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Title |
Integument coloration signals reproductive success, heterozygosity, and antioxidant levels in chick-rearing black-legged kittiwakes
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Type |
Journal Article |
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Year |
2011 |
Publication |
Naturwissenschaften |
Abbreviated Journal |
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Volume |
98 |
Issue |
9 |
Pages |
773-782 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
Carotenoid pigments are important for immunity and as antioxidants, and carotenoid-based colors are believed to provide honest signals of individual quality. Other colorless but more efficient antioxidants such as vitamins A and E may protect carotenoids from bleaching. Carotenoid-based colors have thus recently been suggested to reflect the concentration of such colorless antioxidants, but this has rarely been tested. Furthermore, although evidence is accruing for multiple genetic criteria for mate choice, carotenoid-based colors have rarely been shown to reflect both phenotypic and genetic quality. In this study, we investigated whether gape, tongue, eye-ring, and bill coloration of chick-rearing black-legged kittiwakes Rissa tridactyla reflected circulating levels of carotenoids and vitamins A and E. We further investigated whether integument coloration reflected phenotypic (body condition and fledging success) and genetic quality (heterozygosity). We found that the coloration of fleshy integuments was correlated with carotenoid and vitamin A levels and fledging success but only in males. Furthermore, the coloration of tongue and eye-ring was correlated with heterozygosity in both males and females. Integument colors might therefore be reliable signals of individual quality used by birds to adjust their parental care during the chick-rearing period. |
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1162 |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0028-1042 |
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Approved |
yes |
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Call Number |
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Serial |
3515 |
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Title |
An individual and a sex odor signature in kittiwakes? Study of the semiochemical composition of preen secretion and preen down feathers
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Type |
Journal Article |
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Year |
2011 |
Publication |
Naturwissenschaften |
Abbreviated Journal |
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Volume |
98 |
Issue |
7 |
Pages |
615-624 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
The importance of olfaction in birds social behavior has long been denied. Avian chemical signaling has thus been relatively unexplored. The black-legged kittiwake provides a particularly appropriate model for investigating this topic. Kittiwakes preferentially mate with genetically dissimilar individuals, but the cues used to assess genetic characteristics remain unknown. As in other vertebrates, their body odors may carry individual and sexual signatures thus potentially reliably signaling individual genetic makeup. Here, we test whether body odors in preen gland secretion and preen down feathers in kittiwakes may provide a sex and an individual signature. Using gas chromatography and mass spectrometry, we found that male and female odors differ quantitatively, suggesting that scent may be one of the multiple cues used by birds to discriminate between sexes. We further detected an individual signature in the volatile and nonvolatile fractions of preen secretion and preen down feathers. These results suggest that kittiwake body odor may function as a signal associated with mate recognition. It further suggests that preen odor might broadcast the genetic makeup of individuals, and could be used in mate choice to assess the genetic compatibility of potential mates. |
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Programme |
1162 |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
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ISSN |
0028-1042 |
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yes |
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Serial |
3514 |
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Title |
Modelling the earth's magnetic field from global to regional scales, in: Geomagnetic Observations and Models, IAGA Special Sopron Book Series |
Type |
Book Chapter |
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Year |
2011 |
Publication |
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Abbreviated Journal |
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Volume |
5 |
Issue |
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Pages |
229-264 |
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Keywords |
Earth and Environmental Science, |
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Abstract |
In the recent years, a large amount of magnetic vector and scalar data have been measured or made available to scientists. They cover different ranges of altitudes from ground to satellite levels and have high horizontal densities over some geographical areas. Processing these potential field data may require alternatives to the widely used Spherical Harmonics. During the past decades, new techniques have been proposed to model regionally the magnetic measurements. They complement the set of older approaches that were revived and sometimes revised in the meantime. The amount of available techniques is intimidating and one often wonders which method is the most appropriate for what purpose. In this paper, we review several modelling strategies. Starting from the Spherical Harmonics, we discuss methods with global support (wavelets, multi-scale, Slepian functions,) and then bring the focus on regional methods with local support (Rectangular Harmonic Analysis, Cylindrical Harmonic Analysis, Spherical Caps,). We briefly examine the theoretical aspects and properties of each approach. We compare them with the help of a unique set of perfect synthetic data that mimic an ideal spatial distribution at a fixed surface. This helps us to better emphasize the theoretical characteristics of each approach and suggest, when relevant, improvements that would be useful for future practical applications. |
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Programme |
139;905 |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Netherlands |
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ISBN |
978-90-481-9858-0 |
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Approved |
yes |
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Call Number |
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Serial |
3579 |
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Author |
Salam Alex P, |
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Title |
Stress Challenges and Immunity in Space
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Type |
Book Chapter |
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Year |
2012 |
Publication |
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Abbreviated Journal |
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Pages |
425-439 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
Concordia Antarctic research station is one of the most isolated research stations on the planet and shares many stressor characteristics with deep space-long duration missions (DSLD). I spent a year at the Concordia in 2009 as a researcher in human biology and medicine for the European Space Agency, investigating the consequences of chronic stress on immunity and sleep. I discuss my experience and offer some brief thoughts on the parallels with DSLD missions. |
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Bachelor's thesis |
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Publisher |
Springer Berlin Heidelberg |
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978-3-642-22272-6 |
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Approved |
yes |
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Call Number |
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Serial |
1889 |
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Author |
Sarti, P.; Negusini, M.; Lanconelli, C.; Lupi, A.; Tomasi, C.; Cacciari, A. |
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Title |
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Type |
Book Chapter |
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Year |
2008 |
Publication |
Geodetic and Geophysical Observations in Antarctica |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
145-177 |
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Programme |
1176 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5516 |
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Author |
Collins, T.; Roulling, F.; Piette, F.; Marx, J.-C.; Feller, G.; Gerday, C.; D'Amico, S. |
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Title |
Fundamentals of Cold-Adapted Enzymes |
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Book Chapter |
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Year |
2008 |
Publication |
Psychrophiles: from Biodiversity to Biotechnology |
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Pages |
211-227 |
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193 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5651 |
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Author |
Amalvict, M.; Willis, P.; Shibuya, K. |
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Title |
Status of DORIS Stations in Antarctica for Precise Geodesy |
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Book Chapter |
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Year |
2007 |
Publication |
Dynamic Planet |
Abbreviated Journal |
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Pages |
94-102 |
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337 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5503 |
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Author |
Bonadonna Francesco, Mardon Jerome, |
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Title |
Besides Colours and Songs, Odour is the New Black of Avian Communication
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Type |
Book Chapter |
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Year |
2013 |
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Abbreviated Journal |
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Volume |
XII |
Issue |
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Pages |
325-339- |
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Programme |
354 |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer New York |
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978-1-4614-5926-2 |
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yes |
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Call Number |
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Serial |
4007 |
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Author |
Hennion, F.; Huiskes, A.; Robinson, S.; Convey, P. |
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Title |
Physiological Traits of Organisms in a Changing Environment |
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Book Chapter |
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2006 |
Publication |
Trends in Antarctic Terrestrial and Limnetic Ecosystems |
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129-159 |
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136 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5563 |
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Author |
Whinam, J.; Copson, G.; Chapuis, J.-L. |
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Title |
Subantarctic Terrestrial Conservation and Management |
Type |
Book Chapter |
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Year |
2006 |
Publication |
Trends in Antarctic Terrestrial and Limnetic Ecosystems |
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Pages |
297-316 |
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136 |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5564 |
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