TEAL Publications

• Guiry E, Kennedy JR, Stricker L, Lavin M, Szpak P. 2025. What it means to be marine: Sulfur isotope variability in the historical Chesapeake Bay ecosystem. Journal of Archaeological Science 179, 106265. doi: 10.1016/j.jas.2025.106265. [DOWNLOAD .pdf]

• Guiry E, Beglane F, Carlin N, Orton D, Teeter M, Szpak P. 2025. Pigs, pannage, and the solstice: Isotopic insights from prehistoric feasting at Newgrange. Proceedings of the Prehistoric Society. doi: 10.1017/ppr.2025.10063. [DOWNLOAD .pdf]

• Guiry E, Kennedy R, Orton D, Armitage P, Bratten J, Dagneau C, Dawdy S, deFrance S, Gaulton B, Givens D, Hall O, Kenyon K, Laberge An, Lavin M, Miller H, Minkoff MF, Niculescu T, Noel S, Pavao-Zuckerman B, Stricker L, Teeter M, Welker M, Wilkoski J, Szpak P, Buckley M. The ratting of North America: A 350-year retrospective on Rattus species compositions and competition. Science Advances 10, eadm6755. doi:10.1126/sciadv.adm6755. [DOWNLOAD .pdf]

• Guiry E, Kennedy JR, Malcom C, Miller M, Hall O, Buckley M, Szpak P, 2024. Archaeological evidence for long-term human impacts on sea turtle foraging behaviour. Royal Society Open Science 11, 240120. doi:10.1098/rsos.240120. [DOWNLOAD .pdf]

• Guiry EJ, Kennedy JR, O’Connell MT, Gray DR, Grant C, Szpak P, 2021. Early evidence for historical overfishing in the Gulf of Mexico. Science Advances 7, eabh2525. doi:10.1126/sciadv.abh2525. [DOWNLOAD .pdf]

• Guiry E, Orchard TJ, Needs-Howarth S, Szpak P, 2021. Isotopic Evidence for Garden Hunting and Resource Depression in the Late Woodland of Northeastern North America. American Antiquity 86, 90-110. doi:10.1017/aaq.2020.86. [DOWNLOAD .pdf]

• Guiry EJ, Szpak P, 2021. Improved quality control criteria for stable carbon and nitrogen isotope measurements of ancient bone collagen. Journal of Archaeological Science 132, 105416. doi:10.1016/j.jas.2021.105416.[DOWNLOAD .pdf]

• Guiry EJ, Buckley M, Orchard TJ, Hawkins AL, Needs-Howarth S, Holm E, Szpak P, 2020. Deforestation caused abrupt shift in Great Lakes nitrogen cycle. Limnology and Oceanography 65, 1921-1935. doi:10.1002/lno.11428. [DOWNLOAD .pdf]

• Guiry E, Royle TCA, Matson RG, Ward H, Weir T, Waber N, Brown TJ, Hunt BPV, Price MHH, Finney BP, Kaeriyama M, Qin Y, Yang DY, Szpak P. 2020 Differentiating salmonid migratory ecotypes through stable isotope analysis of collagen: Archaeological and ecological applications. PLOS One 15:e0232180. doi: 10.1371/journal.pone.0232180. [DOWNLOAD .pdf]

• Guiry E, Royle TCA, Orchard TJ, Needs-Howarth S, Yang DY, Szpak P, 2020. Evidence for freshwater residency among Lake Ontario Atlantic salmon (Salmo salar) spawning in New York. Journal of Great Lakes Research. 46, 1036-1043. doi:10.1016/j.jglr.2020.05.009. [DOWNLOAD .pdf]

• Guiry E, Szpak P, 2020. Quality Control for Modern Bone Collagen Stable Carbon and Nitrogen Isotope Measurements. Methods in Ecology and Evolution 11, 1049-1060. doi:10.1111/2041-210X.13433. [DOWNLOAD .pdf]

• Guiry E, Szpak P, 2020. Seaweed-eating sheep show that δ34S evidence for marine diets can be fully masked by sea spray effects. Rapid Communications in Mass Spectrometry 34, e8868. doi:10.1002/rcm.8868. [DOWNLOAD .pdf]

• Losey RJ, Guiry E, Nomokonova T, Gusev AV, Szpak P, 2020. Storing fish?: a dog’s isotopic biography provides insight into Iron Age food preservation strategies in the Russian Arctic. Archaeological and Anthropological Sciences. doi:10.1007/s12520-020-01166-3. [DOWNLOAD .pdf]

​

TEAL Awards and Honours

🏆 2019 Lowest δ13C Value

🏆 2019 Highest δ13C Value

🏆 2020 Lowest δ13C Value

🏆 2019 Highest δ13C Value

🏆 2020 Highest δ13C Value

🏆 2020 People's Choice Award (Sample of the Year)