Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?"
Evidence 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 time scales over which communities vary under extant conditio...
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ftdatacite:10.6084/m9.figshare.c.3799447.v1 2023-05-15T13:43:34+02:00 Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" Jungblut, Anne D. Hawes, Ian 2017 https://dx.doi.org/10.6084/m9.figshare.c.3799447.v1 https://figshare.com/collections/Supplementary_material_from_Using_Captain_Scott_s_Discovery_specimens_to_unlock_the_past_has_Antarctic_cyanobacterial_diversity_changed_over_the_last_100_years_/3799447/1 unknown Figshare https://dx.doi.org/10.1098/rspb.2017.0833 https://dx.doi.org/10.6084/m9.figshare.c.3799447 CC BY https://creativecommons.org/licenses/by/4.0 CC-BY Microbiology FOS Biological sciences Molecular Biology Ecology Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3799447.v1 https://doi.org/10.1098/rspb.2017.0833 https://doi.org/10.6084/m9.figshare.c.3799447 2021-11-05T12:55:41Z Evidence 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 time scales 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 (1902–03), 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 highest similarity to other cyanobacteria sequences from Antarctica. The results imply slow cyanobacterial 16S rRNA gene genotype turnover and a considerable community stability within Antarctic microbial mats. We suggest that this relates to Antarctic freshwater habitats 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelf McMurdo Ice Shelf Ross Island DataCite Metadata Store (German National Library of Science and Technology) Antarctic Ross Island McMurdo Ice Shelf ENVELOPE(166.500,166.500,-78.000,-78.000) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Microbiology FOS Biological sciences Molecular Biology Ecology |
spellingShingle |
Microbiology FOS Biological sciences Molecular Biology Ecology Jungblut, Anne D. Hawes, Ian Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" |
topic_facet |
Microbiology FOS Biological sciences Molecular Biology Ecology |
description |
Evidence 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 time scales 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 (1902–03), 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 highest similarity to other cyanobacteria sequences from Antarctica. The results imply slow cyanobacterial 16S rRNA gene genotype turnover and a considerable community stability within Antarctic microbial mats. We suggest that this relates to Antarctic freshwater habitats 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. |
format |
Article in Journal/Newspaper |
author |
Jungblut, Anne D. Hawes, Ian |
author_facet |
Jungblut, Anne D. Hawes, Ian |
author_sort |
Jungblut, Anne D. |
title |
Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" |
title_short |
Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" |
title_full |
Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" |
title_fullStr |
Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" |
title_full_unstemmed |
Supplementary material from "Using Captain Scott's Discovery specimens to unlock the past: has Antarctic cyanobacterial diversity changed over the last 100 years?" |
title_sort |
supplementary material from "using captain scott's discovery specimens to unlock the past: has antarctic cyanobacterial diversity changed over the last 100 years?" |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3799447.v1 https://figshare.com/collections/Supplementary_material_from_Using_Captain_Scott_s_Discovery_specimens_to_unlock_the_past_has_Antarctic_cyanobacterial_diversity_changed_over_the_last_100_years_/3799447/1 |
long_lat |
ENVELOPE(166.500,166.500,-78.000,-78.000) |
geographic |
Antarctic Ross Island McMurdo Ice Shelf |
geographic_facet |
Antarctic Ross Island McMurdo Ice Shelf |
genre |
Antarc* Antarctic Antarctica Ice Shelf McMurdo Ice Shelf Ross Island |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf McMurdo Ice Shelf Ross Island |
op_relation |
https://dx.doi.org/10.1098/rspb.2017.0833 https://dx.doi.org/10.6084/m9.figshare.c.3799447 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3799447.v1 https://doi.org/10.1098/rspb.2017.0833 https://doi.org/10.6084/m9.figshare.c.3799447 |
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