Cited by 9Amazonian Archaeology and EthnohistoryArchaeological Research and ProtectionArchaeology and Cultural Heritage

The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index; none of the 15 sources its claims cite is checked for support yet.

Geolocation of unpublished archaeological sites in the Peruvian Amazon

Open access
Coomes, Oliver T., Rivas Panduro, Santiago, Abizaid, Christian, Takasaki, Yoshito·2021·Scientific Data

Abstract

Published maps identifying archaeological sites in the Amazon basin show a paucity of sites in western Amazonia compared to the Brazilian Amazon. Whereas fewer than two dozen are identified for the Peruvian Amazon on basin-wide maps, a thorough review of unpublished archival material held by the Ministry of Culture of Peru and other sources revealed more than 400 known but unpublished sites in the Department of Loreto, challenging the notion that the region was sparsely occupied in prehistory. Our database provides the geolocation of each site and corresponding references for use by scientists seeking to better understand regional Pre-Columbian human occupation and settlement, cultural change, resource use and their landscape legacies. These data are foundational not only to the development of a richer understanding of prehistory and historical ecology of the Amazon basin but importantly for informing current land use, forest conservation and development policies as well as initiatives to support indigenous land and cultural rights in Amazonia.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

A data descriptor compiling 415 known but largely unpublished archaeological sites in the Department of Loreto, Peruvian Amazon, with geolocations and references. The dataset challenges published maps showing fewer than two dozen Peruvian Amazon sites and argues western Amazonia was not sparsely occupied in prehistory.

Key findings

  • The database contains 415 archaeological sites in Loreto, an area of 368,851 km², compared with fewer than two dozen sites identified for the Peruvian Amazon on basin-wide published maps.
  • Sites are distributed across Loreto’s provinces, with the largest counts in Loreto province (134 sites, 33% of the total), Datem del Marañón (115, 28%), Alto Amazonas (62, 15%), and Maynas (59, 14%); smaller counts are reported for Ucayali (23, 6%), Requena (9, 2%), Mariscal Ramón Castilla (7, 2%), and Putumayo (6, 1%).
  • Of the 415 sites, 36% are registered with the Ministerio de Cultura and an additional 13% have a formal site code.
  • In November 2020 verification, 22 sites (5%) were found to lie in the active channel of a nearby river, and 29 sites were located on the river’s edge; 163 sites were documented as part of oil exploration and road-building impact assessments and field monitoring.

Methods

  • The database was compiled from a thorough review of published international and national literature and unpublished materials held by the Ministerio de Cultura in Iquitos and Lima and other institutions.
  • Sites were progressively catalogued by archaeologist Santiago Rivas Panduro over nearly 20 years; most references are unpublished site visit and reconnaissance reports, environmental impact statements, conference presentations, and oral testimonies.
  • The database is stored at figshare as an Excel worksheet, with each record corresponding to one site and comprising 12 fields, including site name, code, department, province, district, longitude, latitude, elevation, site location notes, and references. Site locations were checked using Google Earth imagery in November 2020.

Limitations

  • The paper states three limitations: potential site destruction by fluvio-geomorphological change and development activities; the site list is partial, with more sites likely undocumented; and limited descriptive information is provided on site characteristics, archaeological tradition or phase, and material culture.
  • The paper states that longitude and latitude are approximate only, except where indicated as measured on-site, and that elevation from Google Earth is approximate.
  • The text makes evident that very few sites have been subjected to controlled investigation, and many references are unpublished or based on oral testimonies.

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

Integrity signals

Registry

Crossref · 10.1038/s41597-021-01067-7

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

0 of 15 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    A total of 163 sites were documented as part of impact assessments and field monitoring of oil exploration and road building activities.

    “A total of 163 sites were documented as part of impact assessments and field monitoring of oil exploration and road building activities”
    Quote in the paperNot a substantial claim
  • Findingown data

    Of the 415 sites, 22 sites (5%) were found now to lie in the active channel of the nearby river, reflecting changes in the river course since the site was originally reported.

    “Of the 415 sites, 22 sites (5%) were found now to lie in the active channel of the nearby river, reflecting changes in the river course since the site was originally reported”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: Google Earth imagery from November 2020 accurately reflects the locations of the archaeological sites.
  • Findingnone given

    Most archaeological sites in the database are located along or near rivers that vary in their exposure to riverbank erosion and aggradation.

    “Most archaeological sites located along or near rivers which vary in their exposure to riverbank erosion and aggradation.”
    Quote in the paperNot a substantial claim
  • Findingown data

    The current listing of georeferenced unpublished sites reported is the most comprehensive to date.

    “the current listing of georeferenced unpublished sites reported is the most comprehensive to date”
    Quote in the paperSubstantial claim
  • Findingnone given

    Many sites were encountered by accident, often during road building and petroleum exploration activities including the running of seismic lines, road construction, and well drilling.

    “Many sites were encountered by accident, often during road building and petroleum exploration activities including the running of seismic lines, road construction, and well drilling.”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one. 11
  • Probably not a substantial claim. 8
  • The quote only partly states this claim. 2
  • It may state two separate claims as one.

    Findingown data

    Of the 415 sites, 36% are registered with the Ministerio de Cultura and an additional 13% have a formal site code.

    “Of the 415 sites, 36% are registered with the Ministerio de Cultura and an additional 13% have a formal site code.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim. The paper’s conclusions may not depend on it.

    Findingnone given

    Limited information is provided in the database of site characteristics, archaeological tradition or phase, or material culture.

    “Limited information is provided in the database of site characteristics, archaeological tradition or phase, or material culture”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one. The quote only partly states this claim.

    Findingown data

    The database comprises 415 archaeological sites documented to date in the Department of Loreto, Peruvian Amazon (more than 400 known but unpublished sites).

    “a thorough review of unpublished archival material held by the Ministry of Culture of Peru and other sources revealed more than 400 known but unpublished sites in the Department of Loreto”
    • Also stated in: § Background & Summary · plain
      “Our database comprises a listing of 415 archaeological sites documented to date in the Department of Loreto in the Peruvian Amazon.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: The unpublished reports and oral testimonies used to compile the database accurately record the locations of archaeological sites.
  • It may state two separate claims as one.

    Findingnone given

    Very few of the sites have yet been subjected to controlled investigation and most references are found in unpublished site visit and reconnaissance reports, environmental impact statements, conference presentations, and oral testimonies.

    “Very few of the sites have yet been subjected to controlled investigation and most references are found in unpublished site visit and reconnaissance reports, environmental impact statements, conference presentations, and oral testimonies.”
    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

    Lathrap's view of site instability due to river dynamics has been echoed by his students to explain the paucity of prehistoric settlement and terra preta soils, and may have dampened international interest in pursuing archaeological sites in the Peruvian Amazon.

    “Lathrap’s view of the salience of site instability due to river dynamics has been echoed by his students to explain the paucity of prehistoric settlement33 and terra preta soils27, and may have dampened international interest in the pursuit of archaeological sites in the Peruvian Amazon.”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [33] DeBoer, W. R. Buffer zones in the cultural ecology of aboriginal Amazonia: an ethnohistorical approach. Am. Antiquity. 46, 364–377, https://doi.org/10.2307/280216 (1981). source
    • cites [27] Myers, T.P. Dark Earth in Upper Amazon. in Amazonian Dark Earths: Explorations in Space and Time (ed. Glaser, B. & Woods, W.I.) 67-94 (Springer-Verlag, Berlin, 2004). source
  • It may state two separate claims as one.

    Interpretationnone given

    The number of sites reported in the database is the minimum number known; other known but unreported sites are likely to exist, and still many others remain to be documented.

    “We consider the number of sites reported to be the minimum number known; other known but unreported sites are likely to exist, and still many others remain to be documented.”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one. The quote only partly states this claim.

    Study design and conductnone given

    The data were compiled over nearly 20 years by a professional archaeologist (SRP) who worked in Iquitos for the Ministerio de Cultura during the early 2000s and later as a consulting archaeologist.

    “These sites were progressively catalogued by Santiago Rivas Panduro (SRP, now deceased), an archaeologist who worked in Iquitos for the Ministerio de Cultura during the early 2000s and later as a consulting archaeologist.”
    • Also stated in: § Technical Validation · plain
      “The data were compiled over a period of nearly 20 years by a professional archaeologist (SRP)”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim.

    Study design and conductown data

    In November 2020, the accuracy of each site location was checked using Google Earth imagery.

    “In November 2020, the accuracy of each site location was checked using Google Earth imagery.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Google Earth imagery from November 2020 accurately reflects the locations of the archaeological sites.
  • Probably not a substantial claim. The paper’s conclusions may not depend on it.

    Premisecitation

    Lathrap identified two primary threats to prehistoric sites along major rivers: floodplain aggradation and rapid river meandering.

    “Donald Lathrap identified two primary threats to prehistoric sites along the major rivers – floodplain aggradation which drowns sites; and, rapid river meandering destroys floodplain sites and erodes river bluffs32.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [32] Lathrap, D. Aboriginal occupation and changes in river channel on the central Ucayali, Peru. Am. Antiquity. 33, 62–79, https://doi.org/10.2307/277773 (1968). source
  • It may state two separate claims as one.

    Premisecitation

    The lowlands of the Peruvian Amazon have some of the most active meandering rivers in the world, making it difficult to locate and preserve archaeological sites.

    “the lowlands of the Peruvian Amazon have some of the most active meandering rivers in the world30,31, making it difficult to locate and preserve archeological sites.”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [30] Melack, J. M. & Hess, L. L. Remote sensing of the distribution and extent of wetlands in the Amazon basin. In Amazonian Floodplain Forests: Ecophysiology, Biodiversity and Sustainable Management (ed. Junk, W. J., Piedade, M. T. F., Wittmann, Schöngart, F. & Parolin, P.) Ecol. Stud., 210, 43-59 (Springer, Dordrecht, 2010). source
    • cites [31] Kalliola, R. et al. Upper Amazon channel migration: implications for vegetation perturbance and succession using bitemporal Landsat MSS Images. Naturwissenschaften. 79, 75–79, https://doi.org/10.1007/BF01131806 (1992). source
  • Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it.

    Interpretationreasoning

    The current listing suggests the promise for new sites remain to be encountered and documented.

    “suggests the promise for new sites remain to be encountered and documented.”
    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

    Longitude and latitude are recorded in decimal degrees and are approximate only, except where indicated as being measured on-site.

    ““Longitude” and “Latitude” are recorded in decimal degrees and are approximate only, except where indicated as being measured on-site”
    Quote in the paperNot a substantial claim
  • It may state two separate claims as one.

    Interpretationown data

    Some sites identified in the database are prone to destruction by fluvio-geomorphological change and/or development activities and thus may no longer exist.

    “Some sites identified in the database are prone to destruction by fluvio-geomorphological change and/or development activities and thus may no longer exist.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim. It may state two separate claims as one.

    Interpretationreasoning

    The list of archaeological sites reported in the database for the Peruvian Amazon is partial only; more sites remain to be documented through further field reconnaissance and excavation.

    “The list of archaeological sites reported in the database for the Peruvian Amazon is partial only, as we anticipate that more sites remain to be documented through further field reconnaissance and excavation.”
    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.

    Study design and conductreasoning

    Elevation (Google Earth) is recorded in metres above sea level according to Google Earth and as such is approximate.

    ““Elevation (Google Earth)” is recorded in metres above sea level (asl) according to Google Earth and as such are approximate.”
    Quote in the paperNot a substantial claim
15 of 15
  • The paper relies on this without support.

    The paucity of documented archaeological sites is often used as evidence of a lack of indigenous occupation and thus (pre)historical rights to land and other resources.

    “The paucity of documented archaeological sites is often used as evidence of a lack of indigenous occupation and thus (pre)historical rights to land and other resources.”
  • The paper relies on this without support.

    SRP was considered by his international peers to be the leading archaeologist in the Department of Loreto of Peru.

    “who was considered by his international peers to be the leading archaeologist in the Department of Loreto of Peru.”
  • The paper relies on this without support.

    Google Earth imagery from November 2020 accurately reflects the locations of the archaeological sites.

    “In November 2020, the accuracy of each site location was checked using Google Earth imagery.”
  • The paper relies on this without support.

    The archaeological sites in the database date to pre-Columbian times.

    “challenging the notion that the region was sparsely occupied in prehistory.”
  • The paper relies on this without support.

    The unpublished reports and oral testimonies used to compile the database accurately record the locations of archaeological sites.

    “most references are found in unpublished site visit and reconnaissance reports, environmental impact statements, conference presentations, and oral testimonies.”
5 of 5

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.

  • Loreto province's share of sites is overstated

    Minor

    The table lists 134 sites in Loreto province out of 415 overall. That is 32.29%, which rounds to 32%, not the reported 33%.

    Reported 33 · recomputed 32.289157

  • An additional field is described beyond the stated 12

    Minor

    The Data Records section says each record has 12 fields and enumerates them, but then describes "On-site Measurement" as a separate yes/no item that is not among those 12.

2 of 2

Citations

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Eriksen, L. Nature and culture in prehistoric Amazonia. Using G.I.S. to reconstruct ancient ethnogenic processes from archeology, linguistics, geography, and ethnohistory. Doctoral dissertation (Lund University, Sweden, 2011)

Cited by

Sorted by citations

Metadata

Authors
Coomes, O. T., Rivas Panduro, S., Abizaid, C., & Takasaki, Y.
Affiliations
  • McGill University (CA)
  • University of Toronto (CA)
  • The University of Tokyo (JP)
Corresponding author
Coomes, Oliver T.
Venue
Scientific Data
Published
2021-10-29
Volume
8
Issue
1
Pages
290-290
ISSN
2052-4463 (ISSN-L)
OpenAlex
W3208632558
Cited by
9
References
36
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 3 · 2022: 1
Type
data paper
Language
en
Open access
Locations
  • Scientific Data (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Gouvernement du Canada | Social Sciences and Humanities Research Council of Canada (435-2015-0520, 430-2016-00974)
  • University of Toronto, Arts and Science Tri-Council Bridge Funding Program
  • MEXT | Japan Society for the Promotion of Science (18KK0042, 18H05312)
Topics
  • Social Sciences › Arts and Humanities › History › Amazonian Archaeology and Ethnohistory
  • Social Sciences › Archeology › Archaeological Research and Protection
  • Social Sciences › Arts and Humanities › Archeology (arts and humanities) › Archaeology and Cultural Heritage
Keywords
Peruvian Amazon, Loreto, pre-Columbian settlement, historical ecology, indigenous land rights, forest conservation, land use policy

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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

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Statistics and arithmetic are recomputed, not judged.

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