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Late glacial through Early Holocene environments inferred using pollen from coprolites and sediments recovered from Paisley Caves, Oregon

Published online by Cambridge University Press:  11 September 2023

Chantel V. Saban Open the ORCID record for Chantel V. Saban [Opens in a new window] ,
Erin M. Herring ,
Dennis L. Jenkins  and
Daniel G. Gavin Open the ORCID record for Daniel G. Gavin [Opens in a new window]
Chantel V. Saban*
Affiliation:
Department of Geography, University of Oregon, Eugene, OR 97403, USA
Erin M. Herring
Affiliation:
Department of Geography, University of Oregon, Eugene, OR 97403, USA
Dennis L. Jenkins
Affiliation:
Museum of Natural and Cultural History, University of Oregon, Eugene, OR 97403, USA
Daniel G. Gavin
Affiliation:
Department of Geography, University of Oregon, Eugene, OR 97403, USA
*
*Corresponding author Chantel V. Saban Email: csaban@uoregon.edu
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Abstract

The Paisley Cave archeological site in the Northern Great Basin has provided a rich archaeological record from 13,000 to 6000 cal yr BP, including abundant mammalian coprolites preserved in a well-dated stratigraphy. Here we analyze and contrast pollen from within coprolites and pollen in associated sediments to examine vegetation history and assess whether coprolite pollen provides unique information with respect to the coprolite producer, such as the use of specific habitats, foods, or water sources. We found that the dissimilarity of pollen assemblages between coprolites and associated sediments was greater than the serial dissimilarity between stratigraphically adjacent samples within either group. Serial dissimilarity within types was not greater for coprolites than sediments, as would be expected if there were unique pollen signatures derived from the short period (1–2 days) represented by each coprolite. Compared with sediment pollen assemblages, the coprolites had higher abundances of lighter pollen types, and some individual samples were high in wetland taxa (especially Typha). Our results are consistent with coprolite pollen representing short time periods collected as a mammal moves on the landscape, whereas sediment pollen reflects longer time periods and more regional vegetation indicators.

Keywords

PollenCoproliteSedimentCavesPaisley CavesNorthern Great BasinNorth AmericaLate glacialEarly HoloceneFire regimensOrdinationNMDS
Type
Research Article
Information
Quaternary Research , Volume 116 , November 2023 , pp. 78 - 95
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Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of Quaternary Research Center

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