — its earlier verdict is held back until a new check runs.

    • cites Reiter andFrei 2015

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    Jade axes decouple from this pattern, implying alternative logics of deposition that were less sensitive to modeled travel efficiency.

    “Jade axes decouple from this pattern, implying alternative logics of deposition that were less sensitive to modeled travel efficiency.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    The observed differences between Neolithic and Bronze Age patterns may reflect not only altered mobility structures but also a fundamental shift in depositional practices and their social meanings.

    “Thus, the observed differences between Neolithic and Bronze Age patterns may reflect not only altered mobility structures but also a fundamental shift in depositional practices and their social meanings.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Premisecitation
    § 3.2 Strontium

    Paleopathological data indicate declining per-capita skeletal injury relative to Neolithic peaks associated with enclosure building and the onset of copper metallurgy; injury frequencies drop toward the Late Neolithic and into the Bronze Age even as fortifications increase.

    “Although Bronze Age swords proliferate materially, paleopathological data indicate declining per-capita skeletal injury relative to Neolithic peaks associated with enclosure building and the onset of copper metallurgy; injury frequencies drop toward the Late Neolithic and into the Bronze Age even as fortifications increase (Müller et al. 2024).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Müller et al. 2024 source
  • Probably not a substantial claim. The paper’s conclusions may not depend on it.

    Premisecitation
    § 1 Introduction

    Use-wear and evidence for interpersonal violence indicate Bronze Age swords also served practical combat functions.

    “Although primarily prestige objects, use-wear and evidence for interpersonal violence indicate swords also served practical combat functions (Horn andKristiansen 2018, Kristiansen 2002).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Horn andKristiansen 2018

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Kristiansen 2002 source
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Mobility corridors structured a significant component of Neolithic land use, but site placement was not confined to them.

    “This two-mode tendency implies that while mobility corridors structured a significant component of Neolithic land use, site placement was not confined to them; other ecological or social criteria likely mediated occupation away from the most efficient routes.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Premisecitation
    § 1 Introduction

    Metallurgical and isotopic data suggest complex production and exchange systems involving multiple ore sources, reflecting extensive social and economic networks.

    “Metallurgical and isotopic data suggest complex production and exchange systems involving multiple ore sources, reflecting extensive social and economic networks (Frei et al. 2019, Ling et al. 2014, Nørgaard 2018).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites Frei et al. 2019 source

      Checked before — its earlier verdict is held back until a new check runs.

    • cites Ling et al. 2014

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Nørgaard 2018 source
  • It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    Many Bronze Age communities were situated within geologically similar areas or catchment zones increasingly overlapped.

    “implying that many communities were situated within geologically similar areas or that the catchment zones of different groups increasingly overlapped.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Jade axe deposition was episodic, symbolic, and selectively tied to landscape features.

    “supporting the interpretation that deposition was episodic, symbolic, and selectively tied to landscape features.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Neolithic communities were internally homogenous in strontium isotope signatures, pointing to residential stability and limited integration of individuals from different isotopic regions.

    “In other words, while Neolithic communities may have differed substantially in their geological settings, each community was internally homogenous in terms of strontium isotope signatures, pointing to residential stability and limited integration of individuals from different isotopic regions.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Neolithic communities were regionally mobile and positioned to take advantage of energetically efficient movement corridors.

    “Together, these patterns suggest regionally mobile Neolithic communities positioned to take advantage of energetically efficient movement corridors.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    Neolithic sites indicate strong engagement with high-mobility terrain yet tolerance for settlement in more resistive areas where ecological opportunity, ritual practice, or social factors outweighed travel efficiency.

    “indicating strong engagement with high-mobility terrain yet tolerance for settlement in more resistive areas where ecological opportunity, ritual practice, or social factors outweighed travel efficiency.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationcitation
    § 3.2 Strontium

    This decoupling between armed display and bodily trauma suggests changing conflict regimes, deterrence, strategies for conflict resolution ritualized combat, or alliance maintenance, rather than uniformly escalating interpersonal violence.

    “This decoupling between armed display and bodily trauma suggests changing conflict regimes, deterrence, strategies for conflict resolution ritualized combat, or alliance maintenance, rather than uniformly escalating interpersonal violence (Kneisel et al. 2024, Müller et al. 2024).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Kneisel et al. 2024

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Müller et al. 2024 source
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.1 LCP Analysis

    These findings point towards potential differences in the spatial organization of Neolithic and Bronze Age sites, highlighting varying patterns of site selection and accessibility between the two periods.

    “These findings point towards potential differences in the spatial organization of Neolithic and Bronze Age sites, highlighting varying patterns of site selection and accessibility between the two periods.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Premisecitation
    § 3.2 Strontium

    Alpine jade axes were transported widely but deposited in socially charged settings according to ritualized logics rather than utilitarian routing.

    “This accords with long-standing work showing that Alpine jade axes (Monte Viso and related sources) were transported widely but deposited in socially charged settings, rock shelters, boulder forecourts, watery locales, graves, hoards, according to ritualized logics rather than utilitarian routing (D'amico 2005, Pétrequin et al. 2013, Pétrequin et al. 2015).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites D'amico 2005 source
    • cites Pétrequin et al. 2013

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Pétrequin et al. 2015 source
  • Probably not a substantial claim.

    Premisecitation
    § 1 Introduction

    Reconstructing prehistoric movement pathways remains methodologically challenging.

    “Despite extensive archaeological research into trade and exchange, reconstructing prehistoric movement pathways remains methodologically challenging (Anthony 1990, Furholt 2018, Furholt 2021, Kintigh et al. 2014, Suchowska-Ducke 2015).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites Anthony 1990 source
    • cites Furholt 2018

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Furholt 2021 source

      Checked before — its earlier verdict is held back until a new check runs.

  • Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it. It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    This may signal an increasing reliance on established communication/exchange routes or a narrowing of habitable/strategic locations linked to sociopolitical integration along the river corridors.

    “This may signal an increasing reliance on established communication/exchange routes or a narrowing of habitable/strategic locations linked to sociopolitical integration along the river corridors.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    This may reflect subtle changes in regional connectivity, territorial organization, or land-use strategies that led to greater convergence in the geological zones occupied.

    “This may reflect subtle changes in regional connectivity, territorial organization, or land-use strategies that led to greater convergence in the geological zones occupied.”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    This indicates a slightly higher degree of individual mobility or the presence of people from different geological backgrounds within single sites.

    “indicating a slightly higher degree of individual mobility or the presence of people from different geological backgrounds within single sites.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    Neolithic occupation engaged mobility corridors but was more dispersed into costlier terrain.

    “Neolithic occupation engaged mobility corridors but was more dispersed into costlier terrain, whereas Bronze Age settlement and especially hilted sword distributions became increasingly corridor-focused, consistent with intensified movement networks, exchange traffic, or emergent sociopolitical structuring around major routes.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    This relationship is consistent with the possibility that enhanced connectivity along movement corridors may reduce locally constrained isotopic variability, while relative isolation accentuates it.

    “Although this relationship is not commonly addressed in strontium isotope studies and is therefore presented here as exploratory, it is consistent with the possibility that enhanced connectivity along movement corridors may reduce locally constrained isotopic variability, while relative isolation accentuates it.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. It may state two separate claims as one.

    Premisecitation
    § 1 Introduction

    Human and object mobility have often been analyzed independently, since the movement of artifacts does not necessarily mirror the movement or identity of the people associated with them, even though artifact transport ultimately depends on human agency.

    “Consequently, human and object mobility have often been analyzed independently, since the movement of artifacts does not necessarily mirror the movement or identity of the people associated with them, even though artifact transport ultimately depends on human agency (Braudrick andGrant 2000, Figliozzi andJennings 2020).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Braudrick andGrant 2000

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Figliozzi andJennings 2020

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    It may reflect incremental increases in mobility, connectivity, and changes in community structuring.

    “it may reflect incremental increases in mobility, connectivity, and changes in community structuring.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationown data
    § 3.2 Strontium

    The Bronze Age saw a broader spread of 87Sr/86Sr values, potentially indicating more diverse sources of strontium.

    “This difference suggests that while the central values (medians) of 87 Sr /86 Sr were more variable in the Neolithic period, the Bronze Age saw a broader spread of values, potentially indicating more diverse sources of strontium.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: 87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    This suggests low individual-level mobility within sites and limited incorporation of non-local individuals.

    “This suggests low individual-level mobility within sites and limited incorporation of non-local individuals.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim.

    Interpretationown data
    § 3.2 Strontium

    The observed covariate effects are sufficiently patterned to motivate targeted hypothesis testing within this dataset.

    “however, the observed covariate effects are sufficiently patterned to motivate targeted hypothesis testing within this dataset.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    This implies integration across more geologically varied source regions and slightly wider or more frequent long-distance connections.

    “implying integration across more geologically varied source regions and, by extension, slightly wider or more frequent long-distance connections (Figures 6 and 7).”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    Neolithic acquisition networks and depositional grammars appear only partially coupled with pathways of movement, whereas by the Bronze Age, circulation and deposition became more spatially aligned along the major corridors of exchange.

    “Neolithic acquisition networks and depositional grammars appear only partially coupled with pathways of movement, whereas by the Bronze Age, circulation and deposition became more spatially aligned along the major corridors of exchange.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. The paper may give no reason why it holds.

    Study design and conductnone given
    § 5 Conclusions

    87Sr/86Sr comparability rests on consistent baseline calibration and diagenesis screening.

    “87 Sr/ 86 Sr comparability rests on consistent baseline calibration and diagenesis screening.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it.

    Study design and conductnone given
    § 5 Conclusions

    Sample sizes in key categories are small.

    “Despite small sample sizes in key categories”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.

    Study design and conductnone given
    § 5 Conclusions

    LCP results depend on input surface parameterization, and different friction models could shift corridor geometry.

    “LCP results depend on input surface parameterization; different friction models (hydrology weighting, slope cost functions, seasonal passability) could shift corridor geometry.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.

    Study design and conductnone given
    § 5 Conclusions

    Rhohat confidence envelopes widen where data are sparse.

    “Rhohat confidence envelopes widen where data are sparse.”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 3.2 Strontium

    The rhohat LCP results, combined with 87Sr/86Sr mobility data, portray a landscape in which corridors supported communication, but temporally-variant social rules, politics, deposition traditions, territorial display, alliance politics, resource control had a great say in who and what moved where across the Neolithic-Bronze Age transition.

    “The rhohat LCP results, combined with 87 Sr/ 86 Sr mobility data portray, therefore, a landscape in which corridors supported communication, but temporally-variant social rules, politics, deposition traditions, territorial display, alliance politics, resource control had a great say in who and what moved where across the Neolithic-Bronze Age transition.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 5 Conclusions

    Proximity to mobility corridors facilitated access but did not dictate where meaning-laden objects were ultimately placed.

    “That contrast indicates that proximity to mobility corridors facilitated access but did not dictate where meaning-laden objects were ultimately placed.”
    Quote in the paperSubstantial claim
  • It may state two separate claims as one.

    Interpretationreasoning
    § 5 Conclusions

    This internal heterogeneity aligns with the stronger corridor association observed in the Bronze Age rhohat curve and with archaeological evidence for expanded exchange networks.

    “This internal heterogeneity aligns with the stronger corridor association observed in the Bronze Age rhohat curve and with archaeological evidence for expanded exchange networks.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it.

    Premisecitation
    § 5 Conclusions

    All reconstructions rely on present-day quantifiable data to approximate past decision landscapes.

    “As Kempf (2023) notes, all reconstructions rely on present-day quantifiable data to approximate past decision landscapes.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Kempf (2023) source

      Checked before — its earlier verdict is held back until a new check runs.

  • It may state two separate claims as one.

    Interpretationreasoning
    § 5 Conclusions

    The results indicate continuity in the strategic value of landscape connectivity across the Neolithic-Bronze Age transition, but transformation in how that connectivity was socially mobilized.

    “Taken together, these results indicate continuity in the strategic value of landscape connectivity across the Neolithic-Bronze Age transition but transformation in how that connectivity was socially mobilized.”
    Quote in the paperSubstantial claim
69 of 69
  • The paper relies on this without support.

    Artifact distribution can serve as a proxy for broader spatial patterns of connectivity.

    “Our approach therefore does not treat their distribution as direct evidence of movement but as a proxy for broader spatial patterns of connectivity, often structured by natural corridors such as river valleys and passes.”
  • The paper relies on this without support.

    Least-Cost Path models can identify prehistoric movement corridors.

    “In archaeology, LCPs have been widely applied to explore movement and connectivity (Howey 2011, Llobera 2011, Verhagen and Jeneson 2012, White and Barber 2012, Whitley and Hicks 2003).”
  • The paper relies on this without support.

    87Sr/86Sr isotopic data from skeletal remains provide direct evidence of individual mobility.

    “Human 87 Sr/ 86 Sr isotopic data were derived from skeletal remains excavated at these locations, providing direct evidence of individual mobility across the study region.”
  • The paper relies on this without support.

    The 56 sites cover a broad temporal and spatial range sufficient to investigate mobility patterns across the Neolithic to Bronze Age transition.

    “These sites cover a broad temporal and spatial range, enabling an investigation of mobility patterns across the Neolithic to Bronze Age transition.”
  • The paper relies on this without support.

    The KDE-based density surface represents high-mobility corridors.

    “Using the KDE-based density surface, we derived a distance surface to high-use corridors and used it as a predictor variable.”
  • The paper relies on this without support.

    The physical landscape, including terrain ruggedness and resource distribution, structured prehistoric movement and connectivity across prehistoric Germany.

    “This approach allows for a broad characterization of how the physical landscape, including factors such as terrain ruggedness and resource distribution, may have structured movement and connectivity across prehistoric Germany.”
  • The paper relies on this without support.

    The LCP cost surface accurately models prehistoric movement ease across the landscape.

    “Our rhohat models against accumulated Least Cost Path (LCP) cost values (Figure 3) show that archaeological patterning across southern and central Germany is structured by differential engagement with low-cost mobility terrain linking the Rhine, Danube, and associated valleys.”
  • The paper relies on this without support.

    87Sr/86Sr isotopic ratios in human remains reliably indicate individual mobility or non-local origin.

    “The 87 Sr/ 86 Sr isotope evidence provides an independent mobility proxy that aligns with the cost-based spatial signal.”
  • The paper relies on this without support.

    The archaeological sites and find spots in the dataset are representative of the actual distribution of prehistoric settlement and deposition.

    “The pattern indicates that Bronze Age settlement in the present dataset was more tightly coupled to high-mobility terrain than the Neolithic pattern.”
9 of 9

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Opposite descriptions of Bronze Age sites' corridor proximity

    Major

    One results passage says Bronze Age sites are generally farther from high-mobility areas, while a later passage says they are more strongly concentrated in the lowest-cost, high-mobility terrain than Neolithic sites. These descriptions support opposite interpretations of the Bronze Age site pattern.

  • Hilted-sword study dates do not overlap

    Minor

    The introduction dates the hilted swords modeled in the study to 2,200-1,600 cal BCE, whereas the materials section says the overall range of the hilted swords included is roughly 1,350-750 cal BC. The two stated ranges do not overlap.

2 of 2

Citations

Cites

Flagged first, then by citations

Research works printed but not linked: 10

  1. Bakker, J.A. (2010). Megalithic research in the Netherlands, 1547-1911: From“ giant’s Beds” and“ pillars of Hercules” to Aacurate Iivestigations. Sidestone Press, Leiden.
  2. Chapman, J., Gaydarska, B., Skafida, E., and Souvatzi, S. (2011). Personhood and the life cycle of Spondylus rings: an example from Late Neolithic, Greece. In: Ifantidis, F. and Nikolaidou, M. (Eds.), Spondylus in prehistory : new data and approaches – contributions to the archaeology of shell technologies, Archaeopress, 139–160.
  3. Darvill, T. (2008). The concise Oxford dictionary of archaeology, 2. OUP Oxford, Oxford.
  4. Helms, M.W. (1994). Essay on objects: interpretations of distance made tangible. In: Implicit understandings: observing, reporting, and reflecting on the encounters between Europeans and other peoples in the early modern era. Cambridge University Press, Cambridge, pp. 355–377.
  5. Hofmann, D., Pechtl, J., Bentley, R.A., Bickle, P., Fibiger, L., Grupe, G., Hamilton, J., Hedges, R., Schultz, M., and Whittle, A. (2013). Southern Bavaria. Oxbow, Oxford.
  6. Kneisel, J., Loy, A.K., Nakoinz, O., Schaefer-DI Maida, S., and Jung, M. (2024). Konfliktvermeidung und Konfliktbeilegung in der Südzone des nordischen Kreises und Polen. Würzburg University Press, Würzburg.
  7. Kristiansen, K. and Larsson, T.B. (2005). The rise of Bronze Age society: travels, transmissions and transformations. Cambridge University Press, Cambridge.
  8. Pétrequin, P., Cassen, S., Errera, M., Klassen, L., Pétrequin, A.-M., and Sheridan, A. (2013). The value of things: the production and circulation of Alpine jade axes during the 5th–4th millennia in a European perspective. In: Economic archaeology: from structure to performance in European archaeology. Rudolf Habelt GMBH, Bonn, pp. 65–82.
  9. Rassmann, C. (2013). Crossing blades and crossing borders: a Re-examination of octagonal-hilted swords and their paradigms, Ph.D. Thesis. Faculty of Arts, University of Aarhus. Aarhus
  10. Reiter, S.S. and Frei, K.M. (2015). Migration and identity at the early Bronze Age cemetery of Jelsovce, Southwest Slovakia: The strontium evidence. In: Forging identities. British Archaeological Reports, Oxford.

Cited by

Still being checked.

Metadata

Authors
Schjerven, N., Bilotti, G., Kempf, M., & Reiter, S. S.
Affiliations
  • University of Gothenburg (SE)
  • Aarhus University (DK)
  • Department of Geography , University of Cambridge , Cambridge , UK
  • National Museum of Denmark (DK)
Venue
OPEN Archaeology
Published
2026-01-01
Volume
12
Issue
1
ISSN
2300-6560 (ISSN-L)
OpenAlex
W7129695464
Cited by
0
References
73
FWCI
0.00
Type
journal article
Language
en
Open access
Locations
  • Open Archaeology (publishedVersion, cc-by)
  • Ministry of Culture Research Portal (publishedVersion, cc-by)
  • Apollo (University of Cambridge) (acceptedVersion)
  • Apollo (University of Cambridge) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Scopus (Elsevier) (submittedVersion, other-oa)
Funders
  • National Science Foundation
  • European Commission (HORIZON2020)
  • Deutsche Forschungsgemeinschaft (SFB 1266, 290391021)
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (217358)
Topics
  • Social Sciences › Arts and Humanities › Archeology (arts and humanities) › Archaeological and Geological Studies
  • Social Sciences › Arts and Humanities › Archeology (arts and humanities) › Ancient and Medieval Archaeology Studies
  • Social Sciences › Archeology › Archaeology and ancient environmental studies
Keywords
87Sr/86Sr isotopes, movement corridors, least-cost path analysis, Late Neolithic, Bronze Age, trade networks, long-distance exchange, artifact distribution, site distribution, landscape modeling

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