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Forschung [16] › Publikationen [6] › ZFMK-Publikationsverzeichnis [7] › What's my age again? On the ambiguity of histology-based skeletochronology

What's my age again? On the ambiguity of histology-based skeletochronology

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AutorInnen: 
Schucht, P. J., Klein, N., Lambertz, M.
Erscheinungsjahr: 
2021
Vollständiger Titel: 
What's my age again? On the ambiguity of histology-based skeletochronology
ZFMK-Autorinnen / ZFMK-Autoren: 
Dr. Markus Lambertz [19]
Org. Einordnung: 
Herpetologie [20]
Publiziert in: 
Proceedings of the Royal Society B: Biological Sciences
Publikationstyp: 
Zeitschriftenaufsatz
DOI Name: 
https://doi.org/10.1098/rspb.2021.1166
Keywords: 
age determination, life history, skeletochonology, bone histology
Bibliographische Angaben: 
Schucht, P. J., Klein, N., Lambertz, M. (2021): What's my age again? On the What's my age again? On the ambiguity of histology-based skeletochronology of histology-based skeletochronology. - Proceedings of the Royal Society, London / B, 288 (1955); https://doi.org/10.1098/rspb.2021.1166
Abstract: 

Histology-based skeletochronology is a widely used approach to determine the age of an individual, and is based on the assumption that temporal cessations or decelerations of bone growth lead to incremental growth marks (GM), reflecting annual cycles. We studied the reliability of histology-based skeletochronology in a variety of extant tetrapods by comparing two different approaches: petrographic ground sections versus stained microtomized sections. Each bone was cut into two corresponding halves at its growth centre in order to apply both approaches to one and the same sample. None of the samples unequivocally revealed the actual age of the specimens, but truly concerning is the fact that the majority of samples even led to conflicting age estimates between the two approaches. Although the microtomized sections tended to yield more GM and thus indicated an older age than the ground sections, the contrary also occurred. Such a pronounced ambiguity in skeletochronological data strongly challenges the value of the respective age determinations for both extant and extinct animals. We conclude that much more research on the fundamental methodological side of skeletochronology—especially regarding the general nature and microscopic recognition of GM—is required.

Ansprechpartnerin / Ansprechpartner

[19]
Dr. Markus Lambertz [19]
PostDoc
Herpetologie [20]
+49 228 9122-212
m.lambertz [at] leibniz-zfmk.de

Quelladresse:https://bonn.leibniz-lib.de/de/forschung/publikationen/whats-my-age-again-on-the-ambiguity-of-histology-based-skeletochronology

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