Journal
JOURNAL OF CHEMICAL ECOLOGY
Volume 35, Issue 12, Pages 1384-1410Publisher
SPRINGER
DOI: 10.1007/s10886-009-9724-3
Keywords
Anthribidae; Bark beetles; Betula papyrifera; Biodiversity; Buprestidae; Cerambycidae; Cleridae; Coleoptera; Curculionidae; Dendroctonus rufipennis; Dendroctonus simplex; Dendroctonus valens; Dryocoetes autographus; Histeridae; Host attractants; Hylurgops rugipennis pinifex; Ipsdienol; Ipsenol; Ips grandicollis; Ips perroti; Ips perturbatus; Ips pini; Kairomones; Minnesota; Natural disturbances; Nemonychidae; Pheromones; Picea glauca; Pinenes; Pinus banksiana; Populus tremuloides; Predators; Salpingidae; Scolytidae; Sirex behrensii; Siricidae; Semiochemicals; Tenebrionidae; Wind-disturbance; Woodborers
Categories
Funding
- Departments of Entomology and Forest Resources, UMN
- Dayton Natural History Fund
- Bell Museum of Natural History
- Carolyn M. Crosby Graduate School Fellowship
- Alexander P. and Lydia Anderson Graduate School Fellowship
- Doctoral Dissertation Graduate School Fellowship
- Doctoral Dissertation Research Graduate School Award
- University of Minnesota
- Undergraduate Research Opportunity Program (UROP) Scholarships
- Minnesota Agricultural Experiment Station [MN-17-070, MIN-42-034]
- USDA Forest Service-Forest Health Monitoring, Evaluation Monitoring Program [01-GD-11244225-196, 01-DG-11244225-196]
- Joint Fire Science Program [00-2-23]
- USDA Forest Service Northern and Pacific Southwest Research Stations
- Daniel B. Warnell School of Forestry
- Natural Resources, University of Georgia
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From 2000 through 2003 we used semiochemical-baited traps in northeastern Minnesota, USA, to assess changes in assemblages of subcortical forest insects after a catastrophic wind storm in 1999 and subsequent (1999-2000) fuel-reduction activities (salvage-logging and prescribed-burning). We determined the regional efficacy of fifteen semiochemical blends (pheromones and kairomones) as attractants for target and non-target subcortical insect species (Coleoptera: Anthribidae, Buprestidae, Cerambycidae, Cleridae, Cucujidae, Curculionidae, Histeridae, Nemonychidae, Salpingidae, Scolytidae, Tenebrionidae, and Hymenoptera: Siricidae). During the four summers, we trapped 86,471 subcortical insects (143 species) in baited and unbaited Lindgren funnel traps, and 500 beetles (44 species) in baited and unbaited pitfall traps. We report 23 new state collection records of subcortical insects from Minnesota. Trap catches of subcortical insects were greatest in the wind-disturbed areas 2 years after the event, and declined thereafter. Similar trends were observed for subcortical insects in the burned areas. Both wind-disturbance and burning increased the subcortical insect species richness and diversity on the landscape. The subcortical insect species compositions of the salvaged and burned forest areas differed from those of the undisturbed and wind-disturbed areas. Trap catches of subcortical insects in response to semiochemical treatments also varied with year of sampling and land-area treatment. The greatest diversity of subcortical beetle species was in traps baited with attractants for the scolytids, Dendroctonus valens [(+)-alpha-pinene and (-)-beta-pinene] and Dryocoetes spp. [exo-brevicomin and (-)-alpha-pinene], perhaps reflecting the generic nature of the baits. The most distinct species compositions were collected in response to the woodborer and Dendroctonus simplex baits, whereas the species compositions in traps with the D. valens and Dryocoetes spp. baits, and the unbaited funnel trap were the most similar. The variation in trap catch with time and across landscapes suggests that the responses of subcortical insects to semiochemicals are more complex than previously appreciated.
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