Abstract：
:Quantities of attractive (exo-brevicomin and frontalin) and inhibitory (trans-verbenol, verbenone, and ipsdienol) pheromones were monitored in both sexes ofDendroctonus brevicomis during their colonization of a ponderosa pine. Verbenone was found in males in the greatest amounts at the time of landing, and it declined more rapidly than the other pheromones in either sex. The amounts of frontalin andexo-brevicomin in males and females, respectively, increased after initial boring within the host but began to decline after mating. The quantity oftrans-verbenol in both sexes (females had significantly more) declined more gradually thanexo-brevicomin, frontalin, and verbenone. Ipsdienol was found only in males during the initial stages of attack when encountering the resin. It is suggested that along with a general decline in all pheromonal components, a sufficient change in the ratio of the attractive pheromones to an inhibitory pheromone,trans-verbenol, may play a role in termination of aggregation.trans-Verbenol may also function along with verbenone and ipsdienol in limiting the density of attack and thus intraspecific competition. These inhibitory pheromones also appear to cause several competing species of bark beetle to avoid landing in areas infested withD. brevicomis, even when their own pheromone is present.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Byers JA,Wood DL,Craig J,Hendry LBdoi
10.1007/BF00987969subject
Has Abstractpub_date
1984-06-01 00:00:00pages
861-77issue
6eissn
0098-0331issn
1573-1561journal_volume
10pub_type
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更新日期：1985-11-01 00:00:00
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更新日期：2015-04-01 00:00:00
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更新日期：1994-05-01 00:00:00
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pub_type： 杂志文章
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更新日期：1983-10-01 00:00:00
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doi：10.1007/BF01021282
更新日期：1990-01-01 00:00:00
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更新日期：1993-10-01 00:00:00
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pub_type： 杂志文章
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更新日期：1994-02-01 00:00:00
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更新日期：1987-03-01 00:00:00
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pub_type： 杂志文章
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