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Author |
Lenourry L. |
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Master 2 |
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2023 |
Publication |
Master 2 |
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Abstract |
Cosupervision: Bonadonna & Le Bohec |
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137 |
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yes |
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8718 |
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Author |
Le Scornec E. |
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Title |
Emperor penguin demography: contributions of recent capture-mark-recapture surveys |
Type |
Master 2 |
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Year |
2023 |
Publication |
Master 2 |
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Abstract |
Cosupervision: Barbraud &Amp; le Bohec |
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137 |
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yes |
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8719 |
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Author |
Sarah Leclaire |
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Book |
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Year |
2023 |
Publication |
Annales de la Fondation Fyssen |
Abbreviated Journal |
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Issue |
36 |
Pages |
80-91 |
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Keywords |
Black-legged kittiwake Differential Allocation ejaculate Fitness Major Histocompatibility Complex |
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Abstract |
Sperm quality determines offspring fitness. However, investment into sperm being costly, it depends on the health or condition of males. According to the differential allocation hypothesis, males should decrease their investment into sperm when mated with a low-quality female. In this study, we show that, in the black-legged kittiwake, a monogamous seabird, sperm quality affects chick performance and that good-quality males produce a sperm of good quality. In addition, males mated with more genetically compatible females produce better quality sperm. This study suggests that the effects of sperm quality on offspring fitness may act as a natural selective pressure on males' differential allocation strategies. |
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1162 |
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yes |
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8722 |
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Title |
A Gull Species Recognizes MHC-II Diversity and Dissimilarity Using Odor Cues |
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Year |
2023 |
Publication |
Chemical signals in vertebrates |
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15 |
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Pages |
139-151 |
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Keywords |
Birds Black-legged kittiwake Intraspecific communication Major histocompatibility complex Olfaction Rissa tridactyla Sexual selection |
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Abstract |
The major histocompatibility complex (MHC) plays a crucial role in the resistance to parasites in vertebrates and is thus often suggested to be an important force driving social interactions, including mating preference. However, the phenotypic cues used by individuals to assess the MHC characteristics of conspecifics are generally unknown. Here, we used behavioral tests to investigate whether, in black-legged kittiwakes, females use odor cues to distinguish male MHC-II diversity and MHC-II dissimilarity. We found that females took less time to peck at an odor sample coming from a male with high or low MHC-II diversity compared to intermediate MHC-II diversity. However, this result is due to the single individual who has only one MHC-II allele. When excluding this individual, females took less time to peck at an odor sample coming from a male with high MHC-II diversity. In addition, when the odor sample came from a male with higher MHC-II dissimilarity, females took less time to peck at the sample, but once they pecked at it, they delayed the use of the sample. Altogether, our results add evidence for olfactory recognition of MHC characteristics in birds, but further studies are needed to determine whether kittiwakes use this ability to optimize fitness. |
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1162 |
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978-3-031-35159-4 |
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yes |
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Serial |
8723 |
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Author |
Ramonet M., Chatterjee A., Ciais P., Levin I., Sha M., Steinbacher M., Sweeney C. |
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Title |
CO? in the Atmosphere: Growth and Trends Since 1850 |
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Book |
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Year |
2023 |
Publication |
Oxford research encyclopedia of climate science |
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416 |
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978-0-19-022862-0 |
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yes |
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Serial |
8724 |
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Author |
Portier E., Mercier D., Decaulne A. |
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Title |
Schmidt-Hammer Dating of Five Rock Slope Failures in the Westfjords of Iceland |
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Peer-reviewed symposium |
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Year |
2023 |
Publication |
European Young Geomorphologists Meeting, 9-11 June 2023, Chamonix-Courmayeur, France |
Abbreviated Journal |
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1266 |
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yes |
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8728 |
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Author |
Desoubeaux G., Boulinier T., Jorry T., Bocquet C., Lemonnier C., Robin J-p., Bize P., Baron J., Chesnay A., Bailly E., Stier A., Viblanc V.A |
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Title |
Fungal contamination in the environment of penguin communities in the French Southern Territories |
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Peer-reviewed symposium |
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Year |
2023 |
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119 |
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8729 |
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Author |
Lemonnier C., Bize P., Stier A., Cillard A., Montblanc M., Robin J-p., Handrich Y., Bost C-a., Viblanc V. |
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Title |
Compensating for harsh conditions at sea: plasticity of king penguin foraging strategies facing an experimental increase in workload |
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Peer-reviewed symposium |
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2023 |
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119 |
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8730 |
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Lemonnier C., Schull Q., Stier A., Boonstra R., Delahanty B., Lefol E., Durand L., Pardonnet S., Robin Jp., Criscuolo F., Bize P., Viblanc Va |
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Title |
Adaptive phenotypic programming to social density in king penguins |
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Peer-reviewed symposium |
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2023 |
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yes |
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8731 |
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Author |
Portier E., Mercier D., Decaulne A. |
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Peer-reviewed symposium |
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2023 |
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Deglaciation Iceland Landslides Paraglacial |
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1266 |
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yes |
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8732 |
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