Comparison of Enamel Microstructure of Ictidomys Tridecemlineatus Formed during Hibernation versus the Active Season
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Ground squirrel incisors grow continuously, preserving a record of their most recent weeks of life. Previous research demonstrated that an abnormality in the surface of incisor enamel and dentin of thirteen-lined ground squirrels (Ictidomys tridecemlineatus) corresponded with hibernation. Using scanning electron microscopy, we compared internal microstructure of incisor enamel deposited during and outside of hibernation to determine if surface disruptions corresponded to differences in internal microstructure. For one specimen, hibernation enamel displayed irregularities in microstructure that were not present in non-hibernation enamel, but this difference was not observed in other specimens. Given these inconclusive results, further research is warranted.
Cho, Amanda, "Comparison of Enamel Microstructure of Ictidomys Tridecemlineatus Formed during Hibernation versus the Active Season" (2021). Honors Theses. 243.
Thirteen-lined ground squirrel; Incisors; Hibernation
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