Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies
Experiments based on over 400,000 medflies revealed that females maintained on a normal diet (sucrose plus protein) have a higher life expectancy than males maintained on a normal diet, with a difference of 1.30 +/- 0.27 days in favor of females. However, this sex differential reverses under protein deprivation, with a difference of 2.24 +/- 0.18 days in favor of males. The reversal of the male-female life expectancy differential is caused by a sustained surge in early female mortality under protein deprivation that is tied to egg-laying and physiological processes. In contrast, male mortality and life expectancy are only mildly affected by protein deprivation. The surge in early mortality for female medfly cohorts is an instance of a vulnerable period. These vulnerable periods are linked with patterns in hazard rates.
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Format: | Texto biblioteca |
Language: | eng |
Subjects: | Ceratitis capitata, Moscas de la fruta, Longevidad, Población de insectos, Mortalidad, Artfrosur, |
Online Access: | http://www.pnas.org/content/94/6/2762.long |
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KOHA-OAI-ECOSUR:196202024-03-12T12:35:52ZEarly mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies Müller, Hans Georg Doctor autor 20952 Wang, Jane Ling Doctora autor 21061 Capra, William B. autor Liedo Fernández, Pablo Doctor autor 67 Carey, James R. Doctor autor 20199 textengExperiments based on over 400,000 medflies revealed that females maintained on a normal diet (sucrose plus protein) have a higher life expectancy than males maintained on a normal diet, with a difference of 1.30 +/- 0.27 days in favor of females. However, this sex differential reverses under protein deprivation, with a difference of 2.24 +/- 0.18 days in favor of males. The reversal of the male-female life expectancy differential is caused by a sustained surge in early female mortality under protein deprivation that is tied to egg-laying and physiological processes. In contrast, male mortality and life expectancy are only mildly affected by protein deprivation. The surge in early mortality for female medfly cohorts is an instance of a vulnerable period. These vulnerable periods are linked with patterns in hazard rates.Experiments based on over 400,000 medflies revealed that females maintained on a normal diet (sucrose plus protein) have a higher life expectancy than males maintained on a normal diet, with a difference of 1.30 +/- 0.27 days in favor of females. However, this sex differential reverses under protein deprivation, with a difference of 2.24 +/- 0.18 days in favor of males. The reversal of the male-female life expectancy differential is caused by a sustained surge in early female mortality under protein deprivation that is tied to egg-laying and physiological processes. In contrast, male mortality and life expectancy are only mildly affected by protein deprivation. The surge in early mortality for female medfly cohorts is an instance of a vulnerable period. These vulnerable periods are linked with patterns in hazard rates.Adobe Acrobat profesional 6.0 o superiorCeratitis capitataMoscas de la frutaLongevidadPoblación de insectosMortalidadArtfrosurDisponible en líneaProceedings of the National Academy of Scienceshttp://www.pnas.org/content/94/6/2762.longDisponible para usuarios de ECOSUR con su clave de acceso |
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Ceratitis capitata Moscas de la fruta Longevidad Población de insectos Mortalidad Artfrosur Ceratitis capitata Moscas de la fruta Longevidad Población de insectos Mortalidad Artfrosur |
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Ceratitis capitata Moscas de la fruta Longevidad Población de insectos Mortalidad Artfrosur Ceratitis capitata Moscas de la fruta Longevidad Población de insectos Mortalidad Artfrosur Müller, Hans Georg Doctor autor 20952 Wang, Jane Ling Doctora autor 21061 Capra, William B. autor Liedo Fernández, Pablo Doctor autor 67 Carey, James R. Doctor autor 20199 Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies |
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Experiments based on over 400,000 medflies revealed that females maintained on a normal diet (sucrose plus protein) have a higher life expectancy than males maintained on a normal diet, with a difference of 1.30 +/- 0.27 days in favor of females. However, this sex differential reverses under protein deprivation, with a difference of 2.24 +/- 0.18 days in favor of males. The reversal of the male-female life expectancy differential is caused by a sustained surge in early female mortality under protein deprivation that is tied to egg-laying and physiological processes. In contrast, male mortality and life expectancy are only mildly affected by protein deprivation. The surge in early mortality for female medfly cohorts is an instance of a vulnerable period. These vulnerable periods are linked with patterns in hazard rates. |
format |
Texto |
topic_facet |
Ceratitis capitata Moscas de la fruta Longevidad Población de insectos Mortalidad Artfrosur |
author |
Müller, Hans Georg Doctor autor 20952 Wang, Jane Ling Doctora autor 21061 Capra, William B. autor Liedo Fernández, Pablo Doctor autor 67 Carey, James R. Doctor autor 20199 |
author_facet |
Müller, Hans Georg Doctor autor 20952 Wang, Jane Ling Doctora autor 21061 Capra, William B. autor Liedo Fernández, Pablo Doctor autor 67 Carey, James R. Doctor autor 20199 |
author_sort |
Müller, Hans Georg Doctor autor 20952 |
title |
Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies |
title_short |
Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies |
title_full |
Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies |
title_fullStr |
Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies |
title_full_unstemmed |
Early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in Mediterranean fruit flies |
title_sort |
early mortality surge in protein-deprived females causes reversal of sex differential of life expectancy in mediterranean fruit flies |
url |
http://www.pnas.org/content/94/6/2762.long |
work_keys_str_mv |
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