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pro vyhledávání: '"James W. Curtsinger"'
Autor:
James W. Curtsinger
Publikováno v:
Biogerontology. 21:721-730
There are two life history landmarks that can be used to define the terminal period in individual Drosophila melanogaster females: the cessation of daily oviposition, which defines the start of the retired stage, and final oviposition, which defines
Autor:
James W. Curtsinger
Publikováno v:
Evolution. 70:1297-1306
Late-life plateaus in age-specific mortality have been an evolutionary and biodemographic puzzle for decades. Although classic theory on the evolution of senescence predicts late-life walls of death, observations in experimental organisms document th
Autor:
James W. Curtsinger
Publikováno v:
Biogerontology. 20(4)
Artificial selection for increased life span in experimental populations of Drosophila melanogaster sometimes produces long-lived populations that exhibit greater fecundity than unselected controls. The absence of a trade-off between survival and rep
Autor:
James W. Curtsinger
Publikováno v:
The journals of gerontology. Series A, Biological sciences and medical sciences. 74(10)
The homeostatic properties of reproduction in aging female Drosophila melanogaster are investigated. Classic studies based on cohort analysis suggest that homeostatic capacity declines gradually as daily oviposition rates decline in aging flies. Anal
Autor:
James W. Curtsinger, Aziz A. Khazaeli
Publikováno v:
Demographic Research, Vol 30, p 10 (2014)
BACKGROUNDProgress in understanding senescence requires information about age-dependent changes in individual organisms. However, for experimental systems such as Drosophila melanogaster we usually do not know whether population trajectories are an a
Autor:
James W. Curtsinger
Publikováno v:
Experimental Gerontology. 48:1338-1342
Population trajectories of age-specific fecundity in Drosophila melanogaster typically decline with increasing age and then exhibit an upward inflection, or "plateau", at the oldest ages. This pattern has been interpreted as evidence of an evolved an
Autor:
James W, Curtsinger
Publikováno v:
Evolution; international journal of organic evolution. 70(6)
Late-life plateaus in age-specific mortality have been an evolutionary and biodemographic puzzle for decades. Although classic theory on the evolution of senescence predicts late-life walls of death, observations in experimental organisms document th
Autor:
James W. Curtsinger, Aziz A. Khazaeli
Publikováno v:
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences. 68:546-553
Populations of Drosophila melanogaster that have been artificially selected for late age of reproduction evolve longer life spans and, in some cases, reduced early fecundity. The negative correlation is widely interpreted as evidence of antagonistic
Autor:
James W. Curtsinger
Publikováno v:
The journals of gerontology. Series A, Biological sciences and medical sciences. 70(12)
Life history observations at the level of individual model organisms are relatively scarce, but highly informative. Here I analyze published data on the survival and lifetime fecundity of 3,971 individually housed, mated Drosophila melanogaster femal
Autor:
James W. Curtsinger
Publikováno v:
Experimental gerontology. 72
Late-life plateaus have been described in both cohort and individual trajectories of fecundity in Drosophila melanogaster females. Here I examine life history data recently analyzed by Le Bourg and Moreau (2014) and show that non-linearity in the coh