The evolutionary ecology of generalization: among-year variation in host plant use and offspring survival in a butterfly.

@article{Wiklund2009TheEE,
  title={The evolutionary ecology of generalization: among-year variation in host plant use and offspring survival in a butterfly.},
  author={Christer Wiklund and Magne Friberg},
  journal={Ecology},
  year={2009},
  volume={90 12},
  pages={3406-17}
}
The majority of phytophagous insects are relatively specialized in their food habits, and specialization in resource use is expected to be favored by selection in most scenarios. Ecological generalization is less common and less well understood, but it should be selected for by (1) rarity of resources, (2) resource inconstancy, or (3) unreliability of resource quality. Here, we test these predictions by studying egg distribution and offspring survival in the orange tip butterfly, Anthocharis… CONTINUE READING
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