Coexisting congeners: demography, competition, and interactions with cardenolides for two milkweed‐feeding aphids

@inproceedings{Mooney2008CoexistingCD,
  title={Coexisting congeners: demography, competition, and interactions with cardenolides for two milkweed‐feeding aphids},
  author={Kailen A Mooney and Patricia L. Jones and Anurag A Agrawal},
  year={2008}
}
Explaining the coexistence of closely related species sharing a single resource has been a long-standing challenge in ecology. Here we report on studies comparing the aphids Aphis nerii and A. asclepiadis that feed sympatrically on the milkweed Asclepias syriaca in northeastern North America. We sought to identify tradeoffs among species' attributes that might promote coexistence, but in most instances A. nerii was superior to A. asclepiadis. Aphis nerii was 84% more fecund, fed upon 880% more… CONTINUE READING
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