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J Chem Ecol


Title:Circadian rhythms of sexual behavior and pheromone titers of two closely related moth species autographa gamma and Cornutiplusia circumflexa
Author(s):Mazor M; Dunkelblum E;
Address:"Department of Entomology and Units of Chemistry and Nematology, Institute of Plant Protection, ARO, The Volcani Center, Bet Dagan, 50250, Israel. mmazor@Volcani.agri.gov.il"
Journal Title:J Chem Ecol
Year:2005
Volume:20050817
Issue:9
Page Number:2153 - 2168
DOI: 10.1007/s10886-005-6082-7
ISSN/ISBN:0098-0331 (Print) 0098-0331 (Linking)
Abstract:"Two closely related plusiinae moths, Autographa gamma Linnaeus and Cornutiplusia circumflexa Linnaeus, are sympatric in Israel. Both species use identical sex pheromone components but in different ratios, and do not attempt to mate with each other. In addition to the effective reproductive separation by their sex pheromones, the sexual behavior of both species was compared to determine whether the lack of selection pressure might create additional barriers to cross-attraction and cross-mating. We found the gamma moth to be sexually active almost equally throughout the scotophase, whereas the sexual activity of C. circumflexa was limited to a short period at the end of the scotophase when most of the gamma moths had already mated. Higher levels of calling were observed with older females. There was a close relationship between pheromone titer and calling activity in both species"
Keywords:"Animals Circadian Rhythm Female Male Moths/metabolism/*physiology Sex Attractants/*analysis *Sexual Behavior, Animal Time Factors;"
Notes:"MedlineMazor, Michal Dunkelblum, Ezra eng Comparative Study 2005/09/01 J Chem Ecol. 2005 Sep; 31(9):2153-68. doi: 10.1007/s10886-005-6082-7. Epub 2005 Aug 17"

 
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