Life history response of Mediterranean fruit flies to dietary restriction

James R. Carey, Pablo Liedo, Lawrence Harshman, Ying Zhang, Hans Georg Müller, Linda Partridge, Jane Ling Wang

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

The purpose of this study was to investigate medfly longevity and reproduction across a broad spectrum of diet restriction using a protocol similar to those applied in most rodent studies. Age-specific reproduction and age of death were monitored for 1200 adult males and 1200 females, each individually maintained on one of 12 diets from ad libitum to 30% of ad libitum. Diet was provided in a fixed volume of solution that was fully consumed each day, ensuring control of total nutrient consumption for every fly. Contrary to expectation and precedence, increased longevity was not observed at any level of diet restriction. Among females, reproduction continued across all diet levels despite the cost in terms of increased mortality. Among males, life expectancy exceeded that of females at most diet levels. However, in both sexes, mortality increased more sharply and the pattern of survival changed abruptly once the diet level fell to 50% of ad libitum or below, even though the energetic demands of egg production has no obvious counterpart in males. We believe that a more complete picture of the life table response to dietary restriction will emerge when studies are conducted on a wider range of species and include both sexes, more levels of diet, and the opportunity for mating and reproduction.

Original languageEnglish (US)
Pages (from-to)140-148
Number of pages9
JournalAging cell
Volume1
Issue number2
DOIs
StatePublished - Jan 1 2002

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Ceratitis capitata
Diet
Reproduction
Life Tables
Mortality
Life Expectancy
Diptera
Ovum
Rodentia
Costs and Cost Analysis
Food

ASJC Scopus subject areas

  • Aging
  • Cell Biology

Cite this

Carey, J. R., Liedo, P., Harshman, L., Zhang, Y., Müller, H. G., Partridge, L., & Wang, J. L. (2002). Life history response of Mediterranean fruit flies to dietary restriction. Aging cell, 1(2), 140-148. https://doi.org/10.1046/j.1474-9728.2002.00019.x

Life history response of Mediterranean fruit flies to dietary restriction. / Carey, James R.; Liedo, Pablo; Harshman, Lawrence; Zhang, Ying; Müller, Hans Georg; Partridge, Linda; Wang, Jane Ling.

In: Aging cell, Vol. 1, No. 2, 01.01.2002, p. 140-148.

Research output: Contribution to journalArticle

Carey, JR, Liedo, P, Harshman, L, Zhang, Y, Müller, HG, Partridge, L & Wang, JL 2002, 'Life history response of Mediterranean fruit flies to dietary restriction', Aging cell, vol. 1, no. 2, pp. 140-148. https://doi.org/10.1046/j.1474-9728.2002.00019.x
Carey JR, Liedo P, Harshman L, Zhang Y, Müller HG, Partridge L et al. Life history response of Mediterranean fruit flies to dietary restriction. Aging cell. 2002 Jan 1;1(2):140-148. https://doi.org/10.1046/j.1474-9728.2002.00019.x
Carey, James R. ; Liedo, Pablo ; Harshman, Lawrence ; Zhang, Ying ; Müller, Hans Georg ; Partridge, Linda ; Wang, Jane Ling. / Life history response of Mediterranean fruit flies to dietary restriction. In: Aging cell. 2002 ; Vol. 1, No. 2. pp. 140-148.
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