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J Chem Ecol

Title:		Variation in semiochemical-mediated prey-predator interaction:Ips pini (Scolytidae) andThanasimus dubius (Cleridae)
Author(s):		Herms DA; Haack RA; Ayres BD;
Address:		"The Dow Gardens, 1018 W. Main St., 48640, Midland, Michigan"
Journal Title:		J Chem Ecol
Year:		1991
Volume:		17
Issue:		8
Page Number:		1705 - 1714
DOI:		10.1007/BF00984698
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"The bark beetleIps pini (Say) displays variation in its response to and production of enantiomeric blends of its pheromone ipsdienol. One of the principal predators ofIps pini isThanasimus dubius (F.), which uses ipsdienol as a kairomone for prey location. During 1988 and 1989, in Wisconsin and Michigan, the response of both species to a range of enantiomeric blends of ipsdienol was investigated. Blends tested had the following ratios of the (S)-(+) to (R)-(-) enantiomers: 3%ratio97%, 25%ratio75%, 50%ratio50%, 75%ratio 25%, and 97%ratio 3%. Either 75% (+)ratio25% (-) or 50% (+)ratio50% (-) ipsdienol captured the mostIps pini in both years at both sites. The 25% (+)ratio75% (-) blend also caught moreIps pini than the control during both years at both sites. All blends tested were attractive toThanasimus dubius in both years at both locations. Blend preferences of both species were variable and labile at both sites. Response patterns of both species in Wisconsin were different from those in Michigan each year. Furthermore, response patterns of both species to the ipsdienol blends changed from 1988 to 1989 at both locations. A genetic component to this variation would permit predator-prey coevolution, as well as the development of resistance byIps pini to management strategies based on mass-trapping with single blends"
Keywords:
Notes:		"PubMed-not-MEDLINEHerms, D A Haack, R A Ayres, B D eng 1991/08/01 J Chem Ecol. 1991 Aug; 17(8):1705-14. doi: 10.1007/BF00984698"