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100 years on: a re-evaluation of the first discovery of microfauna from Ross Island, Antarctica

100 years on: a re-evaluation of the first discovery of microfauna from Ross Island, Antarctica AbstractOver a century ago microfaunal diversity was first recorded by James Murray in lakes at Cape Royds, Ross Island, Antarctica. The report stands as the seminal study for today’s biodiversity investigations, and as a baseline to evaluate changes in faunal communities and introductions. In the present study, Cape Royds lakes were revisited and the mitochondrial c oxidase subunit I (COI) gene and morphology were used to compare diversity of Rotifera, Tardigrada and Nematoda with the records Murray published in the early 1900s. Cyanobacterial mats and the water column were sampled for microfauna from the five largest lakes using methods described by Murray. Across all five lakes similar patterns were observed for species distribution of all three phyla reported by Murray over 100 years ago. Some changes in species assemblages were identified within and between lakes, but there were no new introductions of named species for the Cape Royds region. Some of the species included by Murray in his monograph have been recently redescribed as Antarctic endemics, but others still retain their original name from the Northern Hemisphere holotypes and are also in need of revision to adequately determine the true endemism for these faunal groups. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Antarctic Science Cambridge University Press

100 years on: a re-evaluation of the first discovery of microfauna from Ross Island, Antarctica

Antarctic Science , Volume 30 (4): 11 – Mar 16, 2018
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Publisher
Cambridge University Press
Copyright
© Antarctic Science Ltd 2018 
ISSN
0954-1020
eISSN
1365-2079
DOI
10.1017/S095410201800007X
Publisher site
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Abstract

AbstractOver a century ago microfaunal diversity was first recorded by James Murray in lakes at Cape Royds, Ross Island, Antarctica. The report stands as the seminal study for today’s biodiversity investigations, and as a baseline to evaluate changes in faunal communities and introductions. In the present study, Cape Royds lakes were revisited and the mitochondrial c oxidase subunit I (COI) gene and morphology were used to compare diversity of Rotifera, Tardigrada and Nematoda with the records Murray published in the early 1900s. Cyanobacterial mats and the water column were sampled for microfauna from the five largest lakes using methods described by Murray. Across all five lakes similar patterns were observed for species distribution of all three phyla reported by Murray over 100 years ago. Some changes in species assemblages were identified within and between lakes, but there were no new introductions of named species for the Cape Royds region. Some of the species included by Murray in his monograph have been recently redescribed as Antarctic endemics, but others still retain their original name from the Northern Hemisphere holotypes and are also in need of revision to adequately determine the true endemism for these faunal groups.

Journal

Antarctic Science – Cambridge University Press

Published: Mar 16, 2018

Keywords: Cape Royds; COI; diversity; endemism; James Murray; lakes; nematodes; rotifers; tardigrades

References

  • Diversity and distribution of Victoria Land biota
  • Ecological biogeography of the terrestrial nematodes of Victoria Land, Antarctica
  • Life history traits and reproductive mode of the tardigrade Acutuncus antarcticus under laboratory conditions: strategies to colonize the Antarctic environment
  • Antarctic Tardigrada: a first step in understanding molecular operational taxonomic units (MOTUs) and biogeography of cryptic meiofauna
  • Antarctic rotifers
  • The reproductive strategies of two Antarctic rotifers
  • Redescription of Hypsibius antarcticus (Richters, 1904), with some notes on Hypsibius arcticus (Murray, 1907) (Tardigrada)
  • DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates
  • Molecular support for Pleistocene persistence of the continental Antarctic moss Bryum argenteum
  • MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets
  • Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and Continental Antarctica
  • Arctic Tardigrada
  • Biology. British Antarctic Expedition 1907–9, under the command of Sir E.H. Shackleton
  • Ross Island recreational walking tracks: relationships between soil physiochemical properties and track usage
  • The biodiversity and biogeochemistry of cryoconite holes from McMurdo Dry Valley glaciers, Antarctica
  • MODELTEST: testing the model of DNA substitution
  • Nematodes from the Victoria Land coast, Antarctica and comparisons with cultured Panagrolaimus davidi
  • Diversity and distribution of tardigrades in soils of Edmonson Point (northern Victoria Land, Continental Antarctica)
  • Conservation biogeography of the Antarctic
  • Effect of lifespan and age on reproductive performance of the tardigrade Acutuncus antarcticus: minimal reproductive senescence
  • Morphological and molecular diversity at a regional scale: a step closer to understanding Antarctic nematode biogeography
  • A review of current Antarctic limno-terrestrial microfauna
  • Surprisingly high levels of biodiversity and endemism amongst Antarctic rotifers uncovered with mitochondrial DNA