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dc.contributor.author
Ramirez, Darío Alejandro
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dc.contributor.author
Fabra, Mariana
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dc.contributor.author
Xavier, Samanta
dc.contributor.author
Mayo Iñiguez, Alena
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dc.date.available
2022-09-28T15:52:03Z
dc.date.issued
2021-10
dc.identifier.citation
Ramirez, Darío Alejandro; Fabra, Mariana; Xavier, Samanta; Mayo Iñiguez, Alena; The effects of dehydration and local soil on parasite recovery: A preliminary paleoparasitological evaluation on experimental coprolites; Sage Publications Ltd; Holocene (Seven Oaks); 32; 1-2; 10-2021; 88-93
dc.identifier.issn
0959-6836
dc.identifier.uri
http://hdl.handle.net/11336/170781
dc.description.abstract
Experimental paleoparasitological approaches have been used in order to optimize the methodology previously to the application in archeological samples. In this study we evaluated the action of dehydration and local soil (Central Argentina) on the loss of parasite eggs in experimental coprolites, using two parasitological techniques: spontaneous sedimentation and sucrose-flotation. Experimental coprolites comprised fresh human feces, positive for Hymenolepis nana, Ascaris sp., and Enterobius vermicularis, submitted to controlled artificial dehydration. Experimental coprolites with soil addition were prepared by mixing archeological sediment with equal mass of fresh feces. Helminth eggs were counted and eggs per gram were estimated in each subsample. Statistical analyses were applied to compare subsamples before and after desiccation and with and without addition of soil sediment. The performance of parasitological methods statistically differed, the sucrose flotation technique being the less effective when fresh feces and experimental coprolites were analyzed. Partial deformation of eggs was observed via both techniques only in subsamples containing H. nana eggs. However, this was not seen in Ascaris sp. subsamples, possibly due to eggshell composition. We found that sample desiccation significantly decreased the number of eggs in the experimental coprolites. Mixing archeological sediment with the fecal material also resulted in significantly fewer eggs surviving, independent of desiccation. This shows that climate and soil in which archeological fecal samples are found can strongly influence the survival of parasite eggs from past populations. The small amount of parasite evidence often found in paleoparasitological analyses, including Central Argentina, could be attributed to the action of taphonomic processes rather than to the real absence of infection in these ancient populations. Importantly, the study highlights the role of local soil, confirmed for the first time by empirical data. The research provides valuable insights into the understanding of the paleoparasitological results of the region and of general paleoparasitology.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Sage Publications Ltd
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COPROLITES
dc.subject
HELMINTH EGGS
dc.subject
PARASITE LOAD
dc.subject
PARASITE PRESERVATION
dc.subject
SEDIMENT
dc.subject
TAPHONOMY
dc.subject.classification
Arqueología
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dc.subject.classification
Historia y Arqueología
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dc.subject.classification
HUMANIDADES
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dc.title
The effects of dehydration and local soil on parasite recovery: A preliminary paleoparasitological evaluation on experimental coprolites
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-22T00:42:32Z
dc.journal.volume
32
dc.journal.number
1-2
dc.journal.pagination
88-93
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Ramirez, Darío Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Antropología de Córdoba. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Instituto de Antropología de Córdoba; Argentina
dc.description.fil
Fil: Fabra, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Antropología de Córdoba. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Instituto de Antropología de Córdoba; Argentina
dc.description.fil
Fil: Xavier, Samanta. Instituto Oswaldo Cruz; Brasil
dc.description.fil
Fil: Mayo Iñiguez, Alena. Instituto Oswaldo Cruz; Brasil
dc.journal.title
Holocene (Seven Oaks)
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journals.sagepub.com/doi/10.1177/09596836211049981
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1177/09596836211049981
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