Natural Genetic Variation of Life Span, Reproduction, and Juvenile Growth in Daphnia.

@article{Dudycha1999NaturalGV,
  title={Natural Genetic Variation of Life Span, Reproduction, and Juvenile Growth in Daphnia.},
  author={Jeffry L. Dudycha and Alan J. Tessier},
  journal={Evolution; international journal of organic evolution},
  year={1999},
  volume={53 6},
  pages={1744-1756}
}
The evolutionary theory of senescence predicts that high extrinsic mortality in natural populations should select for accelerated reproductive investment and shortened life span. Here, we test the theory with natural populations of the Daphnia pulex-pulicaria species complex, a group of freshwater zooplankton that spans an environmental gradient of habitat permanence. We document substantial genetic variation in demographic life-history traits among parent and hybrid populations of this complex… CONTINUE READING

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