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Trichurid nematodes from South American Camelid: an approach to native assemblages through the parasitology of archaeological sites

Published online by Cambridge University Press:  22 June 2023

M.H. Fugassa*
Affiliation:
Laboratorio de Parasitología de Sitios Arqueológicos, Universidad Nacional de Mar del Plata-CONICET, Buenos Aires, Argentina
M.M. Cafrune
Affiliation:
Instituto Nacional de Tecnología Agropecuaria (INTA), Centro de Investigaciones Agropecuarias, Instituto de Investigación Animal del Chaco Semiárido, Salta, Argentina
*
Corresponding author: M.H. Fugassa; Email: mhfugassa@gmail.com

Abstract

To gain insights into the trichurid diversity in pre-Hispanic remains of South American camelids (SACs), as well as into modern SAC populations, a bibliographic search was carried out to find parasitological studies. Results showed that a total of 17 studies were performed at archaeological and paleontological sites, in which a total of 213 samples were examined. The sample set was used as the unit of analysis, and 83% of 52 pre-Hispanic sample sets were positive for parasites. Parasitological studies confirmed the pre-Hispanic presence of diverse trichurids: two Trichuris species and capillariid eggs with morphological differences that allowed them to be assigned to three different species. Currently, the richness of the native trichurid assemblages in SACs has been extended by the inclusion of two species (Trichuris sp. 2 and Capillariinae gen. sp. 1). Modern T. tenuis Chandler, 1930, considered SAC-specific, would have invaded SAC populations during the European colonization. The estimate of regional and temporal trichurid prevalence and paleoecological information allowed us to propose a possible origin for some of them. Although the present analysis is exploratory, it should stimulate future studies about the biogeographic history of SAC helminths, provide relevant information to improve descriptions of the Holocene ecology, and identify threatened helminths.

Type
Research Paper
Copyright
© The Author(s), 2023. Published by Cambridge University Press

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