A multi-proxy record of environmental change at a glacial Nothofagus refugium, Wyelangta, Victoria

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dc.contributor.authorMatley, KAen_AU
dc.contributor.authorDrinnan, ANen_AU
dc.contributor.authorSniderman, JMKen_AU
dc.contributor.authorHua, Qen_AU
dc.contributor.authorPorch, Nen_AU
dc.date.accessioned2023-03-30T22:28:00Zen_AU
dc.date.available2023-03-30T22:28:00Zen_AU
dc.date.issued2022-12-06en_AU
dc.date.statistics2023-03-30en_AU
dc.description.abstractDespite its widespread use in palaeoecology, pollen-based reconstructions are limited by coarse taxonomic resolution. Pollen of narrow-range species that might be used as ecological indicators, for example, can be difficult or impossible to distinguish from the pollen of geographically widespread, and therefore less informative, taxa. Plant macrofossils, by contrast, are routinely identified to species level, and a majority of the species present in Southeast Australia during the late Quaternary still exist today. These improvements to the taxonomic precision of palaeobotanical records allow for the use of bioclimatic niche models to quantitatively reconstruct palaeoclimate, based on fossil species’ modern day climatic niches. Combining these two proxies, we are able to produce a more nuanced interpretation of late-Quaternary vegetation and climate. We sampled for pollen and plant macrofossils at a known late Quaternary palynological site in the Otways, Victoria (McKenzie & Kershaw, 2000). Here, we present a detailed pollen record and use plant macrofossil remains to confirm species identifications and conduct bioclimatic niche modelling. Our study reveals that, although the site has remained a rare mainland refugium for Nothofagus cunninghamii throughout the entire period of the record, the regional vegetation has undergone significant environmental change. By employing a multi-proxy approach that encompasses both pollen and macrofossil analysis, this study provides precise new estimates of the composition of Southeast Australian biotic communities and climates. These results contribute to the globally significant debate around the influence of the late Quaternary climate over the generation and maintenance of terrestrial biodiversity, and to the increasingly urgent discussion of the degree of sensitivity of Australian plant taxa to changing climate in general.en_AU
dc.identifier.citationMatley, K. A., Drinnan, A. N., Sniderman, J. M. K., Hua, Q & Porch, N. (2022). A multi-proxy record of environmental change at a glacial Nothofagus refugium, Wyelangta, Victoria. Paper presented to the AQUA 2022 Conference, 6-8th December, Adelaide, (pp. 69). Retrieved from: https://aqua.org.au/conference/aqua-2022/aqua-2022-conference-program-and-abstracts/en_AU
dc.identifier.conferenceenddate8 December 2022en_AU
dc.identifier.conferencenameAQUA 2022 Conferenceen_AU
dc.identifier.conferenceplaceAdelaideen_AU
dc.identifier.conferencestartdate6 December 2022en_AU
dc.identifier.otherABN 78458664047en_AU
dc.identifier.pagination69en_AU
dc.identifier.urihttps://aqua.org.au/conference/aqua-2022/aqua-2022-conference-program-and-abstracts/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14765en_AU
dc.language.isoenen_AU
dc.publisherAustralasian Quaternary Associationen_AU
dc.subjectVictoriaen_AU
dc.subjectPollenen_AU
dc.subjectEcologyen_AU
dc.subjectIndicatorsen_AU
dc.subjectGeographical variationsen_AU
dc.subjectFossilsen_AU
dc.subjectSpecies diversityen_AU
dc.subjectPlantsen_AU
dc.subjectClimatesen_AU
dc.subjectEnvironmenten_AU
dc.titleA multi-proxy record of environmental change at a glacial Nothofagus refugium, Wyelangta, Victoriaen_AU
dc.typeConference Abstracten_AU
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