A contribution to the explanation of the larch bud moth cycle, the polymorphic fitness hypothesis

@article{Baltensweiler1993ACT,
  title={A contribution to the explanation of the larch bud moth cycle, the polymorphic fitness hypothesis},
  author={Werner Baltensweiler},
  journal={Oecologia},
  year={1993},
  volume={93},
  pages={251-255}
}
Studies of fluctuating insect populations generally discuss the regulating processes at high insect numbers, but very rarely why a cycling population at low densities switches immediately from the declining phase to the increasing phase of the cycle. A long-term study of the larch bud moth (Zeiraphera diniana Gn) has suggested that the key to recovery is assortative mating of specific phenotypes. Z. diniana exhibits distinct host races living either on the deciduous larch or evergreen pines and… CONTINUE READING

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