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Viblanc V.A., Schull Q.; Stier A., Durand L., Lefol E., Robin J.-P., Zahn S., Bize P., Criscuolo F |
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Title |
Foster rather than biological parental telomere length predicts offspring survival and telomere length in king penguins |
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Peer-reviewed symposium |
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Year |
2020 |
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Because Telomere Length (Tl) And Dynamics Relate To Growth, Reproductive Investment And Survival, Telomeres Might Be Markers Of Individual Quality. In The King Penguin, We Tested The Hypothesis That Parental Tl Can Be A Marker Of Parental Quality. We Swapped The Egg Of Breeding Pairs To Disentangle The Contribution Of Pre And/or Post -Laying Parental Quality On Chick’s Growth, Tl And Survival. Parental Quality Was Estimated Through The Effects Of Biological And Foster Parent Tl On Offspring Traits, 10 Or 105 Days After Hatching. We Show That Chick Survival Up To 10 Days Was Negatively Related To Biological Fathers’ Tl Whereas Survival Up To 105 Days Was Positively Related To Foster Fathers’ Tl. Chick Growth Was Not Related To Parents’ Tl. Chick Tl Was Positively Related To Foster Mothers’ Tl At Both 10 And 105 Days. Overall, We Show That, In A Species With Bi-parental Care, Parents’ Tl Is Foremost A Proxy Of Parental Care Quality, Supporting The Telomere &Ndash; Parental Quality Hypothesis. |
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119 |
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8048 |
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Angot, H., Dommergue, A., Magand, O., Helmig, D., Pirrone, N., and Sprovieri, F. |
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Title |
Year-round record of gaseous mercury in air and snow: new insights into mercury reactivity in Central Antarctica (Dome C) |
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Conference - International - Communication |
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2015 |
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1028 |
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6203 |
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Mccoy, Kd |
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Title |
Tick and tick-borne disease circulation in a changing marine ecosystem |
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Book |
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2021 |
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In “Climate, Ticks and Disease” ed. Pat Nuttall, University of Oxford, UK, CABI Climate Change Series |
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This Book Brings Together Expert Opinions From Scientists To Consider The Evidence For Climate Change And Its Impacts On Ticks And Tick-borne Infections, And Provide Predictions For The Future. It Considers What Is Meant By 'Climate Change', How Good Are Climate Models Relevant To Ecosystems, And Predictions For Changes In Climate At Global, Regional, And Local Scales Relevant For Ticks And Tick-borne Infections. It Examines Changes To Tick Distribution And The Evidence That Climate Change Is Responsible. The Effect Of Climate On The Physiology And Metabolism Of Ticks, Including Potentially Critical Impacts On The Tick Microbiome Is Stressed. Given That The Notoriety Of Ticks Derives From Pathogens They Transmit, Do Changes In Climate Affect Vector Capacity? Ticks Transmit A Remarkable Range Of Micro- And Macro-parasites Many Of Which Are Pathogens Of Humans And Domesticated Animals. The Intimacy Between Tick-borne Agent And Tick Vector Means That Any Impacts Of Climate On A Tick Vector Will Impact Tick-borne Pathogens. Most Obviously, Such Impacts Will Be Apparent As Changes In Disease Incidence And Prevalence. The Evidence That Climate Change Is Affecting Diseases Caused By Tick-borne Pathogens Is Considered, Along With The Potential To Make Robust Predictions Of Future Events. |
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333 |
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9781789249637 |
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8036 |
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Willener A.S.T., Handrich Y., Halsey L.G. & S. Strike |
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Title |
Fat king Penguins are less Steady on their feet. |
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Journal Article |
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Year |
2016 |
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Plos one |
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11 |
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2 |
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e0147784 |
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Returning to the shore after a feeding sojourn at sea, king penguins often undertake a relatively long terrestrial journey to the breeding colony carrying a heavy, mostly frontal, accumulation of fat along with food in the stomach for chick-provisioning. There they must survive a fasting period of up to a month in duration, during which their complete reliance on endogenous energy stores results in a dramatic loss in body mass. Our aim was to determine if the king penguin’s walking gait changes with variations in body mass. We investigated this by walking king penguins on a treadmill while instrumented with an acceleration data logger. The stride frequency, dynamic body acceleration (DBA) and posture of fat (pre-fasting; 13.2 kg) and slim (post fasting; 11 kg) king penguins were assessed while they walked at the same speed (1.4km/h) on a treadmill. Paired statistical tests indicated no evidence for a difference in dynamic body acceleration or stride frequency between the two body masses however there was substantially less variability in both leaning angle and the leaning amplitude of the body when the birds were slimmer. Furthermore, there was some evidence that the slimmer birds exhibited a decrease in waddling amplitude. We suggest the increase in variability of both leaning angle and amplitude, as well as a possibly greater variability in the waddling amplitude, is likely to result from the frontal fat accumulation when the birds are heavier, which may move the centre of mass anteriorly, resulting in a less stable upright posture. This study is the first to use accelerometry to better understand the gait of a species within a specific ecological context: the considerable body mass change exhibited by king penguins. |
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394 |
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1932-6203 |
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yes |
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6516 |
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Journal Article |
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2013 |
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Clim. Past |
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Clim. Past |
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9 |
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1715-1731 |
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902 |
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1814-9324 |
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4534 |
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Title |
New national and regional bryophyte records, 28
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Journal Article |
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2012 |
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Journal of Bryology |
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J. Bryol. |
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33 |
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3 |
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237-247 |
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136 |
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0373-6687 |
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4014 |
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Title |
Highly branched isoprenoids as proxies for variable sea ice conditions in the Southern Ocean |
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Journal Article |
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2011 |
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ANTARCTIC SCIENCE |
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Antarct. Sci. |
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1010 |
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0954-1020 |
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3810 |
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Author |
Ochyra Ryszard, Lebouvier Marc, Cykowska-Marzencka Beata, |
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Journal Article |
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2014 |
Publication |
Cryptogamie, Bryologie |
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1290-0796 |
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35 |
Issue |
4 |
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335-371 |
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136 |
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Association des Amis des Cryptogames |
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1290-0796 |
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5751 |
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Ochyra Ryszard, Zander Richard H, Lebouvier Marc, |
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2014 |
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CRYPTOGAMIE BRYOLOGIE |
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35 |
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1 |
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37-46 |
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136 |
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1290-0796 |
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4346 |
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Author |
Vijver Bart Van De, Cox Eileen J, |
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Title |
Fallacia emmae sp. nov., (Bacillariophyta) a New Soil-Inhabiting Diatom Species from the Sub-Antarctic Region |
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Journal Article |
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2015 |
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Cryptogamie, Algologie |
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Cryptogam., Algol. |
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36 |
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3 |
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245-254 |
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During a survey of the diatom flora of some caves on Île de la Possession, the main island of the Crozet archipelago, a small, unusual naviculoid taxon was observed, initially identified as Fallacia lenzii. The new taxon is described as Fallacia emmae but it shows features of two related genera: Fallacia and Germainiella. Thorough morphological research revealed details that, on the one hand, contradicted its placement in Fallacia, such as the relatively low number of poroids on the conopeum, the absence of external canal apertures beside the raphe slit (Fallacia-feature), and striae that are composed of one slit-like areola (Germainiella-feature). The morphology and taxonomy of the new taxon are discussed and questions are raised about the validity of genera recently split off from the genus Navicula on the basis of one, or occasionally two, morphological features. |
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0181-1568 |
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6342 |
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