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  • 1
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    Dual modes of aging in Mediterranean fruit fly females (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-14
    Description: The life history of medflies is characterized by two physiological modes with different demographic schedules of fertility and survival: a waiting mode in which both mortality and reproduction are low and a reproductive mode in which mortality is very low at the onset of egg laying but accelerates as eggs are laid. Medflies stay in waiting mode when they are fed only sugar. When fed protein, a scarce resource in the wild, medflies switch to reproductive mode. Medflies that switch from waiting to reproductive mode survive longer than medflies kept in either mode exclusively. An understanding of the physiological shift that occurs between the waiting and reproductive modes may yield information about the fundamental processes that determine longevity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carey, J R -- Liedo, P -- Muller, H G -- Wang, J L -- Vaupel, J W -- AG-08761/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):996-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, University of California, Davis, CA 95616, USA. jrcarey@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703516" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*physiology ; Animals ; Dietary Proteins ; Drosophila ; Female ; Longevity ; Male ; Models, Biological ; Reproduction/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Slowing of mortality rates at older ages in large medfly cohorts (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-10-16
    Description: It is generally assumed for most species that mortality rates increase monotonically at advanced ages. Mortality rates were found to level off and decrease at older ages in a population of 1.2 million medflies maintained in cages of 7,200 and in a group of approximately 48,000 adults maintained in solitary confinement. Thus, life expectancy in older individuals increased rather than decreased with age. These results cast doubt on several central concepts in gerontology and the biology of aging: (i) that senescence can be characterized by an increase in age-specific mortality, (ii) that the basic pattern of mortality in nearly all species follows the same unitary pattern at older ages, and (iii) that species have absolute life-span limits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carey, J R -- Liedo, P -- Orozco, D -- Vaupel, J W -- AG08761-01/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1992 Oct 16;258(5081):457-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, University of California, Davis 95616.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1411540" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Diptera/*physiology ; Life Expectancy ; Mortality
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Establishment of the Mediterranean fruit fly in California (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-09-20
    Description: Principles of invasion biology are brought to bear on the question of whether the medfly is established in California. Since its first discovery in 1975, the pest has been captured in the Los Angeles Basin in nine separate years including every year from 1986 through 1990. The trend has become distinct--the intervals between captures are decreasing, the numbers captured are increasing, and the area over which they are detected is expanding. In addition, appearances are seasonal and captures in recent years have occurred in many of the same cities and neighborhoods where medflies were found several years before. Evidence suggests that the medfly may be established in the Los Angeles area and that previous eradication programs did not eradicate the medfly from California. It follows that detection, exclusion, and eradication protocols may need to be reexamined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carey, J R -- New York, N.Y. -- Science. 1991 Sep 20;253(5026):1369-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Entomology, University of California, Davis 95616.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1896848" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; California ; *Diptera/physiology ; Los Angeles ; Models, Biological ; *Pest Control ; Population Growth ; Seasons
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Biodemographic trajectories of longevity (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: Old-age survival has increased substantially since 1950. Death rates decelerate with age for insects, worms, and yeast, as well as humans. This evidence of extended postreproductive survival is puzzling. Three biodemographic insights--concerning the correlation of death rates across age, individual differences in survival chances, and induced alterations in age patterns of fertility and mortality--offer clues and suggest research on the failure of complicated systems, on new demographic equations for evolutionary theory, and on fertility-longevity interactions. Nongenetic changes account for increases in human life-spans to date. Explication of these causes and the genetic license for extended survival, as well as discovery of genes and other survival attributes affecting longevity, will lead to even longer lives.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaupel, J W -- Carey, J R -- Christensen, K -- Johnson, T E -- Yashin, A I -- Holm, N V -- Iachine, I A -- Kannisto, V -- Khazaeli, A A -- Liedo, P -- Longo, V D -- Zeng, Y -- Manton, K G -- Curtsinger, J W -- AG08761/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1998 May 8;280(5365):855-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Demographic Research, Rostock, Germany. jwv@demogr.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599158" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Developed Countries ; Female ; Fertility ; Genes ; Genetic Variation ; Humans ; *Longevity ; Male ; Models, Statistical ; *Mortality
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Aging. It's never too late (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-23
    Description: When organisms as diverse as yeast and rodents are subjected to a restricted diet, they live longer. The good news is, according to Vaupel, Carey, and Christensen in their Perspective, that switching to a restricted diet at any age can yield the benefit of increased longevity--at least in flies (Mair et al.).〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2611955/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2611955/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaupel, James W -- Carey, James R -- Christensen, Kaare -- AG-08761/AG/NIA NIH HHS/ -- P01 AG008761/AG/NIA NIH HHS/ -- P01 AG008761-130003/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 19;301(5640):1679-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Demographic Research, Konrad-Zuse-Strasse 1, D-18057 Rostock, Germany. jwv@demogr.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14500969" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; *Aging ; Animals ; *Caloric Restriction ; Demography ; *Diet ; Drosophila/*physiology ; Female ; Humans ; *Longevity ; Male ; Mortality ; Reproduction ; Risk ; Rodentia ; Sexual Behavior, Animal ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Compositional interpretations of medfly mortality (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-06-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaupel, J W -- Carey, J R -- AG08761/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1993 Jun 11;260(5114):1666-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8503016" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/physiology ; Animals ; Diptera/*physiology ; Models, Biological ; Models, Statistical ; Mortality
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Rates of mortality in populations of Caenorhabditis elegans (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, J L -- Muller, H G -- Capra, W B -- Carey, J R -- AG08761-01/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):827-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973642" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/genetics/*physiology ; Cohort Studies ; Genotype ; Longevity ; Models, Biological ; Models, Statistical ; Mortality
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Induced resistance of cotton seedlings to mites (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-07-06
    Description: Mite populations grew more rapidly on new growth of cotton seedlings that had never been exposed to mites than on new growth of plants whose cotyledons had been previously exposed to them. Experiments in which a second mite introduction on the exposed plants involved a different mite species produced this same result. The substance or substances responsible for the response are transported systemically among leaves of cotton seedlings.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karban, R -- Carey, J R -- New York, N.Y. -- Science. 1984 Jul 6;225(4657):53-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17775661" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Electronic Resource
    Electronic Resource
    Demographic analyses of organophosphate-resistant and susceptible strains of greenhouse whitefly, Trialeurodes vaporariorum, on three cotton cultivars (1992)
    Springer
    Entomologia experimentalis et applicata 65 (1992), S. 21-30 
    Details
    ISSN: 1570-7458
    Keywords: Greenhouse whitefly ; Trialeurodes vaporariorum ; demography ; resistant ; susceptible ; cotton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Laboratory experiments were conducted using organophosphate-resistant and susceptible strains of greenhouse whitefly, Trialeurodes vaporariorum Westwood, to assess age-specific vital rates in individually-held adults, and development and survival in preadults on three cotton cultivars at 27±1 °C, 50±10% RH, and a photoperiod of 16:8 (L:D). Female whiteflies lived longer than males, with a maximum life expectancy of 29 days. Heaviest egg laying occurred at ages between 7 and 18 days when individual whiteflies laid 〉 10 eggs/day. Greenhouse whitefly populations doubled weekly, with stable age distribution of 63% eggs, 28% larvae, 5% pupae, and 4% adults. Analysis of various life history parameters that combine aspects of survival, developmental rates, and fecundity indicated no consistent differences in reproductive fitness between the two greenhouse whitefly strains. Of the three cotton cultivars tested, Pima S-6 was most susceptible, Acala SJ-2 was intermediate and Gumbo 500 was most resistant to greenhouse whitefly. Resistance of Gumbo 500 was expressed as slower developmental rates, reduced survival to adulthood, lower reproductive rates, and lower intrinsic rate of increase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00189713
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  • 10
    Electronic Resource
    Electronic Resource
    Size specific demography of three species of Anastrepha fruit flies (1992)
    Springer
    Entomologia experimentalis et applicata 63 (1992), S. 135-142 
    Details
    ISSN: 1570-7458
    Keywords: Anastrepha obliqua ; A. ludens ; A. serpentina ; Tephritidae ; body size ; reproduction ; insect demography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Individuals of three Anastrepha species: A. obliqua, A. ludens, and A. serpentina (Diptera: Tephritidae), were sorted according to pupal weight in cohorts of large and small flies. Demographic parameters and reproductive patterns and heterogeneity were determined for each cohort. Large flies of the three species presented greater expectation of life and gross fecundity rates. A. ludens was the species with the longest life span (expectation of life of large adults was 110 days) and the greatest gross fecundity rates (1597 eggs/female for the large flies). While, A. obliqua had the shortest mean age of reproduction (33 days), and the greatest daily egg production (14 eggs/female/day). Net fecundity was similar in these two. A. serpentina had lower fecundity rates. Reproductive information for each size and each species include: age-by-parity relations, fraction of sexually mature life in which females lay eggs, and frequency distribution of individual egg production. Results demonstrate that even under constant laboratory conditions and using standard artificial hosts, there is a great deal of life history variation among these Anastrepha species and among other tephritid fruit flies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343573
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