Show simple item record  

dc.contributor.authorJungblut, Anne D.en_NZ
dc.contributor.authorHawes, Ianen_NZ
dc.date.accessioned2017-07-26T21:22:57Z
dc.date.available2017en_NZ
dc.date.available2017-07-26T21:22:57Z
dc.date.issued2017en_NZ
dc.identifier.citationJungblut, A. D., & Hawes, I. (2017). Using Captain Scott’s discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years? Proceedings of the Royal Society B: Biological Sciences, 284(1857), 20170833–20170833. https://doi.org/10.1098/rspb.2017.0833en
dc.identifier.issn0962-8452en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/11230
dc.description.abstractEvidence of climate-driven environmental change is increasing in Antarctica, and with it comes concern that this will propagate to impacts on biological communities. Recognition and prediction of change needs to incorporate the extent and timescales over which communities vary under extant conditions. However, few observations of Antarctic microbial communities, which dominate inland habitats, allow this. We therefore carried out the first molecular comparison of Cyanobacteria in historic herbarium microbial mats from freshwater ecosystems on Ross Island and the McMurdo Ice Shelf, collected by Captain R.F. Scott's ‘Discovery’ Expedition (1902–1903), with modern samples from those areas. Using 16S rRNA gene surveys, we found that modern and historic cyanobacteria assemblages showed some variation in community structure but were dominated by the same genotypes. Modern communities had a higher richness, including genotypes not found in historic samples, but they had the highest similarity to other cyanobacteria sequences from Antarctica. The results imply slow cyanobacterial 16S rRNA gene genotype turnover and considerable community stability within Antarctic microbial mats. We suggest that this relates to Antarctic freshwater 'organisms requiring a capacity to withstand diverse stresses, and that this could also provide a degree of resistance and resilience to future climatic-driven environmental change in Antarctica.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherRoyal Societyen_NZ
dc.relation.urihttp://rspb.royalsocietypublishing.org/content/284/1857/20170833en_NZ
dc.rightsThis is an author’s accepted version of an article published in the journal: Proceedings of the Royal Society B: Biological Sciences. © 2017 The Royal Society.
dc.subjectAntarcticaen_NZ
dc.subjectcyanobacteriaen_NZ
dc.subjectclimatic changeen_NZ
dc.subject16S rRNA geneen_NZ
dc.subjectfreshwateren_NZ
dc.subjecthistoric collectionsen_NZ
dc.titleUsing Captain Scott's discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?en_NZ
dc.typeJournal Article
dc.identifier.doi10.1098/rspb.2017.0833en_NZ
dc.relation.isPartOfProceedings of the Royal Society B: Biological Sciencesen_NZ
pubs.begin-page20170833
pubs.elements-id199852
pubs.end-page20170833
pubs.issue1857en_NZ
pubs.volume284en_NZ
dc.identifier.eissn1471-2954en_NZ


Files in this item

This item appears in the following Collection(s)

Show simple item record