Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota Karel Janko1, Eva Kasparova*1, Anton Van de Putte2, Craig Marshall3 1Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Republic, 2K.U....
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ftunivleuven:oai:lirias.kuleuven.be:123456789/270120 2023-05-15T14:02:28+02:00 Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota Janko, Karel Kasparova, Eva Van de Putte, Anton Marshall, Craig 2010-06 54090 bytes application/pdf https://lirias.kuleuven.be/handle/123456789/270120 https://lirias.kuleuven.be/bitstream/123456789/270120/1//Oslo2010_2533.pdf en eng IPY Oslo Science Conference 2010 location:Oslo, Norway date:8-12 june 2010 https://lirias.kuleuven.be/handle/123456789/270120 https://lirias.kuleuven.be/bitstream/123456789/270120/1//Oslo2010_2533.pdf 114801;public Fishes of Antarctic shelf benthic ecosystem population genetic comparative phylogeography Conference paper/abstract IMa conference_paper 114801;Conference paper/abstract 2010 ftunivleuven 2014-03-04T16:06:25Z Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota Karel Janko1, Eva Kasparova*1, Anton Van de Putte2, Craig Marshall3 1Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Republic, 2K.U.Leuven, Laboratory for Animal Diversity and Systematics, Belgium, 3Department of Biochemistry, University of Otago, New Zealand Antarctica and the southern Ocean are important determinants of global climate and ocean currents. Yet, polar ecosystems, and Antarctic in particular, are assumed to be very vulnerable to climate changes. While lot of effort is put into modelling the impact of future climate changes on polar biota, we offer an alternative retrospective approach based on simultaneous population genetic analysis of several species with different ecological requirements. We perform comparative analysis of demographic histories of a dozen fish species belonging to the suborder Notothenioidei. These include high Antarctic as well as sub Antarctic species, specialised on both benthic and pelagic life styles. Based on previous analysis of few available data on fish species, we predict that affinity to benthic life style and high Antarctic occurrence promotes the vulnerability to ice sheet advances during glacial maxims. Such species should be characterised by rather recent signals of population expansion from unglaciated refuges as compared to pelagic species. In agreement with the hypothesis, we generally observed more recent signals of population expansions in benthic species but some notable exceptions clearly suggest the need of more fine-scale analysis taking into account other life history traits. Such multiparameter analysis, however, critically depends on large amount of studied taxa. Nevertheless, our data ameliorate the ability to determine the general impact of past glacial cycles on local biota as well as to identify the lifehistory traits affecting the organismal response to such events. status: published Conference Object Antarc* Antarctic Antarctica Ice Sheet Southern Ocean KU Leuven: Lirias Antarctic New Zealand Southern Ocean |
institution |
Open Polar |
collection |
KU Leuven: Lirias |
op_collection_id |
ftunivleuven |
language |
English |
topic |
Fishes of Antarctic shelf benthic ecosystem population genetic comparative phylogeography |
spellingShingle |
Fishes of Antarctic shelf benthic ecosystem population genetic comparative phylogeography Janko, Karel Kasparova, Eva Van de Putte, Anton Marshall, Craig Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota |
topic_facet |
Fishes of Antarctic shelf benthic ecosystem population genetic comparative phylogeography |
description |
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota Karel Janko1, Eva Kasparova*1, Anton Van de Putte2, Craig Marshall3 1Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Republic, 2K.U.Leuven, Laboratory for Animal Diversity and Systematics, Belgium, 3Department of Biochemistry, University of Otago, New Zealand Antarctica and the southern Ocean are important determinants of global climate and ocean currents. Yet, polar ecosystems, and Antarctic in particular, are assumed to be very vulnerable to climate changes. While lot of effort is put into modelling the impact of future climate changes on polar biota, we offer an alternative retrospective approach based on simultaneous population genetic analysis of several species with different ecological requirements. We perform comparative analysis of demographic histories of a dozen fish species belonging to the suborder Notothenioidei. These include high Antarctic as well as sub Antarctic species, specialised on both benthic and pelagic life styles. Based on previous analysis of few available data on fish species, we predict that affinity to benthic life style and high Antarctic occurrence promotes the vulnerability to ice sheet advances during glacial maxims. Such species should be characterised by rather recent signals of population expansion from unglaciated refuges as compared to pelagic species. In agreement with the hypothesis, we generally observed more recent signals of population expansions in benthic species but some notable exceptions clearly suggest the need of more fine-scale analysis taking into account other life history traits. Such multiparameter analysis, however, critically depends on large amount of studied taxa. Nevertheless, our data ameliorate the ability to determine the general impact of past glacial cycles on local biota as well as to identify the lifehistory traits affecting the organismal response to such events. status: published |
format |
Conference Object |
author |
Janko, Karel Kasparova, Eva Van de Putte, Anton Marshall, Craig |
author_facet |
Janko, Karel Kasparova, Eva Van de Putte, Anton Marshall, Craig |
author_sort |
Janko, Karel |
title |
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota |
title_short |
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota |
title_full |
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota |
title_fullStr |
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota |
title_full_unstemmed |
Could anyone survive Antarctic glaciations?: Evolution in the extreme environment and the effect of climatic changes on Antarctic biota |
title_sort |
could anyone survive antarctic glaciations?: evolution in the extreme environment and the effect of climatic changes on antarctic biota |
publishDate |
2010 |
url |
https://lirias.kuleuven.be/handle/123456789/270120 https://lirias.kuleuven.be/bitstream/123456789/270120/1//Oslo2010_2533.pdf |
geographic |
Antarctic New Zealand Southern Ocean |
geographic_facet |
Antarctic New Zealand Southern Ocean |
genre |
Antarc* Antarctic Antarctica Ice Sheet Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Southern Ocean |
op_relation |
IPY Oslo Science Conference 2010 location:Oslo, Norway date:8-12 june 2010 https://lirias.kuleuven.be/handle/123456789/270120 https://lirias.kuleuven.be/bitstream/123456789/270120/1//Oslo2010_2533.pdf |
op_rights |
114801;public |
_version_ |
1766272747776770048 |