Food Aversion Learning by the Hermit Crab Pagurus granosimanus

Autor:	Lisbeth Francis, Dana Eldridge, Keith Wight
Rok vydání:	1990
Předmět:	Anomura biology Decapoda Ecology digestive oral and skin physiology food and beverages Zoology Novel food Familiar food biology.organism_classification Hermit crab Crustacean Taste aversion Pagurus granosimanus General Agricultural and Biological Sciences
Zdroj:	The Biological Bulletin. 178:205-209
ISSN:	1939-8697 0006-3185
DOI:	10.2307/1541820
Popis:	The common intertidal hermit crab Pagurus granosimanus learns in one or two trials to reject an attractive, novel food (beef) when illness is induced by lithium chloride injected one hour after the animal accepts and eats the beef. Crabs fed a familiar food (fish) before lithium chloride injection do not learn to avoid the fish. Nor do they learn to reject beef when injected with a sodium chloride solution, or when punctured with a hypodermic needle one hour after their first and second beef meals. Because many crustaceans are scavengers and generalist feeders, they must commonly encounter a wide variety of toxic foods. Quickly acquired and long-lasting aversion to a new food eaten a few hours before the onset of a serious physiological upset could cause these animals to avoid such hazardous foods in the future. Food aversion learning has never before been reported in a crustacean.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4324b2e4066513248985099cbbb3031 https://doi.org/10.2307/1541820 Zobrazit plný text záznamu