Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution
The Antarctic continent is almost entirely covered by a vast icecap that reaches 4 km in thickness. Despite this, the continent possesses a remarkable array of lake ecosystems, many of them located in the small ice-free coastal areas or Antarctic oases, so-called because in this continental polar de...
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ftnerc:oai:nora.nerc.ac.uk:18273 2023-05-15T13:45:12+02:00 Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution Pearce, David A. Laybourn-Parry, Joanna Rogers, Alex D. Johnston, Nadine M. Murphy, Eugene J. Clarke, Andrew 2012 http://nora.nerc.ac.uk/id/eprint/18273/ unknown Blackwell Publishing Pearce, David A. orcid:0000-0001-5292-4596 Laybourn-Parry, Joanna. 2012 Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution. In: Rogers, Alex D.; Johnston, Nadine M.; Murphy, Eugene J. orcid:0000-0002-7369-9196 Clarke, Andrew orcid:0000-0002-7582-3074 , (eds.) Antarctic Ecosystems: An Extreme Environment in a Changing World. Blackwell Publishing, 63-89. Publication - Book Section NonPeerReviewed 2012 ftnerc 2023-02-04T19:31:38Z The Antarctic continent is almost entirely covered by a vast icecap that reaches 4 km in thickness. Despite this, the continent possesses a remarkable array of lake ecosystems, many of them located in the small ice-free coastal areas or Antarctic oases, so-called because in this continental polar desert they are areas supporting life, albeit sparse. There are some inland ice-free areas that also have lake ecosystems, notably the largest icefree expanse of the Dry Valleys in Southern Victoria Land (Figure 3.1). The lakes of these ice-free regions range from freshwater to hypersaline (almost seven times seawater). Some abut onto glaciers, for example, Chelnock Lake (Vestfold Hills) and maintain thick icecovers that may be up to 3–5min thickness (Laybourn- Parry, 2000, unpublished data), while neighbouring lakes may lose their ice for a few weeks in summer, for example, Crooked Lake and Lake Druzhby (Laybourn- Parry et al., 1992; Bayliss et al., 1997). The lakes of the Dry Valleys lie far south (77S) and are among the most extreme Antarctic lacustrine ecosystems. They are covered by debris containing thick ice (up to 4.3 m; Howard-Williams et al., 1998; Spigel & Priscu, 1998). Temporary lakes also often form on glacier surfaces. Although they have not been investigated from a biological perspective, it is probable that their communities closely resemble those of cryoconite holes which are a common feature of glacier surfaces in summer. Such communities are ephemeral. Book Part Antarc* Antarctic polar desert Victoria Land Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Victoria Land Vestfold Hills Vestfold Parry ENVELOPE(-62.417,-62.417,-64.283,-64.283) Crooked Lake ENVELOPE(78.382,78.382,-68.617,-68.617) Lake Druzhby ENVELOPE(78.314,78.314,-68.593,-68.593) Bayliss ENVELOPE(62.665,62.665,-73.448,-73.448) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The Antarctic continent is almost entirely covered by a vast icecap that reaches 4 km in thickness. Despite this, the continent possesses a remarkable array of lake ecosystems, many of them located in the small ice-free coastal areas or Antarctic oases, so-called because in this continental polar desert they are areas supporting life, albeit sparse. There are some inland ice-free areas that also have lake ecosystems, notably the largest icefree expanse of the Dry Valleys in Southern Victoria Land (Figure 3.1). The lakes of these ice-free regions range from freshwater to hypersaline (almost seven times seawater). Some abut onto glaciers, for example, Chelnock Lake (Vestfold Hills) and maintain thick icecovers that may be up to 3–5min thickness (Laybourn- Parry, 2000, unpublished data), while neighbouring lakes may lose their ice for a few weeks in summer, for example, Crooked Lake and Lake Druzhby (Laybourn- Parry et al., 1992; Bayliss et al., 1997). The lakes of the Dry Valleys lie far south (77S) and are among the most extreme Antarctic lacustrine ecosystems. They are covered by debris containing thick ice (up to 4.3 m; Howard-Williams et al., 1998; Spigel & Priscu, 1998). Temporary lakes also often form on glacier surfaces. Although they have not been investigated from a biological perspective, it is probable that their communities closely resemble those of cryoconite holes which are a common feature of glacier surfaces in summer. Such communities are ephemeral. |
author2 |
Rogers, Alex D. Johnston, Nadine M. Murphy, Eugene J. Clarke, Andrew |
format |
Book Part |
author |
Pearce, David A. Laybourn-Parry, Joanna |
spellingShingle |
Pearce, David A. Laybourn-Parry, Joanna Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution |
author_facet |
Pearce, David A. Laybourn-Parry, Joanna |
author_sort |
Pearce, David A. |
title |
Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution |
title_short |
Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution |
title_full |
Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution |
title_fullStr |
Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution |
title_full_unstemmed |
Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution |
title_sort |
antarctic lakes as models for the study of microbial biodiversity, biogeography and evolution |
publisher |
Blackwell Publishing |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/18273/ |
long_lat |
ENVELOPE(-62.417,-62.417,-64.283,-64.283) ENVELOPE(78.382,78.382,-68.617,-68.617) ENVELOPE(78.314,78.314,-68.593,-68.593) ENVELOPE(62.665,62.665,-73.448,-73.448) |
geographic |
Antarctic The Antarctic Victoria Land Vestfold Hills Vestfold Parry Crooked Lake Lake Druzhby Bayliss |
geographic_facet |
Antarctic The Antarctic Victoria Land Vestfold Hills Vestfold Parry Crooked Lake Lake Druzhby Bayliss |
genre |
Antarc* Antarctic polar desert Victoria Land |
genre_facet |
Antarc* Antarctic polar desert Victoria Land |
op_relation |
Pearce, David A. orcid:0000-0001-5292-4596 Laybourn-Parry, Joanna. 2012 Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution. In: Rogers, Alex D.; Johnston, Nadine M.; Murphy, Eugene J. orcid:0000-0002-7369-9196 Clarke, Andrew orcid:0000-0002-7582-3074 , (eds.) Antarctic Ecosystems: An Extreme Environment in a Changing World. Blackwell Publishing, 63-89. |
_version_ |
1766216620765609984 |