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Title |
Telomere length reflects individual quality in free-living adult king penguins |
Type |
Journal |
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Year |
2015 |
Publication |
Polar Biology |
Abbreviated Journal |
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Volume |
38 |
Issue |
12 |
Pages |
2059-2067 |
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Programme |
137 |
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Edition |
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ISSN |
0722-4060, 1432-2056 |
ISBN  |
0722-4060, 1432-2056 |
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Approved |
yes |
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Call Number |
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Serial |
6697 |
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Title |
Out of Antarctica: quaternary colonization of sub-Antarctic Marion Island by the limpet genus Nacella (Patellogastropoda: Nacellidae) |
Type |
Journal |
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Year |
2016 |
Publication |
Polar Biology |
Abbreviated Journal |
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Volume |
39 |
Issue |
1 |
Pages |
77-89 |
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Keywords |
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Abstract |
The distribution of the Southern Ocean nearshore marine benthic fauna is the consequence of major geologic, oceanographic, and climatic changes during the last 50 Ma. As a result, a main biogeographic principle in the Southern Ocean is the clear distinction of the Antarctic biota. The Antarctic Polar Front (APF) represents an important barrier between Antarctica and other sub-Antarctic provinces. However, the high degree of genetic affinity between populations of the Antarctic limpet Nacella concinna and its sub-Antarctic relative Nacella delesserti from Marion Island stands against this tenet. Here, we performed new phylogenetic reconstructions in Nacella with special emphasis on the relationship between N. concinna and N. delesserti. Similarly, we performed population-based analyses in N. concinna and N. delesserti to further understand the genetic legacy of the Quaternary glacial cycles. Phylogenetic reconstructions recognized N. concinna and N. delesserti as two closely but distinct monophyletic entities and therefore as valid evolutionary units. The cladogenetic process separating them occurred ~0.35 Ma and is consistent with the origin of Marion Island (~0.45 Ma). Exceptional long-distance dispersal between provinces located inside and outside the APF, rather than revealing the permeability of the Antarctic Polar Front, seems to be related to latitudinal shift in the position of the APF during coldest periods of the Quaternary. Diversity indices, neutrality tests, haplotype networks, and demographic inference analysis showed that the demography of both species exhibits a clear signal of postglacial expansion. |
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1044 |
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ISSN |
0722-4060, 1432-2056 |
ISBN |
0722-4060, 1432-2056 |
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Approved |
yes |
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Call Number |
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Serial |
6702 |
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Author |
Carolina Giraldo, Marc Boutoute, Patrick Mayzaud, Eric Tavernier, An Vo Quang, Philippe Koubbi |
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Title |
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Type |
Journal |
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Year |
2017 |
Publication |
Polar Biology |
Abbreviated Journal |
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Volume |
40 |
Issue |
2 |
Pages |
313-320 |
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Keywords |
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Abstract |
Lipids play a crucial role in polar regions and are of particular importance in early life stages of Antarctic fish. This work presents the significance of lipids and fatty acids (FAs) in the early life stages of the icefish Chionodraco hamatus. Analysis of lipid classes (polar lipids, PL; cholesterol, Chol; and triacylglycerol, TAG) suggested different energy allocation strategies in preflexion (<25 mm) and postflexion larvae (>25 mm). Structural PL dominated lipid dynamics for preflexion larvae, indicating that small individuals allocate the majority of energy toward somatic growth. Conversely, postflexion larvae appear able to switch between growth (contribution of PL) and energy storage (contribution of TAG) strategies. The condition index ratio TAG/Chol varied from 0.2 to <2 with no differences between the two larval stages. Further, FA composition of the TAG and PL fractions suggests that both developmental stages share the same carnivorous diet and that C. hamatus relies on a few key prey items. |
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Programme |
1142 |
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ISSN |
0722-4060, 1432-2056 |
ISBN |
0722-4060, 1432-2056 |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6729 |
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Author |
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Title |
Patterns of genetic diversity and structure in antarctic and subantarctic Nacella (Nacellidae) species |
Type |
Journal |
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Year |
2016 |
Publication |
Anales del Instituto de la Patagonia |
Abbreviated Journal |
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Volume |
44 |
Issue |
3 |
Pages |
49-64 |
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Abstract |
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Programme |
1044 |
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Edition |
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ISSN |
0718-686X |
ISBN |
0718-686X |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6691 |
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Author |
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Title |
Do commercial fisheries display optimal foraging? The case of longline fishers in competition with odontocetes |
Type |
Journal |
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Year |
2017 |
Publication |
Canadian Journal of Fisheries and Aquatic Sciences |
Abbreviated Journal |
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Volume |
75 |
Issue |
6 |
Pages |
964-976 |
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Keywords |
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Abstract |
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Programme |
109 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0706-652X |
ISBN |
0706-652X |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7471 |
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Author |
Blangy, Sylvie et Tester Frank, sous la direction de / guest editors. |
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Title |
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Type |
Book Whole |
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Year |
2013 |
Publication |
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Abbreviated Journal |
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Volume |
37 |
Issue |
1 |
Pages |
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Abstract |
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Programme |
1193 |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
0701-1008 |
Medium |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
4431 |
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Author |
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Title |
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Type |
Book Chapter |
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Year |
2017 |
Publication |
Geografiska Annaler: Series A, Physical Geography |
Abbreviated Journal |
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Volume |
99 |
Issue |
2 |
Pages |
115-138 |
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Keywords |
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Abstract |
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Programme |
1108,1111 |
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Thesis |
Bachelor's thesis |
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Series Editor |
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Series Issue |
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Edition |
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ISSN |
0435-3676 |
ISBN |
0435-3676 |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6964 |
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Author |
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Title |
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Type |
Journal |
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Year |
2017 |
Publication |
Geografiska Annaler: Series A, Physical Geography |
Abbreviated Journal |
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Volume |
99 |
Issue |
2 |
Pages |
115-138 |
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Keywords |
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Abstract |
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Programme |
1108 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0435-3676 |
ISBN |
0435-3676 |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
7246 |
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Author |
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Title |
New national and regional bryophyte records, 50 |
Type |
Journal |
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Year |
2017 |
Publication |
Journal of bryology |
Abbreviated Journal |
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Volume |
39 |
Issue |
1 |
Pages |
99-114 |
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Keywords |
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Abstract |
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Programme |
136 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0373-6687 |
ISBN |
0373-6687 |
Medium |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6610 |
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Author |
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Title |
New national and regional bryophyte records, 51 |
Type |
Journal |
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Year |
2017 |
Publication |
Journal of bryology |
Abbreviated Journal |
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Volume |
39 |
Issue |
2 |
Pages |
177-190 |
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Keywords |
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Abstract |
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Programme |
136 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0373-6687 |
ISBN |
0373-6687 |
Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6611 |
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| Permanent link to this record |
