Journal ArticleDOI
Reactions of various predators to insects storing heart poisons (cardiac glycosides) in their tissues
Miriam Rothschild,D. N. Kellett +1 more
TLDR
Experiments in which mammals and birds were fed with insects which sequester and store cardiac glycosides, and the insensi-tivity of the quail to these substances is recorded are recorded.Abstract:
SYNOPSIS
Notes are given of experiments in which mammals and birds were fed with insects which sequester and store cardiac glycosides, and the insensi-tivity of the quail (Coturnix japonicus Tern.) to these substances is recorded. The variation in predators' reactions to toxic insects is discussed.read more
Citations
More filters
Journal ArticleDOI
Secondary compounds as protective agents
TL;DR: Insect Chemoreceptors, Insect-deterrent Properties of Secondary Compounds, and the Complexity of Allelopathy.
Journal ArticleDOI
Field observations and feeding experiments on the responses of rufous‐tailed jacamars (Galbula ruficauda) to free‐flying butterflies in a tropical rainforest
TL;DR: The captive jacamars were able to discriminate between the very similar colour patterns of some Batesian mimics and their models, and could memorize the palatability of a large variety of butterflies.
Journal ArticleDOI
Mortality of the Monarch Butterfly (Danaus plexippus L.): Avian Predation at Five Overwintering Sites in Mexico.
TL;DR: Observations of monarch overwintering sites in Mexico and observations of birds foraging in mixed flocks indicate that individual birds of several species have learned to penetrate the monarch's cardenolide-based chemical defense.
Journal ArticleDOI
Pyrrolizidine alkaloids in arctiid moths (Lep.) with a discussion on host plant relationships and the role of these secondary plant substances in the Arctiidae
TL;DR: It is suggested that the Arctiid moths' own deterrent secretions, directed against vertebrate predators, pre-adapts them for feeding on foliage likewise protected against large herbivores by toxic secondary plant substances such as cardenolides and pyrrolizidine alkaloids.
Journal ArticleDOI
Plant-determined variation in the cardenolide content, thin-layer chromatography profiles, and emetic potency of monarch butterflies,Danaus plexippus reared on the milkweed,Asclepias eriocarpa in California.
TL;DR: The monarch is seen as a central organism involved in a coevolutionary triad simultaneously affecting and affected by both its avian predators and the secondary chemistry of the milkweeds with which it is intimately involved.
References
More filters
Journal ArticleDOI
XXXII. Contributions to an Insect Fauna of the Amazon Valley. Lepidoptera: Heliconidæ.
Journal ArticleDOI
Plant poisons in a terrestrial food chain.
TL;DR: In the absence of complete metamorphosis in terrestrial insects, the adult food is likely to be the same as or similar to that of the nymph, with the result that the imago is not a pristine entity as far as food intake is concerned.
Journal ArticleDOI
Ecological Chemistry and the Palatability Spectrum
TL;DR: A new bioassay for comparing the palatability to avian predators of monarch butterflies reared on various asclepiadaceous food plants containing cardiac glycosides indicates aPalatability spectrum.
Journal ArticleDOI
Heart Poisons in the Monarch Butterfly
Journal ArticleDOI
Über die ursache der speciesunterschiede in der digitalisempfindlichkeit
K. Repke,M. Est,H. J. Portius +2 more
TL;DR: The results favour the conclusion that the species variations in the susceptibility of the heart muscle and the intact animal to cardiotonics are largely based on corresponding variations in one of the different transport ATPases to inhibition by these compounds.