High-resolution stable isotope profiles from shells of the land snail Placostylus reveal contrasting patterns between snails originating from New Zealand and New Caledonia

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dc.citation.issue7
dc.citation.volume38
dc.contributor.authorQuenu M
dc.contributor.authorJudd EJ
dc.contributor.authorMorgan-Richards M
dc.contributor.authorTrewick SA
dc.contributor.authorHolt K
dc.contributor.authorTyler J
dc.contributor.authorLorrey AM
dc.date.accessioned2024-11-12T20:57:31Z
dc.date.available2024-11-12T20:57:31Z
dc.date.issued2023-05-31
dc.description.abstractThe stable oxygen (δ18Oshell) and carbon (δ13Cshell) isotope ratios retrieved from the carbonate shell of terrestrial gastropods can be used as an environmental proxy and are thought to reflect dietary composition and ambient climatic conditions (e.g. precipitation amount, humidity, temperature). Here, we generate high-resolution isotopic profiles of nine modern land snails of the genus Placostylus, collected from two locations in New Caledonia and one location in New Zealand. We found that snails from New Zealand had, on average, higher δ18Oshell values than their counterparts in New Caledonia, which surprisingly runs counter to the expected relationship based on the isotopic composition of rainwater between these two regions. Specimens from New Caledonia exhibit ephemeral decreases in their δ18Oshell values, which could be linked to extreme precipitation events in this region, while snails from New Zealand have less variation in their δ18Oshell values. Snails from New Zealand had, on average, slightly higher δ13Cshell than their counterparts in New Caledonia, but a large difference in carbon isotopes was sometimes observed between snails collected at the same location. Most snails exhibit a temporal trend in their δ13Cshell values, indicating potential shifts in diet through to maturity.
dc.description.confidentialfalse
dc.edition.editionOct 2023
dc.format.pagination1171-1183
dc.identifier.citationQuenu M, Judd EJ, Morgan-richards M, Trewick SA, Holt K, Tyler J, Lorrey AM. (2023). High-resolution stable isotope profiles from shells of the land snail Placostylus reveal contrasting patterns between snails originating from New Zealand and New Caledonia. Journal of Quaternary Science. 38. 7. (pp. 1171-1183).
dc.identifier.doi10.1002/jqs.3536
dc.identifier.eissn1099-1417
dc.identifier.elements-typejournal-article
dc.identifier.issn0267-8179
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/71983
dc.languageEnglish
dc.publisherJohn Wiley and Sons Ltd
dc.publisher.urihttps://onlinelibrary.wiley.com/doi/10.1002/jqs.3536
dc.relation.isPartOfJournal of Quaternary Science
dc.rights(c) 2023 The Author/s
dc.rightsCC BY-NC-ND 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.en
dc.subjectCarbonate shell
dc.subjectPlacostylus
dc.subjectsouthwest Pacific
dc.subjectstable isotopes
dc.subjectterrestrial gastropods
dc.titleHigh-resolution stable isotope profiles from shells of the land snail Placostylus reveal contrasting patterns between snails originating from New Zealand and New Caledonia
dc.typeJournal article
pubs.elements-id462179
pubs.organisational-groupCollege of Health
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