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Oecologia

Title:		Facultative monophagy as a consequence of prior feeding experience: behavioral and physiological specialization in Colias philodice larvae
Author(s):		Karowe DN;
Address:		"Department of Biology, University of Michigan, 48109, Ann Arbor, MI, USA"
Journal Title:		Oecologia
Year:		1989
Volume:		78
Issue:		1
Page Number:		106 - 111
DOI:		10.1007/BF00377204
ISSN/ISBN:		1432-1939 (Electronic) 0029-8549 (Linking)
Abstract:		"Although newly-emerged Colias philodice readily accept Medicago sativa, Melilotus alba, and Coronilla varia, fifth instar larvae reared on any single plant species display a highly significant induced feeding preference for their rearing host. Forced host-switching reveals that fifth instar relative growth rate (RGR) on M. sativa and M. alba is significantly reduced by prior feeding on either alternative host. Moreover, regardless of rearing diet, switching to a novel host during the fifth instar results in reduced RGR, relative consumption rate (RCR), efficiency of conversion of digested food (ECD), and pupal weight. These results support the hypothesis that induction of feeding preference is an adaptive response that predisposes larvae to feed on the plant species they are most capable of utilizing for growth"
Keywords:		Colias Herbivory Host-switching Nutritional ecology Preference induction;
Notes:		"PubMed-not-MEDLINEKarowe, D N eng Germany 1989/01/01 Oecologia. 1989 Jan; 78(1):106-111. doi: 10.1007/BF00377204"