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Environ Entomol

Title:		The Effect of Feeding and Mate Presence on the Pheromone Production of the Spruce Beetle (Coleoptera: Curculionidae)
Author(s):		Isitt RL; Bleiker KP; Pureswaran DS; Hillier NK; Huber DPW;
Address:		"Department of Biology, University of New Brunswick, Fredericton, Canada. Canadian Forest Service, Pacific Forestry Centre, Victoria, Canada. Canadian Forest Service, Laurentian Forestry Centre, rue de PEPS, Quebec City, Canada. Department of Biology, Acadia University, Wolfville, Canada. Ecosystem Science and Management Program, University of Northern British Columbia, Prince George, Canada"
Journal Title:		Environ Entomol
Year:		2018
Volume:		47
Issue:		5
Page Number:		1293 - 1299
DOI:		10.1093/ee/nvy092
ISSN/ISBN:		1938-2936 (Electronic) 0046-225X (Linking)
Abstract:		"Dendroctonus rufipennis (Kirby, Coleoptera: Curculionidae) uses pheromone blends containing aggregative components (frontalin, verbenene, 1-methyl-2-cyclohexen-1-ol [MCOL], and seudenol) and an anti-aggregative component (3-methyl-2-cyclohexen-1-one [MCH]) to coordinate attacks against host trees, but little is known about the influence of external stimuli on pheromone production. We conducted feeding experiments followed by pheromone extractions to determine if feeding duration and mate presence affected pheromone production in D. rufipennis. Unfed beetles of both sexes produced very little of any pheromone component. Females fed for 48 h produced significantly more MCH and MCOL compared to those which fed for 24 h. Males fed for 48 h produced significantly less seudenol than those which fed for 24 h. Male presence did not significantly affect female pheromone production. We propose that the pheromone blend produced by beetles transitions from aggregative to anti-aggregative shortly after colonizing a host, regardless of mate presence"
Keywords:		"Animals Feeding Behavior Female Male Pheromones/*metabolism Sexual Behavior, Animal Weevils/*metabolism;"
Notes:		"MedlineIsitt, R L Bleiker, K P Pureswaran, D S Hillier, N K Huber, D P W eng Research Support, Non-U.S. Gov't England 2018/07/10 Environ Entomol. 2018 Oct 3; 47(5):1293-1299. doi: 10.1093/ee/nvy092"