Summary
Frogs(Rana pipiens) fed on blister beetles (Meloidae) or cantharidin, retain cantharidin systemically. After cessation of feeding, they void the compound relatively quickly. Systemic cantharidin does not protect frogs against ectoparasitic feeding by leeches(Hirudo medicinalis) or predation by snakes(Nerodia sipedon). As suggested by our data, and from reports in the early literature, ingestion of cantharidin-containing frogs can pose a health threat to humans.
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Paper no. 95 of the seriesDefense Mechanisms of Arthropods; no. 94 is LaMunyon & Eisner, Psyche (in press)
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Eisner, T., Conner, J., Carrel, J.E. et al. Systemic retention of ingested cantharidin by frogs. Chemoecology 1, 57–62 (1990). https://doi.org/10.1007/BF01325229
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DOI: https://doi.org/10.1007/BF01325229