Cardenolides in the Defense of Caenocoris nerii (Hemiptera)
- 1 May 1986
- Vol. 46 (3) , 325-329
- https://doi.org/10.2307/3565830
Abstract
Herbivores feeding on cardenolide-containing plants may obtain antidepredatory advantages by sequestering these chemicals. We reared some Caenocoris nerii (Ger.) on their natural food, oleander seeds which contain cardiac glycosides. We raised another group of the bugs by feeding them sunflower seeds (cardenolide-free). We then offered both types of insects to 16 naive common quails. About 85% of all C. nerii survived the quails'' attacks (touch without eating). However, the oleander seed-fed bugs were significantly less likely to be killed (those fatally attacked plus those eaten) compared with those C. nerii eating sunflower seeds. Therefore, while internally manufactured defenses were useful, improved protection was afforded by feeding on oleander seeds.This publication has 11 references indexed in Scilit:
- Pyrazines as warning odour components in the Monarch butterfly, Danaus plexippus, and in moths of the genera Zygaena and Amata (Lepidoptera)Biological Journal of the Linnean Society, 1984
- RELATIVE DEFENSIVE BEHAVIOR OF SOME MOTHS AND THE IMPLICATIONS TO PREDATOR‐PREY INTERACTIONSEntomologia Experimentalis et Applicata, 1983
- SURVIVAL OF DISTASTEFUL INSECTS AFTER BEING ATTACKED BY NAIVE BIRDS: A REAPPRAISAL OF THE THEORY OF APOSEMATIC COLORATION EVOLVING THROUGH INDIVIDUAL SELECTIONEvolution, 1982
- Birds can overcome the cardenolide defence of monarch butterflies in MexicoNature, 1981
- The Cost of Being Aposematic. An Experimental Study of Predation on Larvae of Papilio Machaon by the Great Tit Parus MajorOikos, 1981
- Identification of warning odour components, bitter principles and antifeedants in an aposematic beetle: Metriorrhynchus rhipidius (Coleoptera: Lycidae)Insect Biochemistry, 1981
- Allometry of C6 and C8 alk-2-enals and alka-2,4-dienals in the metathoracic scent gland of Oncopeltus fasciatusComparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1980
- Cardiac Glycosides in the Defensive Secretion of Chrysomelid Beetles: Evidence for Their Production by the InsectsScience, 1977
- Plant poisons in a terrestrial food chain.Proceedings of the National Academy of Sciences, 1967
- Experimental Studies of Mimicry. IV. The Reactions of Starlings to Different Proportions of Models and MimicsThe American Naturalist, 1960