Ecological Chemistry and the Palatability Spectrum
- 27 September 1968
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 161 (3848), 1349-1350
- https://doi.org/10.1126/science.161.3848.1349
Abstract
A new bioassay for comparing the palatability to avian predators of monarch butterflies reared on various asclepiadaceous food plants containing cardiac glycosides indicates a palatability spectrum. The monarchs reared on one plant species are six times as emetic as those fed another, while those raised on an asclepiad which lacks cardiac glycosides are not emetic at all.Keywords
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