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Redescription of the Antarctic springtail Desoria klovstadi using morphological and molecular evidence

Stevens, Mark I. ; Fjellberg, Arne LU ; Greenslade, Penelope ; Hogg, Ian D. and Sunnucks, Paul (2006) In Polar Biology 29(10). p.820-830
Abstract
Isotoma klovstadi Carpenter, 1902 was one of the first Collembola described from the Antarctic continent. It was first collected in November 1899 during the British Antarctic Expedition on the north coast of Victoria Land in the Ross Sea region. It is now known to occur in an extensive area of northern Victoria Land, including the offshore Possession, Coulman, and Foyn Islands. More recently, L klovstadi was moved to the genus Gnathisotoma Cassagnau, 1957 and has been included in this genus in an unpublished checklist (online) of all described Collembola. Here, we redescribe the species and use morphological and molecular (COI and 18S genes) evidence to investigate its affinities within the Isotominae. We show that it does not belong to... (More)
Isotoma klovstadi Carpenter, 1902 was one of the first Collembola described from the Antarctic continent. It was first collected in November 1899 during the British Antarctic Expedition on the north coast of Victoria Land in the Ross Sea region. It is now known to occur in an extensive area of northern Victoria Land, including the offshore Possession, Coulman, and Foyn Islands. More recently, L klovstadi was moved to the genus Gnathisotoma Cassagnau, 1957 and has been included in this genus in an unpublished checklist (online) of all described Collembola. Here, we redescribe the species and use morphological and molecular (COI and 18S genes) evidence to investigate its affinities within the Isotominae. We show that it does not belong to Gnathisotoma, or Isotoma s. str. (the viridis group) as currently conceived, but is likely to be part of the species complex of Isotoma s. lat. We discuss reasons for placing it in the genus Desoria Nicolet, 1841. Our results reinforce the already high level of endemicity in the Antarctic fauna and emphasise the value of both morphological and molecular studies in examining relict Gondwanan taxa and their evolutionary relationships with those of other Southern Hemisphere continents. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Polar Biology
volume
29
issue
10
pages
820 - 830
publisher
Springer
external identifiers
  • wos:000241382900002
  • scopus:33646676636
ISSN
1432-2056
DOI
10.1007/s00300-006-0120-y
language
English
LU publication?
yes
id
56ce3e13-af5f-4bad-981f-57b1bde81367 (old id 384310)
date added to LUP
2016-04-01 12:09:42
date last changed
2021-08-04 03:00:37
@article{56ce3e13-af5f-4bad-981f-57b1bde81367,
  abstract     = {Isotoma klovstadi Carpenter, 1902 was one of the first Collembola described from the Antarctic continent. It was first collected in November 1899 during the British Antarctic Expedition on the north coast of Victoria Land in the Ross Sea region. It is now known to occur in an extensive area of northern Victoria Land, including the offshore Possession, Coulman, and Foyn Islands. More recently, L klovstadi was moved to the genus Gnathisotoma Cassagnau, 1957 and has been included in this genus in an unpublished checklist (online) of all described Collembola. Here, we redescribe the species and use morphological and molecular (COI and 18S genes) evidence to investigate its affinities within the Isotominae. We show that it does not belong to Gnathisotoma, or Isotoma s. str. (the viridis group) as currently conceived, but is likely to be part of the species complex of Isotoma s. lat. We discuss reasons for placing it in the genus Desoria Nicolet, 1841. Our results reinforce the already high level of endemicity in the Antarctic fauna and emphasise the value of both morphological and molecular studies in examining relict Gondwanan taxa and their evolutionary relationships with those of other Southern Hemisphere continents.},
  author       = {Stevens, Mark I. and Fjellberg, Arne and Greenslade, Penelope and Hogg, Ian D. and Sunnucks, Paul},
  issn         = {1432-2056},
  language     = {eng},
  number       = {10},
  pages        = {820--830},
  publisher    = {Springer},
  series       = {Polar Biology},
  title        = {Redescription of the Antarctic springtail Desoria klovstadi using morphological and molecular evidence},
  url          = {http://dx.doi.org/10.1007/s00300-006-0120-y},
  doi          = {10.1007/s00300-006-0120-y},
  volume       = {29},
  year         = {2006},
}