Effect of extrinsic mortality on the evolution of senescence in guppies

@article{Reznick2004EffectOE,
  title={Effect of extrinsic mortality on the evolution of senescence in guppies},
  author={David N Reznick and Michael J. Bryant and Derek A. Roff and Cameron K. Ghalambor and Dionna E. Ghalambor},
  journal={Nature},
  year={2004},
  volume={431},
  pages={1095-1099}
}
Classical theories for the evolution of senescence predict that organisms that experience low mortality rates attributable to external factors, such as disease or predation, will evolve a later onset of senescence. Here we use patterns of senescence in guppies derived from natural populations that differ in mortality risk to evaluate the generality of these predictions. We have previously found that populations experiencing higher mortality rates evolve earlier maturity and invest more in… Expand

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References

SHOWING 1-10 OF 54 REFERENCES
The evolution of senescence in fish
TLDR
It is argued that fish share many of the same general mechanisms that shape the evolution of senescence in other vertebrates, and statistical analyses of life history data show the same patterns of correlation among traits as seen in birds and mammals. Expand
SENESCENCE IN NATURAL POPULATIONS OF MAMMALS: A COMPARATIVE STUDY
  • D. Promislow
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1991
TLDR
Evidence is presented in support of the hypothesis that senescence will be lower in large‐brained taxa, an increase in the probability of mortality with age, which is highest in short‐lived species with short generation times. Expand
DOES INCREASED MORTALITY FAVOR THE EVOLUTION OF MORE RAPID SENESCENCE?
  • P. Abrams
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1993
TLDR
A simple theoretical analysis of how extrinsic mortality should affect the rate of senescence under different evolutionary and population dynamical assumptions shows Williams's hypothesis is most likely to be supported when density dependence acts primarily on fertility and does not differentially decrease the fertilities of older individuals. Expand
The evolution of senescence in natural populations of guppies (Poecilia reticulata): a comparative approach
TLDR
This presentation will focus on the pilot study, which evaluated life span, lifetime reproduction, and the patterns of aging in laboratory populations of guppies and will also report on the progress in the ongoing comparative studies of senescence in natural populations. Expand
ANTAGONISTIC PLEIOTROPY, MORTALITY SOURCE INTERACTIONS, AND THE EVOLUTIONARY THEORY OF SENESCENCE
  • P. Williams, T. Day
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 2003
TLDR
A model of antagonistic pleiotropy is used to investigate the consequences that interactions between environmental hazard and internal condition can have for Williams's hypothesis, and finds that an increase in interactive extrinsic sources of mortality makes it less likely that an individual will survive from birth to any given age, weakening selection against physiological deterioration at all ages and thus favoring more rapid senescence. Expand
Experimental evolution of aging, growth, and reproduction in fruitflies.
TLDR
These results confirm the key role of extrinsic mortality rates in the evolution of growth, maturation, reproduction, and aging, and they do so with a selection regime that maintained selection on fertility throughout life while holding population densities constant. Expand
Extraordinary lifespans in ants: a test of evolutionary theories of ageing
TLDR
It is shown that the evolution of eusociality is associated with a 100-fold increase in insect lifespan, predicted by evolutionary theories because termite, bee and ant queens live in colonies that are sheltered and heavily defended against predators. Expand
Altitudinal variation for senescence in Melanoplus grasshoppers
TLDR
It is suggested that high-elevation populations have evolved accelerated senescence as a direct or an indirect result of selection on reproductive schedules, which are potentially truncated by severe winter conditions at the elevated sites. Expand
THE EVOLUTION OF AVIAN SENESCENCE PATTERNS : IMPLICATIONS FOR UNDERSTANDING PRIMARY AGING PROCESSES
TLDR
The study of aging in birds will lead to an integrated understanding of physiological aging processes well grounded in an evolutionary paradigm, and greater communication and collaboration among comparative gerontologists and ornithologists is encouraged. Expand
Retarded senescence in an insular population of Virginia opossums (Didelphis virginiana)
TLDR
Insular female opossums were found to exhibit greater survivorship and reduced litter sizes at all ages, as well as slower acceleration of age-specific mortality, a generalized measure of physiological ageing in comparison with those on the mainland. Expand
...
1
2
3
4
5
...