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… 
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